[ 
https://issues.apache.org/jira/browse/CASSANDRA-8012?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14157232#comment-14157232
 ] 

Shawn Zhou commented on CASSANDRA-8012:
---------------------------------------

Here is the result:
cqlsh> SELECT * FROM system.schema_keyspaces;

 keyspace_name   | durable_writes | strategy_class                              
         | strategy_options
-----------------+----------------+------------------------------------------------------+----------------------------
     as_id_store |           True | 
org.apache.cassandra.locator.NetworkTopologyStrategy |      
{"DC2":"2","DC1":"2"}
 as_user_segment |           True | 
org.apache.cassandra.locator.NetworkTopologyStrategy |      
{"DC2":"2","DC1":"2"}
    as_user_fact |           True | 
org.apache.cassandra.locator.NetworkTopologyStrategy |      
{"DC2":"0","DC1":"2"}
       OpsCenter |           True |          
org.apache.cassandra.locator.SimpleStrategy | {"replication_factor":"2"}
          system |           True |           
org.apache.cassandra.locator.LocalStrategy |                         {}
   system_traces |           True |          
org.apache.cassandra.locator.SimpleStrategy | {"replication_factor":"2"}

(6 rows)

cqlsh> SELECT * FROM system.schema_columnfamilies;

 keyspace_name   | columnfamily_name         | bloom_filter_fp_chance | caching 
                                    | cf_id                                | 
column_aliases                       | comment                                  
                    | compaction_strategy_class                                 
      | compaction_strategy_options  | comparator                               
                                                                                
                                                                                
                                                                                
                                                                                
                                    | compression_parameters                    
                               | default_time_to_live | default_validator       
                  | dropped_columns | gc_grace_seconds | index_interval | 
is_dense | key_aliases                                        | key_validator   
                                                                                
                                                                           | 
local_read_repair_chance | max_compaction_threshold | max_index_interval | 
memtable_flush_period_in_ms | min_compaction_threshold | min_index_interval | 
read_repair_chance | speculative_retry | subcomparator | type     | value_alias
-----------------+---------------------------+------------------------+---------------------------------------------+--------------------------------------+--------------------------------------+--------------------------------------------------------------+-----------------------------------------------------------------+------------------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+--------------------------------------------------------------------------+----------------------+-------------------------------------------+-----------------+------------------+----------------+----------+----------------------------------------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------+--------------------------+--------------------------+--------------------+-----------------------------+--------------------------+--------------------+--------------------+-------------------+---------------+----------+-------------
     as_id_store | foreign_id_to_netid_store |                    0.1 | 
{"keys":"ALL", "rows_per_partition":"NONE"} | 
aaefa7d7-9d72-3d18-b5f0-02b30cee5bd7 |                        ["type_from"] |   
                                                           |    
org.apache.cassandra.db.compaction.LeveledCompactionStrategy | 
{"sstable_size_in_mb":"256"} |                                                  
                                                                                
                                                                                
                                                                                
                                                                   
org.apache.cassandra.db.marshal.UTF8Type | 
{"sstable_compression":"org.apache.cassandra.io.compress.LZ4Compressor"} |      
        2592000 |  org.apache.cassandra.db.marshal.UTF8Type |            null | 
            3600 |           null |     True |                                  
      ["id_from"] |                                                             
                                                                      
org.apache.cassandra.db.marshal.UTF8Type |                      0.1 |           
            32 |               2048 |                           0 |             
           4 |                128 |                  0 |    99.0PERCENTILE |    
      null | Standard |       netid
 as_user_segment |        taxid_to_segid_map |                    0.1 | 
{"keys":"ALL", "rows_per_partition":"NONE"} | 
cfaa0d76-a48c-330b-a821-bf237a65a7b9 |                                   [] |   
                                                           |    
org.apache.cassandra.db.compaction.LeveledCompactionStrategy |   
{"sstable_size_in_mb":"8"} |                                                    
                                                                                
                                                                                
                                                                                
                  
org.apache.cassandra.db.marshal.CompositeType(org.apache.cassandra.db.marshal.UTF8Type)
 | {"sstable_compression":"org.apache.cassandra.io.compress.LZ4Compressor"} |   
                 0 | org.apache.cassandra.db.marshal.BytesType |            
null |                0 |           null |    False |                           
                  ["id"] |                                                      
                                                                            
org.apache.cassandra.db.marshal.Int32Type |                      0.1 |          
             32 |               2048 |                           0 |            
            4 |                128 |                  0 |    99.0PERCENTILE |   
       null | Standard |        null
 as_user_segment |             user_segments |                    0.1 | 
{"keys":"ALL", "rows_per_partition":"NONE"} | 
e586ee3b-bec5-3594-9b94-edbd5e09a03c |                                   [] |   
                                                           |    
org.apache.cassandra.db.compaction.LeveledCompactionStrategy | 
{"sstable_size_in_mb":"256"} |                                                  
                                                                                
                                                                                
                                                                                
                    
org.apache.cassandra.db.marshal.CompositeType(org.apache.cassandra.db.marshal.UTF8Type)
 | {"sstable_compression":"org.apache.cassandra.io.compress.LZ4Compressor"} |   
           2592000 | org.apache.cassandra.db.marshal.BytesType |            
null |                0 |           null |    False |                           
                  ["id"] |                                                      
                                                                             
org.apache.cassandra.db.marshal.UTF8Type |                      0.1 |           
            32 |               2048 |                           0 |             
           4 |                128 |                  0 |    99.0PERCENTILE |    
      null | Standard |        null
 as_user_segment |        user_segments_blob |                    0.1 | 
{"keys":"ALL", "rows_per_partition":"NONE"} | 
0973df41-2b4f-30d0-b21b-05bf758d464e |                                   [] |   
                                                           |    
org.apache.cassandra.db.compaction.LeveledCompactionStrategy | 
{"sstable_size_in_mb":"256"} |                                                  
                                                                                
                                                                                
                                                                                
                    
org.apache.cassandra.db.marshal.CompositeType(org.apache.cassandra.db.marshal.UTF8Type)
 | {"sstable_compression":"org.apache.cassandra.io.compress.LZ4Compressor"} |   
           2592000 | org.apache.cassandra.db.marshal.BytesType |            
null |                0 |           null |    False |                           
                  ["id"] |                                                      
                                                                             
org.apache.cassandra.db.marshal.UTF8Type |                      0.1 |           
            32 |               2048 |                           0 |             
           4 |                128 |                  0 |    99.0PERCENTILE |    
      null | Standard |        null
    as_user_fact |              user_profile |                    0.1 | 
{"keys":"ALL", "rows_per_partition":"NONE"} | 
0f1126aa-3fc4-34b7-84a7-d81acce2194c |                                   [] |   
                                                           |    
org.apache.cassandra.db.compaction.LeveledCompactionStrategy | 
{"sstable_size_in_mb":"256"} |                                                  
                                                                                
                                                                                
                                                                                
                                                                   
org.apache.cassandra.db.marshal.UTF8Type | 
{"sstable_compression":"org.apache.cassandra.io.compress.LZ4Compressor"} |      
         259200 | org.apache.cassandra.db.marshal.BytesType |            null | 
               0 |           null |    False |                                  
           ["id"] |                                                             
                                                                      
org.apache.cassandra.db.marshal.UTF8Type |                      0.1 |           
            32 |               2048 |                           0 |             
           4 |                128 |                  0 |    99.0PERCENTILE |    
      null | Standard |        null
       OpsCenter |      bestpractice_results |                   null | 
{"keys":"ALL", "rows_per_partition":"NONE"} | 
5f792e9a-85b9-3923-8fe1-f08392c64c6e |                          ["column1"] | 
{"info": "OpsCenter management data.", "version": [5, 0, 1]} | 
org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy |               
            {} |                                                                
                                                                                
                                                                                
                                                                                
    
org.apache.cassandra.db.marshal.ReversedType(org.apache.cassandra.db.marshal.IntegerType)
 | {"sstable_compression":"org.apache.cassandra.io.compress.LZ4Compressor"} |   
                 0 | org.apache.cassandra.db.marshal.BytesType |            
null |                0 |           null |     True |                           
                 ["key"] |                                                      
                                                                             
org.apache.cassandra.db.marshal.UTF8Type |                        0 |           
             8 |               2048 |                           0 |             
           2 |                128 |               0.25 |              NONE |    
      null | Standard |       value
       OpsCenter |                    events |                   null | 
{"keys":"ALL", "rows_per_partition":"NONE"} | 
e6952b0e-d35b-3154-bcd0-cbff061250cb |                                   [] | 
{"info": "OpsCenter management data.", "version": [5, 0, 1]} | 
org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy |               
            {} |                                                                
                                                                                
                                                                                
                                                                                
                                                     
org.apache.cassandra.db.marshal.UTF8Type | 
{"sstable_compression":"org.apache.cassandra.io.compress.LZ4Compressor"} |      
              0 |  org.apache.cassandra.db.marshal.UTF8Type |            null | 
          864000 |           null |    False |                                  
          ["key"] |                                                             
                                                                      
org.apache.cassandra.db.marshal.UTF8Type |                        0 |           
            12 |               2048 |                           0 |             
           8 |                128 |               0.25 |              NONE |    
      null | Standard |        null
       OpsCenter |           events_timeline |                   null | 
{"keys":"ALL", "rows_per_partition":"NONE"} | 
2b1e2b5a-f040-3042-8e93-7b9db78c2342 |                          ["column1"] | 
{"info": "OpsCenter management data.", "version": [5, 0, 1]} | 
org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy |               
            {} |                                                                
                                                                                
                                                                                
                                                                                
                                                     
org.apache.cassandra.db.marshal.LongType | 
{"sstable_compression":"org.apache.cassandra.io.compress.LZ4Compressor"} |      
              0 | org.apache.cassandra.db.marshal.BytesType |            null | 
          864000 |           null |     True |                                  
          ["key"] |                                                             
                                                                      
org.apache.cassandra.db.marshal.UTF8Type |                        0 |           
             8 |               2048 |                           0 |             
           4 |                128 |               0.25 |              NONE |    
      null | Standard |       value
       OpsCenter |                      pdps |                   null | 
{"keys":"ALL", "rows_per_partition":"NONE"} | 
cab03baa-a7ab-3d19-8284-2c75e552f716 |                          ["column1"] | 
{"info": "OpsCenter management data.", "version": [5, 0, 1]} | 
org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy |               
            {} |                                                                
                                                                                
                                                                                
                                                                                
                                                     
org.apache.cassandra.db.marshal.UTF8Type | 
{"sstable_compression":"org.apache.cassandra.io.compress.LZ4Compressor"} |      
              0 | org.apache.cassandra.db.marshal.BytesType |            null | 
               0 |           null |     True |                                  
          ["key"] |                                                             
                                                                      
org.apache.cassandra.db.marshal.UTF8Type |                        0 |           
            32 |               2048 |                           0 |             
           4 |                128 |               0.25 |              NONE |    
      null | Standard |       value
       OpsCenter |                rollups300 |                   null | 
{"keys":"ALL", "rows_per_partition":"NONE"} | 
45c85324-387b-3523-8d05-6678f8fa8b0f |                          ["column1"] | 
{"info": "OpsCenter management data.", "version": [5, 0, 1]} | 
org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy |               
            {} |                                                                
                                                                                
                                                                                
                                                                                
                                                  
org.apache.cassandra.db.marshal.IntegerType | 
{"sstable_compression":"org.apache.cassandra.io.compress.LZ4Compressor"} |      
              0 | org.apache.cassandra.db.marshal.BytesType |            null | 
               0 |           null |     True |                                  
          ["key"] |                                                             
                                                                      
org.apache.cassandra.db.marshal.UTF8Type |                        0 |           
            16 |               2048 |                           0 |             
           4 |                128 |               0.25 |              NONE |    
      null | Standard |       value
       OpsCenter |                 rollups60 |                   null | 
{"keys":"ALL", "rows_per_partition":"NONE"} | 
98bb99a2-42f2-3fcd-af67-208a4faae5fa |                          ["column1"] | 
{"info": "OpsCenter management data.", "version": [5, 0, 1]} | 
org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy |               
            {} |                                                                
                                                                                
                                                                                
                                                                                
                                                  
org.apache.cassandra.db.marshal.IntegerType | 
{"sstable_compression":"org.apache.cassandra.io.compress.LZ4Compressor"} |      
              0 | org.apache.cassandra.db.marshal.BytesType |            null | 
               0 |           null |     True |                                  
          ["key"] |                                                             
                                                                      
org.apache.cassandra.db.marshal.UTF8Type |                        0 |           
            32 |               2048 |                           0 |             
           4 |                128 |               0.25 |              NONE |    
      null | Standard |       value
       OpsCenter |               rollups7200 |                   null | 
{"keys":"ALL", "rows_per_partition":"NONE"} | 
349c2c14-e97d-367c-a2ac-d4de7ec12e7f |                          ["column1"] | 
{"info": "OpsCenter management data.", "version": [5, 0, 1]} | 
org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy |               
            {} |                                                                
                                                                                
                                                                                
                                                                                
                                                  
org.apache.cassandra.db.marshal.IntegerType | 
{"sstable_compression":"org.apache.cassandra.io.compress.LZ4Compressor"} |      
              0 | org.apache.cassandra.db.marshal.BytesType |            null | 
               0 |           null |     True |                                  
          ["key"] |                                                             
                                                                      
org.apache.cassandra.db.marshal.UTF8Type |                        0 |           
             8 |               2048 |                           0 |             
           2 |                128 |               0.25 |              NONE |    
      null | Standard |       value
       OpsCenter |              rollups86400 |                   null | 
{"keys":"ALL", "rows_per_partition":"NONE"} | 
f26e53f3-184c-39a9-9123-8cdea2bad63b |                          ["column1"] | 
{"info": "OpsCenter management data.", "version": [5, 0, 1]} | 
org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy |               
            {} |                                                                
                                                                                
                                                                                
                                                                                
                                                  
org.apache.cassandra.db.marshal.IntegerType | 
{"sstable_compression":"org.apache.cassandra.io.compress.LZ4Compressor"} |      
              0 | org.apache.cassandra.db.marshal.BytesType |            null | 
               0 |           null |     True |                                  
          ["key"] |                                                             
                                                                      
org.apache.cassandra.db.marshal.UTF8Type |                        0 |           
             8 |               2048 |                           0 |             
           2 |                128 |               0.25 |              NONE |    
      null | Standard |       value
       OpsCenter |                  settings |                   null | 
{"keys":"ALL", "rows_per_partition":"NONE"} | 
c1071195-c026-3f5e-b31f-b5780bf41c55 |                          ["column1"] | 
{"info": "OpsCenter management data.", "version": [5, 0, 1]} | 
org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy |               
            {} |                                                                
                                                                                
                                                                                
                                                                                
                                                    
org.apache.cassandra.db.marshal.BytesType | 
{"sstable_compression":"org.apache.cassandra.io.compress.LZ4Compressor"} |      
              0 | org.apache.cassandra.db.marshal.BytesType |            null | 
          864000 |           null |     True |                                  
          ["key"] |                                                             
                                                                     
org.apache.cassandra.db.marshal.BytesType |                        0 |          
             12 |               2048 |                           0 |            
            8 |                128 |                  1 |              NONE |   
       null | Standard |       value
          system |                 IndexInfo |                   0.01 | 
{"keys":"ALL", "rows_per_partition":"NONE"} | 
9f5c6374-d485-3229-9a0a-5094af9ad1e3 |                       ["index_name"] |   
                          indexes that have been completed | 
org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy |               
            {} |                                                                
                                                                                
                                                                                
                                                                                
                                                     
org.apache.cassandra.db.marshal.UTF8Type | 
{"sstable_compression":"org.apache.cassandra.io.compress.LZ4Compressor"} |      
              0 | org.apache.cassandra.db.marshal.BytesType |            null | 
               0 |           null |     True |                                  
   ["table_name"] |                                                             
                                                                      
org.apache.cassandra.db.marshal.UTF8Type |                        0 |           
            32 |               2048 |                     3600000 |             
           4 |                128 |                  0 |    99.0PERCENTILE |    
      null | Standard |
          system |                  batchlog |                   0.01 | 
{"keys":"ALL", "rows_per_partition":"NONE"} | 
0290003c-977e-397c-ac3e-fdfdc01d626b |                                   [] |   
                                        uncommited batches | 
org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy |        
{"min_threshold":"2"} |                                                         
                                                                                
                                                                                
                                                                                
             
org.apache.cassandra.db.marshal.CompositeType(org.apache.cassandra.db.marshal.UTF8Type)
 | {"sstable_compression":"org.apache.cassandra.io.compress.LZ4Compressor"} |   
                 0 | org.apache.cassandra.db.marshal.BytesType |            
null |                0 |           null |    False |                           
                  ["id"] |                                                      
                                                                             
org.apache.cassandra.db.marshal.UUIDType |                        0 |           
            32 |               2048 |                     3600000 |             
           2 |                128 |                  0 |    99.0PERCENTILE |    
      null | Standard |        null
          system |        compaction_history |                   0.01 | 
{"keys":"ALL", "rows_per_partition":"NONE"} | 
b4dbb7b4-dc49-3fb5-b3bf-ce6e434832ca |                                   [] |   
                               show all compaction history | 
org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy |               
            {} |                                                                
                                           
org.apache.cassandra.db.marshal.CompositeType(org.apache.cassandra.db.marshal.UTF8Type,org.apache.cassandra.db.marshal.ColumnToCollectionType(726f77735f6d6572676564:org.apache.cassandra.db.marshal.MapType(org.apache.cassandra.db.marshal.Int32Type,org.apache.cassandra.db.marshal.LongType)))
 | {"sstable_compression":"org.apache.cassandra.io.compress.LZ4Compressor"} |   
            604800 | org.apache.cassandra.db.marshal.BytesType |            
null |                0 |           null |    False |                           
                  ["id"] |                                                      
                                                                             
org.apache.cassandra.db.marshal.UUIDType |                        0 |           
            32 |               2048 |                     3600000 |             
           4 |                128 |                  0 |    99.0PERCENTILE |    
      null | Standard |        null
          system |   compactions_in_progress |                   0.01 | 
{"keys":"ALL", "rows_per_partition":"NONE"} | 
55080ab0-5d9c-3886-90a4-acb25fe1f77b |                                   [] |   
                                    unfinished compactions | 
org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy |               
            {} |                                                                
                                                                                
              
org.apache.cassandra.db.marshal.CompositeType(org.apache.cassandra.db.marshal.UTF8Type,org.apache.cassandra.db.marshal.ColumnToCollectionType(696e70757473:org.apache.cassandra.db.marshal.SetType(org.apache.cassandra.db.marshal.Int32Type)))
 | {"sstable_compression":"org.apache.cassandra.io.compress.LZ4Compressor"} |   
                 0 | org.apache.cassandra.db.marshal.BytesType |            
null |                0 |           null |    False |                           
                  ["id"] |                                                      
                                                                             
org.apache.cassandra.db.marshal.UUIDType |                        0 |           
            32 |               2048 |                     3600000 |             
           4 |                128 |                  0 |    99.0PERCENTILE |    
      null | Standard |        null
          system |                     hints |                   0.01 | 
{"keys":"ALL", "rows_per_partition":"NONE"} | 
2666e205-73ef-38b3-90fe-fecf96e8f0c7 |        ["hint_id","message_version"] |   
                                   hints awaiting delivery | 
org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy |          
{"enabled":"false"} |                                                           
                                                                                
                                                                                
                                             
org.apache.cassandra.db.marshal.CompositeType(org.apache.cassandra.db.marshal.TimeUUIDType,org.apache.cassandra.db.marshal.Int32Type)
 | {"sstable_compression":"org.apache.cassandra.io.compress.LZ4Compressor"} |   
                 0 | org.apache.cassandra.db.marshal.BytesType |            
null |                0 |           null |     True |                           
           ["target_id"] |                                                      
                                                                             
org.apache.cassandra.db.marshal.UUIDType |                        0 |           
            32 |               2048 |                     3600000 |             
           4 |                128 |                  0 |    99.0PERCENTILE |    
      null | Standard |    mutation
          system |                     local |                   0.01 | 
{"keys":"ALL", "rows_per_partition":"NONE"} | 
7ad54392-bcdd-35a6-8417-4e047860b377 |                                   [] |   
                          information about the local node | 
org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy |               
            {} |          
org.apache.cassandra.db.marshal.CompositeType(org.apache.cassandra.db.marshal.UTF8Type,org.apache.cassandra.db.marshal.ColumnToCollectionType(7472756e63617465645f6174:org.apache.cassandra.db.marshal.MapType(org.apache.cassandra.db.marshal.UUIDType,org.apache.cassandra.db.marshal.BytesType),746f6b656e73:org.apache.cassandra.db.marshal.SetType(org.apache.cassandra.db.marshal.UTF8Type)))
 | {"sstable_compression":"org.apache.cassandra.io.compress.LZ4Compressor"} |   
                 0 | org.apache.cassandra.db.marshal.BytesType |            
null |                0 |           null |    False |                           
                 ["key"] |                                                      
                                                                             
org.apache.cassandra.db.marshal.UTF8Type |                        0 |           
            32 |               2048 |                     3600000 |             
           4 |                128 |                  0 |    99.0PERCENTILE |    
      null | Standard |        null
          system |                     paxos |                    0.1 | 
{"keys":"ALL", "rows_per_partition":"NONE"} | 
b7b7f0c2-fd0a-3410-8c05-3ef614bb7c2d |                            ["cf_id"] |   
                               in-progress paxos proposals |    
org.apache.cassandra.db.compaction.LeveledCompactionStrategy |                  
         {} |                                                                   
                                                                                
                                                                                
                                          
org.apache.cassandra.db.marshal.CompositeType(org.apache.cassandra.db.marshal.UUIDType,org.apache.cassandra.db.marshal.UTF8Type)
 | {"sstable_compression":"org.apache.cassandra.io.compress.LZ4Compressor"} |   
                 0 | org.apache.cassandra.db.marshal.BytesType |            
null |                0 |           null |    False |                           
             ["row_key"] |                                                      
                                                                            
org.apache.cassandra.db.marshal.BytesType |                        0 |          
             32 |               2048 |                     3600000 |            
            4 |                128 |                  0 |    99.0PERCENTILE |   
       null | Standard |        null
          system |               peer_events |                   0.01 | 
{"keys":"ALL", "rows_per_partition":"NONE"} | 
59dfeaea-8db2-3341-91ef-109974d81484 |                                   [] |   
                       cf contains events related to peers | 
org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy |               
            {} |                                                                
                                       
org.apache.cassandra.db.marshal.CompositeType(org.apache.cassandra.db.marshal.UTF8Type,org.apache.cassandra.db.marshal.ColumnToCollectionType(68696e74735f64726f70706564:org.apache.cassandra.db.marshal.MapType(org.apache.cassandra.db.marshal.UUIDType,org.apache.cassandra.db.marshal.Int32Type)))
 | {"sstable_compression":"org.apache.cassandra.io.compress.LZ4Compressor"} |   
                 0 | org.apache.cassandra.db.marshal.BytesType |            
null |                0 |           null |    False |                           
                ["peer"] |                                                      
                                                                      
org.apache.cassandra.db.marshal.InetAddressType |                        0 |    
                   32 |               2048 |                     3600000 |      
                  4 |                128 |                  0 |    
99.0PERCENTILE |          null | Standard |        null
          system |                     peers |                   0.01 | 
{"keys":"ALL", "rows_per_partition":"NONE"} | 
37f71aca-7dc2-383b-a706-72528af04d4f |                                   [] |   
                                known peers in the cluster | 
org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy |               
            {} |                                                                
                                                                                
               
org.apache.cassandra.db.marshal.CompositeType(org.apache.cassandra.db.marshal.UTF8Type,org.apache.cassandra.db.marshal.ColumnToCollectionType(746f6b656e73:org.apache.cassandra.db.marshal.SetType(org.apache.cassandra.db.marshal.UTF8Type)))
 | {"sstable_compression":"org.apache.cassandra.io.compress.LZ4Compressor"} |   
                 0 | org.apache.cassandra.db.marshal.BytesType |            
null |                0 |           null |    False |                           
                ["peer"] |                                                      
                                                                      
org.apache.cassandra.db.marshal.InetAddressType |                        0 |    
                   32 |               2048 |                     3600000 |      
                  4 |                128 |                  0 |    
99.0PERCENTILE |          null | Standard |        null
          system |               range_xfers |                   0.01 | 
{"keys":"ALL", "rows_per_partition":"NONE"} | 
55d76438-4e55-3f8b-9f6e-676d4af3976d |                                   [] |   
                        ranges requested for transfer here | 
org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy |               
            {} |                                                                
                                                                                
                                                                                
                                                                                
      
org.apache.cassandra.db.marshal.CompositeType(org.apache.cassandra.db.marshal.UTF8Type)
 | {"sstable_compression":"org.apache.cassandra.io.compress.LZ4Compressor"} |   
                 0 | org.apache.cassandra.db.marshal.BytesType |            
null |                0 |           null |    False |                           
         ["token_bytes"] |                                                      
                                                                            
org.apache.cassandra.db.marshal.BytesType |                        0 |          
             32 |               2048 |                     3600000 |            
            4 |                128 |                  0 |    99.0PERCENTILE |   
       null | Standard |        null
          system |     schema_columnfamilies |                   0.01 | 
{"keys":"ALL", "rows_per_partition":"NONE"} | 
45f5b360-24bc-3f83-a363-1034ea4fa697 |                ["columnfamily_name"] |   
                                  ColumnFamily definitions | 
org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy |               
            {} |                                                           
org.apache.cassandra.db.marshal.CompositeType(org.apache.cassandra.db.marshal.UTF8Type,org.apache.cassandra.db.marshal.UTF8Type,org.apache.cassandra.db.marshal.ColumnToCollectionType(64726f707065645f636f6c756d6e73:org.apache.cassandra.db.marshal.MapType(org.apache.cassandra.db.marshal.UTF8Type,org.apache.cassandra.db.marshal.LongType)))
 | {"sstable_compression":"org.apache.cassandra.io.compress.LZ4Compressor"} |   
                 0 | org.apache.cassandra.db.marshal.BytesType |            
null |           604800 |           null |    False |                           
       ["keyspace_name"] |                                                      
                                                                             
org.apache.cassandra.db.marshal.UTF8Type |                        0 |           
            32 |               2048 |                     3600000 |             
           4 |                128 |                  0 |    99.0PERCENTILE |    
      null | Standard |        null
          system |            schema_columns |                   0.01 | 
{"keys":"ALL", "rows_per_partition":"NONE"} | 
296e9c04-9bec-3085-827d-c17d3df2122a |  ["columnfamily_name","column_name"] |   
                            ColumnFamily column attributes | 
org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy |               
            {} |                                                                
                                                                                
                                                                                
    
org.apache.cassandra.db.marshal.CompositeType(org.apache.cassandra.db.marshal.UTF8Type,org.apache.cassandra.db.marshal.UTF8Type,org.apache.cassandra.db.marshal.UTF8Type)
 | {"sstable_compression":"org.apache.cassandra.io.compress.LZ4Compressor"} |   
                 0 | org.apache.cassandra.db.marshal.BytesType |            
null |           604800 |           null |    False |                           
       ["keyspace_name"] |                                                      
                                                                             
org.apache.cassandra.db.marshal.UTF8Type |                        0 |           
            32 |               2048 |                     3600000 |             
           4 |                128 |                  0 |    99.0PERCENTILE |    
      null | Standard |        null
          system |          schema_keyspaces |                   0.01 | 
{"keys":"ALL", "rows_per_partition":"NONE"} | 
b0f22357-4458-3cdb-9631-c43e59ce3676 |                                   [] |   
                                      keyspace definitions | 
org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy |               
            {} |                                                                
                                                                                
                                                                                
                                                                                
                                                     
org.apache.cassandra.db.marshal.UTF8Type | 
{"sstable_compression":"org.apache.cassandra.io.compress.LZ4Compressor"} |      
              0 | org.apache.cassandra.db.marshal.BytesType |            null | 
          604800 |           null |    False |                                  
["keyspace_name"] |                                                             
                                                                      
org.apache.cassandra.db.marshal.UTF8Type |                        0 |           
            32 |               2048 |                     3600000 |             
           4 |                128 |                  0 |    99.0PERCENTILE |    
      null | Standard |        null
          system |           schema_triggers |                   0.01 | 
{"keys":"ALL", "rows_per_partition":"NONE"} | 
0359bc71-7123-3ee1-9a4a-b9dfb11fc125 | ["columnfamily_name","trigger_name"] |   
                                   triggers metadata table | 
org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy |               
            {} |                  
org.apache.cassandra.db.marshal.CompositeType(org.apache.cassandra.db.marshal.UTF8Type,org.apache.cassandra.db.marshal.UTF8Type,org.apache.cassandra.db.marshal.UTF8Type,org.apache.cassandra.db.marshal.ColumnToCollectionType(747269676765725f6f7074696f6e73:org.apache.cassandra.db.marshal.MapType(org.apache.cassandra.db.marshal.UTF8Type,org.apache.cassandra.db.marshal.UTF8Type)))
 | {"sstable_compression":"org.apache.cassandra.io.compress.LZ4Compressor"} |   
                 0 | org.apache.cassandra.db.marshal.BytesType |            
null |           604800 |           null |    False |                           
       ["keyspace_name"] |                                                      
                                                                             
org.apache.cassandra.db.marshal.UTF8Type |                        0 |           
            32 |               2048 |                     3600000 |             
           4 |                128 |                  0 |    99.0PERCENTILE |    
      null | Standard |        null
          system |          schema_usertypes |                   0.01 | 
{"keys":"ALL", "rows_per_partition":"NONE"} | 
3aa75225-4f82-350b-8d5c-430fa221fa0a |                        ["type_name"] |   
                                        Defined user types | 
org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy |               
            {} | 
org.apache.cassandra.db.marshal.CompositeType(org.apache.cassandra.db.marshal.UTF8Type,org.apache.cassandra.db.marshal.UTF8Type,org.apache.cassandra.db.marshal.ColumnToCollectionType(6669656c645f6e616d6573:org.apache.cassandra.db.marshal.ListType(org.apache.cassandra.db.marshal.UTF8Type),6669656c645f7479706573:org.apache.cassandra.db.marshal.ListType(org.apache.cassandra.db.marshal.UTF8Type)))
 | {"sstable_compression":"org.apache.cassandra.io.compress.LZ4Compressor"} |   
                 0 | org.apache.cassandra.db.marshal.BytesType |            
null |           604800 |           null |    False |                           
       ["keyspace_name"] |                                                      
                                                                             
org.apache.cassandra.db.marshal.UTF8Type |                        0 |           
            32 |               2048 |                     3600000 |             
           4 |                128 |                  0 |    99.0PERCENTILE |    
      null | Standard |        null
          system |          sstable_activity |                   0.01 | 
{"keys":"ALL", "rows_per_partition":"NONE"} | 
5a1ff267-ace0-3f12-8563-cfae6103c65e |                                   [] |   
                               historic sstable read rates | 
org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy |               
            {} |                                                                
                                                                                
                                                                                
                                                                                
      
org.apache.cassandra.db.marshal.CompositeType(org.apache.cassandra.db.marshal.UTF8Type)
 | {"sstable_compression":"org.apache.cassandra.io.compress.LZ4Compressor"} |   
                 0 | org.apache.cassandra.db.marshal.BytesType |            
null |                0 |           null |    False | 
["keyspace_name","columnfamily_name","generation"] | 
org.apache.cassandra.db.marshal.CompositeType(org.apache.cassandra.db.marshal.UTF8Type,org.apache.cassandra.db.marshal.UTF8Type,org.apache.cassandra.db.marshal.Int32Type)
 |                        0 |                       32 |               2048 |   
                  3600000 |                        4 |                128 |     
             0 |    99.0PERCENTILE |          null | Standard |        null
   system_traces |                    events |                   0.01 | 
{"keys":"ALL", "rows_per_partition":"NONE"} | 
8826e8e9-e16a-3728-8753-3bc1fc713c25 |                         ["event_id"] |   
                                                           | 
org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy |               
            {} |                                                                
                                                                                
                                                                                
                                         
org.apache.cassandra.db.marshal.CompositeType(org.apache.cassandra.db.marshal.TimeUUIDType,org.apache.cassandra.db.marshal.UTF8Type)
 | {"sstable_compression":"org.apache.cassandra.io.compress.LZ4Compressor"} |   
                 0 | org.apache.cassandra.db.marshal.BytesType |            
null |                0 |           null |    False |                           
          ["session_id"] |                                                      
                                                                             
org.apache.cassandra.db.marshal.UUIDType |                        0 |           
            32 |               2048 |                     3600000 |             
           4 |                128 |                  0 |    99.0PERCENTILE |    
      null | Standard |        null
   system_traces |                  sessions |                   0.01 | 
{"keys":"ALL", "rows_per_partition":"NONE"} | 
c5e99f16-8677-3914-b17e-960613512345 |                                   [] |   
                                           traced sessions | 
org.apache.cassandra.db.compaction.SizeTieredCompactionStrategy |               
            {} |                                                                
                                              
org.apache.cassandra.db.marshal.CompositeType(org.apache.cassandra.db.marshal.UTF8Type,org.apache.cassandra.db.marshal.ColumnToCollectionType(706172616d6574657273:org.apache.cassandra.db.marshal.MapType(org.apache.cassandra.db.marshal.UTF8Type,org.apache.cassandra.db.marshal.UTF8Type)))
 | {"sstable_compression":"org.apache.cassandra.io.compress.LZ4Compressor"} |   
                 0 | org.apache.cassandra.db.marshal.BytesType |            
null |                0 |           null |    False |                           
          ["session_id"] |                                                      
                                                                             
org.apache.cassandra.db.marshal.UUIDType |                        0 |           
            32 |               2048 |                     3600000 |             
           4 |                128 |                  0 |    99.0PERCENTILE |    
      null | Standard |        null

(32 rows)

cqlsh> SELECT * FROM system.schema_columns;

 keyspace_name   | columnfamily_name         | column_name                 | 
component_index | index_name | index_options | index_type | type           | 
validator
-----------------+---------------------------+-----------------------------+-----------------+------------+---------------+------------+----------------+-----------------------------------------------------------------------------------------------------------------------------
     as_id_store | foreign_id_to_netid_store |                     id_from |    
        null |       null |          null |       null |  partition_key |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
     as_id_store | foreign_id_to_netid_store |                       netid |    
        null |       null |          null |       null |  compact_value |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
     as_id_store | foreign_id_to_netid_store |                   type_from |    
        null |       null |          null |       null | clustering_key |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
 as_user_segment |        taxid_to_segid_map |            calculation_time |    
           0 |       null |          null |       null |        regular |       
                                                                        
org.apache.cassandra.db.marshal.TimestampType
 as_user_segment |        taxid_to_segid_map |                          id |    
        null |       null |          null |       null |  partition_key |       
                                                                            
org.apache.cassandra.db.marshal.Int32Type
 as_user_segment |        taxid_to_segid_map |                     mapping |    
           0 |       null |          null |       null |        regular |       
                                                                            
org.apache.cassandra.db.marshal.BytesType
 as_user_segment |             user_segments |                          id |    
        null |       null |          null |       null |  partition_key |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
 as_user_segment |             user_segments |                    segments |    
           0 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
 as_user_segment |        user_segments_blob |                          id |    
        null |       null |          null |       null |  partition_key |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
 as_user_segment |        user_segments_blob |                    segments |    
           0 |       null |          null |       null |        regular |       
                                                                            
org.apache.cassandra.db.marshal.BytesType
    as_user_fact |              user_profile |                          id |    
        null |       null |          null |       null |  partition_key |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
    as_user_fact |              user_profile |                     profile |    
        null |       null |          null |       null |        regular |       
                                                                            
org.apache.cassandra.db.marshal.BytesType
       OpsCenter |      bestpractice_results |                     column1 |    
        null |       null |          null |       null | clustering_key |       
                            
org.apache.cassandra.db.marshal.ReversedType(org.apache.cassandra.db.marshal.IntegerType)
       OpsCenter |      bestpractice_results |                         key |    
        null |       null |          null |       null |  partition_key |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
       OpsCenter |      bestpractice_results |                       value |    
        null |       null |          null |       null |  compact_value |       
                                                                            
org.apache.cassandra.db.marshal.BytesType
       OpsCenter |                    events |                      action |    
        null |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.LongType
       OpsCenter |                    events |                         key |    
        null |       null |          null |       null |  partition_key |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
       OpsCenter |                    events |                       level |    
        null |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.LongType
       OpsCenter |                    events |                     success |    
        null |       null |          null |       null |        regular |       
                                                                          
org.apache.cassandra.db.marshal.BooleanType
       OpsCenter |                    events |                        time |    
        null |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.LongType
       OpsCenter |           events_timeline |                     column1 |    
        null |       null |          null |       null | clustering_key |       
                                                                             
org.apache.cassandra.db.marshal.LongType
       OpsCenter |           events_timeline |                         key |    
        null |       null |          null |       null |  partition_key |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
       OpsCenter |           events_timeline |                       value |    
        null |       null |          null |       null |  compact_value |       
                                                                            
org.apache.cassandra.db.marshal.BytesType
       OpsCenter |                      pdps |                     column1 |    
        null |       null |          null |       null | clustering_key |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
       OpsCenter |                      pdps |                         key |    
        null |       null |          null |       null |  partition_key |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
       OpsCenter |                      pdps |                       value |    
        null |       null |          null |       null |  compact_value |       
                                                                            
org.apache.cassandra.db.marshal.BytesType
       OpsCenter |                rollups300 |                     column1 |    
        null |       null |          null |       null | clustering_key |       
                                                                          
org.apache.cassandra.db.marshal.IntegerType
       OpsCenter |                rollups300 |                         key |    
        null |       null |          null |       null |  partition_key |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
       OpsCenter |                rollups300 |                       value |    
        null |       null |          null |       null |  compact_value |       
                                                                            
org.apache.cassandra.db.marshal.BytesType
       OpsCenter |                 rollups60 |                     column1 |    
        null |       null |          null |       null | clustering_key |       
                                                                          
org.apache.cassandra.db.marshal.IntegerType
       OpsCenter |                 rollups60 |                         key |    
        null |       null |          null |       null |  partition_key |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
       OpsCenter |                 rollups60 |                       value |    
        null |       null |          null |       null |  compact_value |       
                                                                            
org.apache.cassandra.db.marshal.BytesType
       OpsCenter |               rollups7200 |                     column1 |    
        null |       null |          null |       null | clustering_key |       
                                                                          
org.apache.cassandra.db.marshal.IntegerType
       OpsCenter |               rollups7200 |                         key |    
        null |       null |          null |       null |  partition_key |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
       OpsCenter |               rollups7200 |                       value |    
        null |       null |          null |       null |  compact_value |       
                                                                            
org.apache.cassandra.db.marshal.BytesType
       OpsCenter |              rollups86400 |                     column1 |    
        null |       null |          null |       null | clustering_key |       
                                                                          
org.apache.cassandra.db.marshal.IntegerType
       OpsCenter |              rollups86400 |                         key |    
        null |       null |          null |       null |  partition_key |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
       OpsCenter |              rollups86400 |                       value |    
        null |       null |          null |       null |  compact_value |       
                                                                            
org.apache.cassandra.db.marshal.BytesType
       OpsCenter |                  settings |                     column1 |    
        null |       null |          null |       null | clustering_key |       
                                                                            
org.apache.cassandra.db.marshal.BytesType
       OpsCenter |                  settings |                         key |    
        null |       null |          null |       null |  partition_key |       
                                                                            
org.apache.cassandra.db.marshal.BytesType
       OpsCenter |                  settings |                       value |    
        null |       null |          null |       null |  compact_value |       
                                                                            
org.apache.cassandra.db.marshal.BytesType
          system |                 IndexInfo |                             |    
        null |       null |          null |       null |  compact_value |       
                                                                            
org.apache.cassandra.db.marshal.BytesType
          system |                 IndexInfo |                  index_name |    
        null |       null |          null |       null | clustering_key |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |                 IndexInfo |                  table_name |    
        null |       null |          null |       null |  partition_key |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |                  batchlog |                        data |    
           0 |       null |          null |       null |        regular |       
                                                                            
org.apache.cassandra.db.marshal.BytesType
          system |                  batchlog |                          id |    
        null |       null |          null |       null |  partition_key |       
                                                                             
org.apache.cassandra.db.marshal.UUIDType
          system |                  batchlog |                     version |    
           0 |       null |          null |       null |        regular |       
                                                                            
org.apache.cassandra.db.marshal.Int32Type
          system |                  batchlog |                  written_at |    
           0 |       null |          null |       null |        regular |       
                                                                        
org.apache.cassandra.db.marshal.TimestampType
          system |        compaction_history |                    bytes_in |    
           0 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.LongType
          system |        compaction_history |                   bytes_out |    
           0 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.LongType
          system |        compaction_history |           columnfamily_name |    
           0 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |        compaction_history |                compacted_at |    
           0 |       null |          null |       null |        regular |       
                                                                        
org.apache.cassandra.db.marshal.TimestampType
          system |        compaction_history |                          id |    
        null |       null |          null |       null |  partition_key |       
                                                                             
org.apache.cassandra.db.marshal.UUIDType
          system |        compaction_history |               keyspace_name |    
           0 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |        compaction_history |                 rows_merged |    
           0 |       null |          null |       null |        regular | 
org.apache.cassandra.db.marshal.MapType(org.apache.cassandra.db.marshal.Int32Type,org.apache.cassandra.db.marshal.LongType)
          system |   compactions_in_progress |           columnfamily_name |    
           0 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |   compactions_in_progress |                          id |    
        null |       null |          null |       null |  partition_key |       
                                                                             
org.apache.cassandra.db.marshal.UUIDType
          system |   compactions_in_progress |                      inputs |    
           0 |       null |          null |       null |        regular |       
                                   
org.apache.cassandra.db.marshal.SetType(org.apache.cassandra.db.marshal.Int32Type)
          system |   compactions_in_progress |               keyspace_name |    
           0 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |                     hints |                     hint_id |    
           0 |       null |          null |       null | clustering_key |       
                                                                         
org.apache.cassandra.db.marshal.TimeUUIDType
          system |                     hints |             message_version |    
           1 |       null |          null |       null | clustering_key |       
                                                                            
org.apache.cassandra.db.marshal.Int32Type
          system |                     hints |                    mutation |    
        null |       null |          null |       null |  compact_value |       
                                                                            
org.apache.cassandra.db.marshal.BytesType
          system |                     hints |                   target_id |    
        null |       null |          null |       null |  partition_key |       
                                                                             
org.apache.cassandra.db.marshal.UUIDType
          system |                     local |                bootstrapped |    
           0 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |                     local |                cluster_name |    
           0 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |                     local |                 cql_version |    
           0 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |                     local |                 data_center |    
           0 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |                     local |           gossip_generation |    
           0 |       null |          null |       null |        regular |       
                                                                            
org.apache.cassandra.db.marshal.Int32Type
          system |                     local |                     host_id |    
           0 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UUIDType
          system |                     local |                         key |    
        null |       null |          null |       null |  partition_key |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |                     local |     native_protocol_version |    
           0 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |                     local |                 partitioner |    
           0 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |                     local |                        rack |    
           0 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |                     local |             release_version |    
           0 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |                     local |              schema_version |    
           0 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UUIDType
          system |                     local |              thrift_version |    
           0 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |                     local |                      tokens |    
           0 |       null |          null |       null |        regular |       
                                    
org.apache.cassandra.db.marshal.SetType(org.apache.cassandra.db.marshal.UTF8Type)
          system |                     local |                truncated_at |    
           0 |       null |          null |       null |        regular | 
org.apache.cassandra.db.marshal.MapType(org.apache.cassandra.db.marshal.UUIDType,org.apache.cassandra.db.marshal.BytesType)
          system |                     paxos |                       cf_id |    
           0 |       null |          null |       null | clustering_key |       
                                                                             
org.apache.cassandra.db.marshal.UUIDType
          system |                     paxos |          in_progress_ballot |    
           1 |       null |          null |       null |        regular |       
                                                                         
org.apache.cassandra.db.marshal.TimeUUIDType
          system |                     paxos |          most_recent_commit |    
           1 |       null |          null |       null |        regular |       
                                                                            
org.apache.cassandra.db.marshal.BytesType
          system |                     paxos |       most_recent_commit_at |    
           1 |       null |          null |       null |        regular |       
                                                                         
org.apache.cassandra.db.marshal.TimeUUIDType
          system |                     paxos |                    proposal |    
           1 |       null |          null |       null |        regular |       
                                                                            
org.apache.cassandra.db.marshal.BytesType
          system |                     paxos |             proposal_ballot |    
           1 |       null |          null |       null |        regular |       
                                                                         
org.apache.cassandra.db.marshal.TimeUUIDType
          system |                     paxos |                     row_key |    
        null |       null |          null |       null |  partition_key |       
                                                                            
org.apache.cassandra.db.marshal.BytesType
          system |               peer_events |               hints_dropped |    
           0 |       null |          null |       null |        regular | 
org.apache.cassandra.db.marshal.MapType(org.apache.cassandra.db.marshal.UUIDType,org.apache.cassandra.db.marshal.Int32Type)
          system |               peer_events |                        peer |    
        null |       null |          null |       null |  partition_key |       
                                                                      
org.apache.cassandra.db.marshal.InetAddressType
          system |                     peers |                 data_center |    
           0 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |                     peers |                     host_id |    
           0 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UUIDType
          system |                     peers |                        peer |    
        null |       null |          null |       null |  partition_key |       
                                                                      
org.apache.cassandra.db.marshal.InetAddressType
          system |                     peers |                preferred_ip |    
           0 |       null |          null |       null |        regular |       
                                                                      
org.apache.cassandra.db.marshal.InetAddressType
          system |                     peers |                        rack |    
           0 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |                     peers |             release_version |    
           0 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |                     peers |                 rpc_address |    
           0 |       null |          null |       null |        regular |       
                                                                      
org.apache.cassandra.db.marshal.InetAddressType
          system |                     peers |              schema_version |    
           0 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UUIDType
          system |                     peers |                      tokens |    
           0 |       null |          null |       null |        regular |       
                                    
org.apache.cassandra.db.marshal.SetType(org.apache.cassandra.db.marshal.UTF8Type)
          system |               range_xfers |                requested_at |    
           0 |       null |          null |       null |        regular |       
                                                                        
org.apache.cassandra.db.marshal.TimestampType
          system |               range_xfers |                 token_bytes |    
        null |       null |          null |       null |  partition_key |       
                                                                            
org.apache.cassandra.db.marshal.BytesType
          system |     schema_columnfamilies |      bloom_filter_fp_chance |    
           1 |       null |          null |       null |        regular |       
                                                                           
org.apache.cassandra.db.marshal.DoubleType
          system |     schema_columnfamilies |                     caching |    
           1 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |     schema_columnfamilies |                       cf_id |    
           1 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UUIDType
          system |     schema_columnfamilies |              column_aliases |    
           1 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |     schema_columnfamilies |           columnfamily_name |    
           0 |       null |          null |       null | clustering_key |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |     schema_columnfamilies |                     comment |    
           1 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |     schema_columnfamilies |   compaction_strategy_class |    
           1 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |     schema_columnfamilies | compaction_strategy_options |    
           1 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |     schema_columnfamilies |                  comparator |    
           1 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |     schema_columnfamilies |      compression_parameters |    
           1 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |     schema_columnfamilies |        default_time_to_live |    
           1 |       null |          null |       null |        regular |       
                                                                            
org.apache.cassandra.db.marshal.Int32Type
          system |     schema_columnfamilies |           default_validator |    
           1 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |     schema_columnfamilies |             dropped_columns |    
           1 |       null |          null |       null |        regular |  
org.apache.cassandra.db.marshal.MapType(org.apache.cassandra.db.marshal.UTF8Type,org.apache.cassandra.db.marshal.LongType)
          system |     schema_columnfamilies |            gc_grace_seconds |    
           1 |       null |          null |       null |        regular |       
                                                                            
org.apache.cassandra.db.marshal.Int32Type
          system |     schema_columnfamilies |              index_interval |    
           1 |       null |          null |       null |        regular |       
                                                                            
org.apache.cassandra.db.marshal.Int32Type
          system |     schema_columnfamilies |                    is_dense |    
           1 |       null |          null |       null |        regular |       
                                                                          
org.apache.cassandra.db.marshal.BooleanType
          system |     schema_columnfamilies |                 key_aliases |    
           1 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |     schema_columnfamilies |               key_validator |    
           1 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |     schema_columnfamilies |               keyspace_name |    
        null |       null |          null |       null |  partition_key |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |     schema_columnfamilies |    local_read_repair_chance |    
           1 |       null |          null |       null |        regular |       
                                                                           
org.apache.cassandra.db.marshal.DoubleType
          system |     schema_columnfamilies |    max_compaction_threshold |    
           1 |       null |          null |       null |        regular |       
                                                                            
org.apache.cassandra.db.marshal.Int32Type
          system |     schema_columnfamilies |          max_index_interval |    
           1 |       null |          null |       null |        regular |       
                                                                            
org.apache.cassandra.db.marshal.Int32Type
          system |     schema_columnfamilies | memtable_flush_period_in_ms |    
           1 |       null |          null |       null |        regular |       
                                                                            
org.apache.cassandra.db.marshal.Int32Type
          system |     schema_columnfamilies |    min_compaction_threshold |    
           1 |       null |          null |       null |        regular |       
                                                                            
org.apache.cassandra.db.marshal.Int32Type
          system |     schema_columnfamilies |          min_index_interval |    
           1 |       null |          null |       null |        regular |       
                                                                            
org.apache.cassandra.db.marshal.Int32Type
          system |     schema_columnfamilies |          read_repair_chance |    
           1 |       null |          null |       null |        regular |       
                                                                           
org.apache.cassandra.db.marshal.DoubleType
          system |     schema_columnfamilies |           speculative_retry |    
           1 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |     schema_columnfamilies |               subcomparator |    
           1 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |     schema_columnfamilies |                        type |    
           1 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |     schema_columnfamilies |                 value_alias |    
           1 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |            schema_columns |                 column_name |    
           1 |       null |          null |       null | clustering_key |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |            schema_columns |           columnfamily_name |    
           0 |       null |          null |       null | clustering_key |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |            schema_columns |             component_index |    
           2 |       null |          null |       null |        regular |       
                                                                            
org.apache.cassandra.db.marshal.Int32Type
          system |            schema_columns |                  index_name |    
           2 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |            schema_columns |               index_options |    
           2 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |            schema_columns |                  index_type |    
           2 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |            schema_columns |               keyspace_name |    
        null |       null |          null |       null |  partition_key |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |            schema_columns |                        type |    
           2 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |            schema_columns |                   validator |    
           2 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |          schema_keyspaces |              durable_writes |    
        null |       null |          null |       null |        regular |       
                                                                          
org.apache.cassandra.db.marshal.BooleanType
          system |          schema_keyspaces |               keyspace_name |    
        null |       null |          null |       null |  partition_key |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |          schema_keyspaces |              strategy_class |    
        null |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |          schema_keyspaces |            strategy_options |    
        null |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |           schema_triggers |           columnfamily_name |    
           0 |       null |          null |       null | clustering_key |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |           schema_triggers |               keyspace_name |    
        null |       null |          null |       null |  partition_key |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |           schema_triggers |                trigger_name |    
           1 |       null |          null |       null | clustering_key |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |           schema_triggers |             trigger_options |    
           2 |       null |          null |       null |        regular |  
org.apache.cassandra.db.marshal.MapType(org.apache.cassandra.db.marshal.UTF8Type,org.apache.cassandra.db.marshal.UTF8Type)
          system |          schema_usertypes |                 field_names |    
           1 |       null |          null |       null |        regular |       
                                   
org.apache.cassandra.db.marshal.ListType(org.apache.cassandra.db.marshal.UTF8Type)
          system |          schema_usertypes |                 field_types |    
           1 |       null |          null |       null |        regular |       
                                   
org.apache.cassandra.db.marshal.ListType(org.apache.cassandra.db.marshal.UTF8Type)
          system |          schema_usertypes |               keyspace_name |    
        null |       null |          null |       null |  partition_key |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |          schema_usertypes |                   type_name |    
           0 |       null |          null |       null | clustering_key |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |          sstable_activity |           columnfamily_name |    
           1 |       null |          null |       null |  partition_key |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |          sstable_activity |                  generation |    
           2 |       null |          null |       null |  partition_key |       
                                                                            
org.apache.cassandra.db.marshal.Int32Type
          system |          sstable_activity |               keyspace_name |    
           0 |       null |          null |       null |  partition_key |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
          system |          sstable_activity |                   rate_120m |    
           0 |       null |          null |       null |        regular |       
                                                                           
org.apache.cassandra.db.marshal.DoubleType
          system |          sstable_activity |                    rate_15m |    
           0 |       null |          null |       null |        regular |       
                                                                           
org.apache.cassandra.db.marshal.DoubleType
   system_traces |                    events |                    activity |    
           1 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
   system_traces |                    events |                    event_id |    
           0 |       null |          null |       null | clustering_key |       
                                                                         
org.apache.cassandra.db.marshal.TimeUUIDType
   system_traces |                    events |                  session_id |    
        null |       null |          null |       null |  partition_key |       
                                                                             
org.apache.cassandra.db.marshal.UUIDType
   system_traces |                    events |                      source |    
           1 |       null |          null |       null |        regular |       
                                                                      
org.apache.cassandra.db.marshal.InetAddressType
   system_traces |                    events |              source_elapsed |    
           1 |       null |          null |       null |        regular |       
                                                                            
org.apache.cassandra.db.marshal.Int32Type
   system_traces |                    events |                      thread |    
           1 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
   system_traces |                  sessions |                 coordinator |    
           0 |       null |          null |       null |        regular |       
                                                                      
org.apache.cassandra.db.marshal.InetAddressType
   system_traces |                  sessions |                    duration |    
           0 |       null |          null |       null |        regular |       
                                                                            
org.apache.cassandra.db.marshal.Int32Type
   system_traces |                  sessions |                  parameters |    
           0 |       null |          null |       null |        regular |  
org.apache.cassandra.db.marshal.MapType(org.apache.cassandra.db.marshal.UTF8Type,org.apache.cassandra.db.marshal.UTF8Type)
   system_traces |                  sessions |                     request |    
           0 |       null |          null |       null |        regular |       
                                                                             
org.apache.cassandra.db.marshal.UTF8Type
   system_traces |                  sessions |                  session_id |    
        null |       null |          null |       null |  partition_key |       
                                                                             
org.apache.cassandra.db.marshal.UUIDType
   system_traces |                  sessions |                  started_at |    
           0 |       null |          null |       null |        regular |       
                                                                        
org.apache.cassandra.db.marshal.TimestampType

(166 rows)


> cqlsh "DESCRIBE KEYSPACES;" returns empty after upgrade
> -------------------------------------------------------
>
>                 Key: CASSANDRA-8012
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8012
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Tools
>         Environment: cassandra 2.1.0 
>            Reporter: Shawn Zhou
>              Labels: cqlsh
>
> after upgrade from 2.0.7 to 2.1.0
> run cqlsh  "DESCRIBE KEYSPACES;" returns empty result;
> query individual table does return data;
> See below:
> {noformat}
> [root@dc1-stg-cassandra-08 cassandra]# cqlsh 
> dc1-stg-cassandra-08.dc01.revsci.net -k as_user_segment
> Connected to Stage Cluster at dc1-stg-cassandra-08.dc01.revsci.net:9042.
> [cqlsh 5.0.1 | Cassandra 2.1.0 | CQL spec 3.2.0 | Native protocol v3]
> Use HELP for help.
> cqlsh:as_user_segment> DESCRIBE KEYSPACES;
> <empty>
> cqlsh:as_user_segment>  select * from user_segments_blob where id = 
> '8e6090087fc1a7591a99dc4cb744ac43';
>  id                               | segments
> ----------------------------------+------------------------------------------------------------------------------------
>  8e6090087fc1a7591a99dc4cb744ac43 | 
> 0x94160000b0150000911d00003b0e0000211a0000ee22000072160000ab1c0000df0f000042040000
> (1 rows)
> {noformat}



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