[
https://issues.apache.org/jira/browse/CASSANDRA-6179?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13800731#comment-13800731
]
J. Ryan Earl edited comment on CASSANDRA-6179 at 10/21/13 3:31 PM:
-------------------------------------------------------------------
'nodetool cfstats' below:
{noformat}
[jre@cassandra5 ~]$ nodetool cfstats
Keyspace: system_traces
Read Count: 16
Read Latency: 1.5970625 ms.
Write Count: 5171
Write Latency: 0.06117172693869658 ms.
Pending Tasks: 0
Table: sessions
SSTable count: 0
Space used (live), bytes: 0
Space used (total), bytes: 0
SSTable Compression Ratio: 0.0
Number of keys (estimate): 0
Memtable cell count: 455
Memtable data size, bytes: 255170
Memtable switch count: 0
Read count: 8
Read latency, micros: 0.179 ms.
Write count: 158
Write latency, micros: 0.041 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 0
Compacted partition minimum size, bytes: 0
Compacted partition maximum size, bytes: 0
Compacted partition mean size, bytes: 0
Table: events
SSTable count: 0
Space used (live), bytes: 0
Space used (total), bytes: 0
SSTable Compression Ratio: 0.0
Number of keys (estimate): 0
Memtable cell count: 20000
Memtable data size, bytes: 1048576
Memtable switch count: 0
Read count: 8
Read latency, micros: 3.016 ms.
Write count: 5013
Write latency, micros: 0.062 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 0
Compacted partition minimum size, bytes: 0
Compacted partition maximum size, bytes: 0
Compacted partition mean size, bytes: 0
----------------
Keyspace: VcellsPolishedData
Read Count: 0
Read Latency: NaN ms.
Write Count: 0
Write Latency: NaN ms.
Pending Tasks: 0
Table: vcells_polished_data
SSTable count: 0
Space used (live), bytes: 0
Space used (total), bytes: 0
SSTable Compression Ratio: 0.0
Number of keys (estimate): 0
Memtable cell count: 0
Memtable data size, bytes: 0
Memtable switch count: 0
Read count: 0
Read latency, micros: NaN ms.
Write count: 0
Write latency, micros: NaN ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 0
Compacted partition minimum size, bytes: 0
Compacted partition maximum size, bytes: 0
Compacted partition mean size, bytes: 0
----------------
Keyspace: system
Read Count: 502538
Read Latency: 0.337618096541953 ms.
Write Count: 1063
Write Latency: 0.19078080903104422 ms.
Pending Tasks: 0
Table: NodeIdInfo
SSTable count: 0
Space used (live), bytes: 0
Space used (total), bytes: 0
SSTable Compression Ratio: 0.0
Number of keys (estimate): 0
Memtable cell count: 0
Memtable data size, bytes: 0
Memtable switch count: 0
Read count: 0
Read latency, micros: NaN ms.
Write count: 0
Write latency, micros: NaN ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 0
Compacted partition minimum size, bytes: 0
Compacted partition maximum size, bytes: 0
Compacted partition mean size, bytes: 0
Table: batchlog
SSTable count: 0
Space used (live), bytes: 0
Space used (total), bytes: 0
SSTable Compression Ratio: 0.0
Number of keys (estimate): 0
Memtable cell count: 0
Memtable data size, bytes: 0
Memtable switch count: 0
Read count: 0
Read latency, micros: NaN ms.
Write count: 0
Write latency, micros: NaN ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 0
Compacted partition minimum size, bytes: 0
Compacted partition maximum size, bytes: 0
Compacted partition mean size, bytes: 0
Table: hints
SSTable count: 1
Space used (live), bytes: 37070
Space used (total), bytes: 37766
SSTable Compression Ratio: 0.34898362817272827
Number of keys (estimate): 128
Memtable cell count: 0
Memtable data size, bytes: 0
Memtable switch count: 1
Read count: 8
Read latency, micros: 0.199 ms.
Write count: 64
Write latency, micros: 0.064 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 336
Compacted partition minimum size, bytes: 88149
Compacted partition maximum size, bytes: 105778
Compacted partition mean size, bytes: 105778
Table: schema_columns
SSTable count: 2
Space used (live), bytes: 26224
Space used (total), bytes: 33885
SSTable Compression Ratio: 0.20573152682760049
Number of keys (estimate): 256
Memtable cell count: 0
Memtable data size, bytes: 0
Memtable switch count: 37
Read count: 221301
Read latency, micros: 0.347 ms.
Write count: 139
Write latency, micros: 0.288 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 1320
Compacted partition minimum size, bytes: 1332
Compacted partition maximum size, bytes: 29521
Compacted partition mean size, bytes: 4895
Table: peer_events
SSTable count: 1
Space used (live), bytes: 5828
Space used (total), bytes: 5828
SSTable Compression Ratio: 0.3692434210526316
Number of keys (estimate): 128
Memtable cell count: 0
Memtable data size, bytes: 0
Memtable switch count: 1
Read count: 0
Read latency, micros: NaN ms.
Write count: 37
Write latency, micros: 0.271 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 16
Compacted partition minimum size, bytes: 643
Compacted partition maximum size, bytes: 1109
Compacted partition mean size, bytes: 935
Table: paxos
SSTable count: 0
Space used (live), bytes: 0
Space used (total), bytes: 0
SSTable Compression Ratio: 0.0
Number of keys (estimate): 0
Memtable cell count: 0
Memtable data size, bytes: 0
Memtable switch count: 0
Read count: 0
Read latency, micros: NaN ms.
Write count: 0
Write latency, micros: NaN ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 0
Compacted partition minimum size, bytes: 0
Compacted partition maximum size, bytes: 0
Compacted partition mean size, bytes: 0
Table: schema_keyspaces
SSTable count: 2
Space used (live), bytes: 12311
Space used (total), bytes: 15857
SSTable Compression Ratio: 0.33088662790697676
Number of keys (estimate): 256
Memtable cell count: 0
Memtable data size, bytes: 0
Memtable switch count: 18
Read count: 2
Read latency, micros: 0.529 ms.
Write count: 91
Write latency, micros: 0.051 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 1320
Compacted partition minimum size, bytes: 150
Compacted partition maximum size, bytes: 215
Compacted partition mean size, bytes: 213
Table: peers
SSTable count: 2
Space used (live), bytes: 36210
Space used (total), bytes: 37570
SSTable Compression Ratio: 0.39710715688810955
Number of keys (estimate): 256
Memtable cell count: 52
Memtable data size, bytes: 12737
Memtable switch count: 14
Read count: 6
Read latency, micros: 3.320 ms.
Write count: 269
Write latency, micros: 0.103 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 1320
Compacted partition minimum size, bytes: 73
Compacted partition maximum size, bytes: 14237
Compacted partition mean size, bytes: 7161
Table: schema_triggers
SSTable count: 0
Space used (live), bytes: 0
Space used (total), bytes: 1997
SSTable Compression Ratio: 0.0
Number of keys (estimate): 0
Memtable cell count: 0
Memtable data size, bytes: 0
Memtable switch count: 11
Read count: 130
Read latency, micros: 0.101 ms.
Write count: 36
Write latency, micros: 0.068 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 0
Compacted partition minimum size, bytes: 0
Compacted partition maximum size, bytes: 0
Compacted partition mean size, bytes: 0
Table: range_xfers
SSTable count: 0
Space used (live), bytes: 0
Space used (total), bytes: 0
SSTable Compression Ratio: 0.0
Number of keys (estimate): 0
Memtable cell count: 0
Memtable data size, bytes: 0
Memtable switch count: 0
Read count: 0
Read latency, micros: NaN ms.
Write count: 0
Write latency, micros: NaN ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 0
Compacted partition minimum size, bytes: 0
Compacted partition maximum size, bytes: 0
Compacted partition mean size, bytes: 0
Table: compactions_in_progress
SSTable count: 2
Space used (live), bytes: 10927
Space used (total), bytes: 44335
SSTable Compression Ratio: 0.9089015151515152
Number of keys (estimate): 256
Memtable cell count: 0
Memtable data size, bytes: 0
Memtable switch count: 220
Read count: 0
Read latency, micros: NaN ms.
Write count: 220
Write latency, micros: 0.262 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 1312
Compacted partition minimum size, bytes: 30
Compacted partition maximum size, bytes: 310
Compacted partition mean size, bytes: 104
Table: local
SSTable count: 1
Space used (live), bytes: 11687
Space used (total), bytes: 14758
SSTable Compression Ratio: 0.46092184368737477
Number of keys (estimate): 128
Memtable cell count: 8
Memtable data size, bytes: 520
Memtable switch count: 28
Read count: 43
Read latency, micros: 5.012 ms.
Write count: 63
Write latency, micros: 0.300 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 1296
Compacted partition minimum size, bytes: 11865
Compacted partition maximum size, bytes: 14237
Compacted partition mean size, bytes: 14237
Table: schema_columnfamilies
SSTable count: 1
Space used (live), bytes: 17411
Space used (total), bytes: 26387
SSTable Compression Ratio: 0.20519161754588222
Number of keys (estimate): 128
Memtable cell count: 0
Memtable data size, bytes: 0
Memtable switch count: 42
Read count: 281047
Read latency, micros: 0.329 ms.
Write count: 144
Write latency, micros: 0.260 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 1296
Compacted partition minimum size, bytes: 1598
Compacted partition maximum size, bytes: 24601
Compacted partition mean size, bytes: 6360
Table: IndexInfo
SSTable count: 1
Space used (live), bytes: 4732
Space used (total), bytes: 4732
SSTable Compression Ratio: 0.9322033898305084
Number of keys (estimate): 128
Memtable cell count: 0
Memtable data size, bytes: 0
Memtable switch count: 0
Read count: 1
Read latency, micros: 4.864 ms.
Write count: 0
Write latency, micros: NaN ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 16
Compacted partition minimum size, bytes: 51
Compacted partition maximum size, bytes: 60
Compacted partition mean size, bytes: 60
----------------
Keyspace: searchapi_dsp_approved_feed_vitalii
Read Count: 0
Read Latency: NaN ms.
Write Count: 573891
Write Latency: 0.033150019777274775 ms.
Pending Tasks: 0
Table: 20131009_203006_1381343406
SSTable count: 4
Space used (live), bytes: 1157275045
Space used (total), bytes: 1157416736
SSTable Compression Ratio: 0.35243424641349497
Number of keys (estimate): 574208
Memtable cell count: 0
Memtable data size, bytes: 0
Memtable switch count: 13
Read count: 0
Read latency, micros: NaN ms.
Write count: 573891
Write latency, micros: NaN ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 720328
Compacted partition minimum size, bytes: 1917
Compacted partition maximum size, bytes: 17084
Compacted partition mean size, bytes: 6085
----------------
Keyspace: searchapi_dsp_approved_feed_alpha
Read Count: 99067
Read Latency: 0.7340010699829409 ms.
Write Count: 3763071
Write Latency: 0.026836108858961205 ms.
Pending Tasks: 0
Table: 20131009_203006_1381343406
SSTable count: 22
SSTables in each level: [0, 0, 22, 0, 0, 0, 0, 0, 0]
Space used (live), bytes: 3623280554
Space used (total), bytes: 3624526506
SSTable Compression Ratio: 0.3556069099894895
Number of keys (estimate): 1794560
Memtable cell count: 0
Memtable data size, bytes: 0
Memtable switch count: 36
Read count: 81943
Read latency, micros: NaN ms.
Write count: 1793104
Write latency, micros: NaN ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 2349952
Compacted partition minimum size, bytes: 1917
Compacted partition maximum size, bytes: 17084
Compacted partition mean size, bytes: 6121
Table: 20130921_004042_1379716842
SSTable count: 5
Space used (live), bytes: 3892005641
Space used (total), bytes: 3892920405
SSTable Compression Ratio: 0.35255558750057353
Number of keys (estimate): 1970304
Memtable cell count: 0
Memtable data size, bytes: 0
Memtable switch count: 39
Read count: 17124
Read latency, micros: NaN ms.
Write count: 1969967
Write latency, micros: NaN ms.
Pending tasks: 0
Bloom filter false positives: 350
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 2465216
Compacted partition minimum size, bytes: 1917
Compacted partition maximum size, bytes: 17084
Compacted partition mean size, bytes: 6036
----------------
Keyspace: vastre
Read Count: 5535
Read Latency: 6.6911300813008125 ms.
Write Count: 2573884
Write Latency: 0.15226749806906606 ms.
Pending Tasks: 0
Table: inventory
SSTable count: 11
Space used (live), bytes: 6049990037
Space used (total), bytes: 6050134884
SSTable Compression Ratio: 0.35825903710088336
Number of keys (estimate): 5091584
Memtable cell count: 367999
Memtable data size, bytes: 20971520
Memtable switch count: 11
Read count: 5535
Read latency, micros: NaN ms.
Write count: 1286985
Write latency, micros: NaN ms.
Pending tasks: 0
Bloom filter false positives: 194
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 8590072
Compacted partition minimum size, bytes: 150
Compacted partition maximum size, bytes: 219342
Compacted partition mean size, bytes: 2453
Table (index): inventory.inventoryUID
SSTable count: 4
Space used (live), bytes: 325158555
Space used (total), bytes: 325542657
SSTable Compression Ratio: 0.5301921528572615
Number of keys (estimate): 2591488
Memtable cell count: 19653
Memtable data size, bytes: 1048576
Memtable switch count: 0
Read count: 0
Read latency, micros: NaN ms.
Write count: 1286899
Write latency, micros: 0.029 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 6365816
Compacted partition minimum size, bytes: 73
Compacted partition maximum size, bytes: 2816159
Compacted partition mean size, bytes: 139
----------------
Keyspace: TestVcellsPolishedData
Read Count: 168
Read Latency: 0.8543928571428571 ms.
Write Count: 753
Write Latency: 2.4579628154050464 ms.
Pending Tasks: 0
Table: test_vcells_polished_data
SSTable count: 4
Space used (live), bytes: 470222414
Space used (total), bytes: 470223694
SSTable Compression Ratio: 0.0
Number of keys (estimate): 53760
Memtable cell count: 30
Memtable data size, bytes: 110682
Memtable switch count: 9
Read count: 168
Read latency, micros: NaN ms.
Write count: 753
Write latency, micros: NaN ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 102088
Compacted partition minimum size, bytes: 3312
Compacted partition maximum size, bytes: 1629722
Compacted partition mean size, bytes: 16558
----------------
Keyspace: searchapi_dsp_approved_feed_test
Read Count: 154
Read Latency: 1.9904415584415585 ms.
Write Count: 644079
Write Latency: 0.025757469192443785 ms.
Pending Tasks: 0
Table: 20131011_182853_1381508933
SSTable count: 4
Space used (live), bytes: 1237696525
Space used (total), bytes: 1237836296
SSTable Compression Ratio: 0.35361982682795234
Number of keys (estimate): 613248
Memtable cell count: 31102
Memtable data size, bytes: 170821647
Memtable switch count: 13
Read count: 154
Read latency, micros: NaN ms.
Write count: 644079
Write latency, micros: NaN ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 769040
Compacted partition minimum size, bytes: 1917
Compacted partition maximum size, bytes: 17084
Compacted partition mean size, bytes: 6133
----------------
Keyspace: OpsCenter
Read Count: 1075487
Read Latency: 0.1405984033279807 ms.
Write Count: 14137149
Write Latency: 0.05747777009353159 ms.
Pending Tasks: 0
Table: settings
SSTable count: 1
Space used (live), bytes: 4732
Space used (total), bytes: 4732
SSTable Compression Ratio: 0.9629629629629629
Number of keys (estimate): 128
Memtable cell count: 0
Memtable data size, bytes: 0
Memtable switch count: 0
Read count: 0
Read latency, micros: NaN ms.
Write count: 0
Write latency, micros: NaN ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 16
Compacted partition minimum size, bytes: 51
Compacted partition maximum size, bytes: 60
Compacted partition mean size, bytes: 60
Table: rollups60
SSTable count: 2
Space used (live), bytes: 285712246
Space used (total), bytes: 285739623
SSTable Compression Ratio: 0.549293451388619
Number of keys (estimate): 1408
Memtable cell count: 3216865
Memtable data size, bytes: 26214400
Memtable switch count: 60
Read count: 887875
Read latency, micros: 0.150 ms.
Write count: 9892918
Write latency, micros: 0.038 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 6912
Compacted partition minimum size, bytes: 125
Compacted partition maximum size, bytes: 943127
Compacted partition mean size, bytes: 370808
Table: rollups7200
SSTable count: 1
Space used (live), bytes: 2796816
Space used (total), bytes: 2805285
SSTable Compression Ratio: 0.46836366183323996
Number of keys (estimate): 768
Memtable cell count: 26426
Memtable data size, bytes: 1048576
Memtable switch count: 10
Read count: 0
Read latency, micros: NaN ms.
Write count: 82660
Write latency, micros: 0.025 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 2096
Compacted partition minimum size, bytes: 311
Compacted partition maximum size, bytes: 11864
Compacted partition mean size, bytes: 8688
Table: rollups86400
SSTable count: 1
Space used (live), bytes: 295399
Space used (total), bytes: 299204
SSTable Compression Ratio: 0.4900703646819302
Number of keys (estimate): 768
Memtable cell count: 2328
Memtable data size, bytes: 1048576
Memtable switch count: 5
Read count: 0
Read latency, micros: NaN ms.
Write count: 6652
Write latency, micros: 0.018 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 2096
Compacted partition minimum size, bytes: 125
Compacted partition maximum size, bytes: 1109
Compacted partition mean size, bytes: 850
Table: pdps
SSTable count: 2
Space used (live), bytes: 29363
Space used (total), bytes: 31131
SSTable Compression Ratio: 0.2850374290599562
Number of keys (estimate): 256
Memtable cell count: 720944
Memtable data size, bytes: 58720256
Memtable switch count: 14
Read count: 0
Read latency, micros: NaN ms.
Write count: 2176704
Write latency, micros: 0.170 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 1312
Compacted partition minimum size, bytes: 29522
Compacted partition maximum size, bytes: 35425
Compacted partition mean size, bytes: 35425
Table: events_timeline
SSTable count: 1
Space used (live), bytes: 6652
Space used (total), bytes: 6762
SSTable Compression Ratio: 0.6203007518796992
Number of keys (estimate): 128
Memtable cell count: 0
Memtable data size, bytes: 0
Memtable switch count: 1
Read count: 0
Read latency, micros: NaN ms.
Write count: 1
Write latency, micros: 0.302 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 1296
Compacted partition minimum size, bytes: 73
Compacted partition maximum size, bytes: 1109
Compacted partition mean size, bytes: 598
Table: rollups300
SSTable count: 4
Space used (live), bytes: 62838990
Space used (total), bytes: 62847005
SSTable Compression Ratio: 0.40016431824415366
Number of keys (estimate): 2304
Memtable cell count: 643177
Memtable data size, bytes: 10485760
Memtable switch count: 18
Read count: 177700
Read latency, micros: 0.060 ms.
Write count: 1978194
Write latency, micros: 0.032 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 8880
Compacted partition minimum size, bytes: 61
Compacted partition maximum size, bytes: 263210
Compacted partition mean size, bytes: 54206
Table: events
SSTable count: 4
Space used (live), bytes: 31275
Space used (total), bytes: 31391
SSTable Compression Ratio: 0.4495362218092923
Number of keys (estimate): 512
Memtable cell count: 6
Memtable data size, bytes: 1790
Memtable switch count: 4
Read count: 9912
Read latency, micros: 0.721 ms.
Write count: 20
Write latency, micros: 0.219 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 2632
Compacted partition minimum size, bytes: 180
Compacted partition maximum size, bytes: 446
Compacted partition mean size, bytes: 250
----------------
{noformat}
'nodetool info' taken within a few seconds:
{noformat}
[jre@cassandra5 ~]$ nodetool info
Token : (invoke with -T/--tokens to see all 256 tokens)
ID : 72680375-d5b8-49ae-a33b-b99fec3009d3
Gossip active : true
Thrift active : true
Native Transport active: true
Load : 15.63 GB
Generation No : 1381357639
Uptime (seconds) : 1011643
Heap Memory (MB) : 3723.10 / 11980.81
Data Center : Oakland
Rack : C7.10.11
Exceptions : 118
Key Cache : size 3380824 (bytes), capacity 536870912 (bytes), 2198265
hits, 2208066 requests, 0.981 recent hit rate, 7200 save period in seconds
Row Cache : size 17276702 (bytes), capacity 268435456 (bytes), 52996
hits, 55926 requests, NaN recent hit rate, 0 save period in seconds
{noformat}
was (Author: jre):
'nodetool cfstats' below:
{{noformat}}
[jre@cassandra5 ~]$ nodetool cfstats
Keyspace: system_traces
Read Count: 16
Read Latency: 1.5970625 ms.
Write Count: 5171
Write Latency: 0.06117172693869658 ms.
Pending Tasks: 0
Table: sessions
SSTable count: 0
Space used (live), bytes: 0
Space used (total), bytes: 0
SSTable Compression Ratio: 0.0
Number of keys (estimate): 0
Memtable cell count: 455
Memtable data size, bytes: 255170
Memtable switch count: 0
Read count: 8
Read latency, micros: 0.179 ms.
Write count: 158
Write latency, micros: 0.041 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 0
Compacted partition minimum size, bytes: 0
Compacted partition maximum size, bytes: 0
Compacted partition mean size, bytes: 0
Table: events
SSTable count: 0
Space used (live), bytes: 0
Space used (total), bytes: 0
SSTable Compression Ratio: 0.0
Number of keys (estimate): 0
Memtable cell count: 20000
Memtable data size, bytes: 1048576
Memtable switch count: 0
Read count: 8
Read latency, micros: 3.016 ms.
Write count: 5013
Write latency, micros: 0.062 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 0
Compacted partition minimum size, bytes: 0
Compacted partition maximum size, bytes: 0
Compacted partition mean size, bytes: 0
----------------
Keyspace: VcellsPolishedData
Read Count: 0
Read Latency: NaN ms.
Write Count: 0
Write Latency: NaN ms.
Pending Tasks: 0
Table: vcells_polished_data
SSTable count: 0
Space used (live), bytes: 0
Space used (total), bytes: 0
SSTable Compression Ratio: 0.0
Number of keys (estimate): 0
Memtable cell count: 0
Memtable data size, bytes: 0
Memtable switch count: 0
Read count: 0
Read latency, micros: NaN ms.
Write count: 0
Write latency, micros: NaN ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 0
Compacted partition minimum size, bytes: 0
Compacted partition maximum size, bytes: 0
Compacted partition mean size, bytes: 0
----------------
Keyspace: system
Read Count: 502538
Read Latency: 0.337618096541953 ms.
Write Count: 1063
Write Latency: 0.19078080903104422 ms.
Pending Tasks: 0
Table: NodeIdInfo
SSTable count: 0
Space used (live), bytes: 0
Space used (total), bytes: 0
SSTable Compression Ratio: 0.0
Number of keys (estimate): 0
Memtable cell count: 0
Memtable data size, bytes: 0
Memtable switch count: 0
Read count: 0
Read latency, micros: NaN ms.
Write count: 0
Write latency, micros: NaN ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 0
Compacted partition minimum size, bytes: 0
Compacted partition maximum size, bytes: 0
Compacted partition mean size, bytes: 0
Table: batchlog
SSTable count: 0
Space used (live), bytes: 0
Space used (total), bytes: 0
SSTable Compression Ratio: 0.0
Number of keys (estimate): 0
Memtable cell count: 0
Memtable data size, bytes: 0
Memtable switch count: 0
Read count: 0
Read latency, micros: NaN ms.
Write count: 0
Write latency, micros: NaN ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 0
Compacted partition minimum size, bytes: 0
Compacted partition maximum size, bytes: 0
Compacted partition mean size, bytes: 0
Table: hints
SSTable count: 1
Space used (live), bytes: 37070
Space used (total), bytes: 37766
SSTable Compression Ratio: 0.34898362817272827
Number of keys (estimate): 128
Memtable cell count: 0
Memtable data size, bytes: 0
Memtable switch count: 1
Read count: 8
Read latency, micros: 0.199 ms.
Write count: 64
Write latency, micros: 0.064 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 336
Compacted partition minimum size, bytes: 88149
Compacted partition maximum size, bytes: 105778
Compacted partition mean size, bytes: 105778
Table: schema_columns
SSTable count: 2
Space used (live), bytes: 26224
Space used (total), bytes: 33885
SSTable Compression Ratio: 0.20573152682760049
Number of keys (estimate): 256
Memtable cell count: 0
Memtable data size, bytes: 0
Memtable switch count: 37
Read count: 221301
Read latency, micros: 0.347 ms.
Write count: 139
Write latency, micros: 0.288 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 1320
Compacted partition minimum size, bytes: 1332
Compacted partition maximum size, bytes: 29521
Compacted partition mean size, bytes: 4895
Table: peer_events
SSTable count: 1
Space used (live), bytes: 5828
Space used (total), bytes: 5828
SSTable Compression Ratio: 0.3692434210526316
Number of keys (estimate): 128
Memtable cell count: 0
Memtable data size, bytes: 0
Memtable switch count: 1
Read count: 0
Read latency, micros: NaN ms.
Write count: 37
Write latency, micros: 0.271 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 16
Compacted partition minimum size, bytes: 643
Compacted partition maximum size, bytes: 1109
Compacted partition mean size, bytes: 935
Table: paxos
SSTable count: 0
Space used (live), bytes: 0
Space used (total), bytes: 0
SSTable Compression Ratio: 0.0
Number of keys (estimate): 0
Memtable cell count: 0
Memtable data size, bytes: 0
Memtable switch count: 0
Read count: 0
Read latency, micros: NaN ms.
Write count: 0
Write latency, micros: NaN ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 0
Compacted partition minimum size, bytes: 0
Compacted partition maximum size, bytes: 0
Compacted partition mean size, bytes: 0
Table: schema_keyspaces
SSTable count: 2
Space used (live), bytes: 12311
Space used (total), bytes: 15857
SSTable Compression Ratio: 0.33088662790697676
Number of keys (estimate): 256
Memtable cell count: 0
Memtable data size, bytes: 0
Memtable switch count: 18
Read count: 2
Read latency, micros: 0.529 ms.
Write count: 91
Write latency, micros: 0.051 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 1320
Compacted partition minimum size, bytes: 150
Compacted partition maximum size, bytes: 215
Compacted partition mean size, bytes: 213
Table: peers
SSTable count: 2
Space used (live), bytes: 36210
Space used (total), bytes: 37570
SSTable Compression Ratio: 0.39710715688810955
Number of keys (estimate): 256
Memtable cell count: 52
Memtable data size, bytes: 12737
Memtable switch count: 14
Read count: 6
Read latency, micros: 3.320 ms.
Write count: 269
Write latency, micros: 0.103 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 1320
Compacted partition minimum size, bytes: 73
Compacted partition maximum size, bytes: 14237
Compacted partition mean size, bytes: 7161
Table: schema_triggers
SSTable count: 0
Space used (live), bytes: 0
Space used (total), bytes: 1997
SSTable Compression Ratio: 0.0
Number of keys (estimate): 0
Memtable cell count: 0
Memtable data size, bytes: 0
Memtable switch count: 11
Read count: 130
Read latency, micros: 0.101 ms.
Write count: 36
Write latency, micros: 0.068 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 0
Compacted partition minimum size, bytes: 0
Compacted partition maximum size, bytes: 0
Compacted partition mean size, bytes: 0
Table: range_xfers
SSTable count: 0
Space used (live), bytes: 0
Space used (total), bytes: 0
SSTable Compression Ratio: 0.0
Number of keys (estimate): 0
Memtable cell count: 0
Memtable data size, bytes: 0
Memtable switch count: 0
Read count: 0
Read latency, micros: NaN ms.
Write count: 0
Write latency, micros: NaN ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 0
Compacted partition minimum size, bytes: 0
Compacted partition maximum size, bytes: 0
Compacted partition mean size, bytes: 0
Table: compactions_in_progress
SSTable count: 2
Space used (live), bytes: 10927
Space used (total), bytes: 44335
SSTable Compression Ratio: 0.9089015151515152
Number of keys (estimate): 256
Memtable cell count: 0
Memtable data size, bytes: 0
Memtable switch count: 220
Read count: 0
Read latency, micros: NaN ms.
Write count: 220
Write latency, micros: 0.262 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 1312
Compacted partition minimum size, bytes: 30
Compacted partition maximum size, bytes: 310
Compacted partition mean size, bytes: 104
Table: local
SSTable count: 1
Space used (live), bytes: 11687
Space used (total), bytes: 14758
SSTable Compression Ratio: 0.46092184368737477
Number of keys (estimate): 128
Memtable cell count: 8
Memtable data size, bytes: 520
Memtable switch count: 28
Read count: 43
Read latency, micros: 5.012 ms.
Write count: 63
Write latency, micros: 0.300 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 1296
Compacted partition minimum size, bytes: 11865
Compacted partition maximum size, bytes: 14237
Compacted partition mean size, bytes: 14237
Table: schema_columnfamilies
SSTable count: 1
Space used (live), bytes: 17411
Space used (total), bytes: 26387
SSTable Compression Ratio: 0.20519161754588222
Number of keys (estimate): 128
Memtable cell count: 0
Memtable data size, bytes: 0
Memtable switch count: 42
Read count: 281047
Read latency, micros: 0.329 ms.
Write count: 144
Write latency, micros: 0.260 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 1296
Compacted partition minimum size, bytes: 1598
Compacted partition maximum size, bytes: 24601
Compacted partition mean size, bytes: 6360
Table: IndexInfo
SSTable count: 1
Space used (live), bytes: 4732
Space used (total), bytes: 4732
SSTable Compression Ratio: 0.9322033898305084
Number of keys (estimate): 128
Memtable cell count: 0
Memtable data size, bytes: 0
Memtable switch count: 0
Read count: 1
Read latency, micros: 4.864 ms.
Write count: 0
Write latency, micros: NaN ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 16
Compacted partition minimum size, bytes: 51
Compacted partition maximum size, bytes: 60
Compacted partition mean size, bytes: 60
----------------
Keyspace: searchapi_dsp_approved_feed_vitalii
Read Count: 0
Read Latency: NaN ms.
Write Count: 573891
Write Latency: 0.033150019777274775 ms.
Pending Tasks: 0
Table: 20131009_203006_1381343406
SSTable count: 4
Space used (live), bytes: 1157275045
Space used (total), bytes: 1157416736
SSTable Compression Ratio: 0.35243424641349497
Number of keys (estimate): 574208
Memtable cell count: 0
Memtable data size, bytes: 0
Memtable switch count: 13
Read count: 0
Read latency, micros: NaN ms.
Write count: 573891
Write latency, micros: NaN ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 720328
Compacted partition minimum size, bytes: 1917
Compacted partition maximum size, bytes: 17084
Compacted partition mean size, bytes: 6085
----------------
Keyspace: searchapi_dsp_approved_feed_alpha
Read Count: 99067
Read Latency: 0.7340010699829409 ms.
Write Count: 3763071
Write Latency: 0.026836108858961205 ms.
Pending Tasks: 0
Table: 20131009_203006_1381343406
SSTable count: 22
SSTables in each level: [0, 0, 22, 0, 0, 0, 0, 0, 0]
Space used (live), bytes: 3623280554
Space used (total), bytes: 3624526506
SSTable Compression Ratio: 0.3556069099894895
Number of keys (estimate): 1794560
Memtable cell count: 0
Memtable data size, bytes: 0
Memtable switch count: 36
Read count: 81943
Read latency, micros: NaN ms.
Write count: 1793104
Write latency, micros: NaN ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 2349952
Compacted partition minimum size, bytes: 1917
Compacted partition maximum size, bytes: 17084
Compacted partition mean size, bytes: 6121
Table: 20130921_004042_1379716842
SSTable count: 5
Space used (live), bytes: 3892005641
Space used (total), bytes: 3892920405
SSTable Compression Ratio: 0.35255558750057353
Number of keys (estimate): 1970304
Memtable cell count: 0
Memtable data size, bytes: 0
Memtable switch count: 39
Read count: 17124
Read latency, micros: NaN ms.
Write count: 1969967
Write latency, micros: NaN ms.
Pending tasks: 0
Bloom filter false positives: 350
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 2465216
Compacted partition minimum size, bytes: 1917
Compacted partition maximum size, bytes: 17084
Compacted partition mean size, bytes: 6036
----------------
Keyspace: vastre
Read Count: 5535
Read Latency: 6.6911300813008125 ms.
Write Count: 2573884
Write Latency: 0.15226749806906606 ms.
Pending Tasks: 0
Table: inventory
SSTable count: 11
Space used (live), bytes: 6049990037
Space used (total), bytes: 6050134884
SSTable Compression Ratio: 0.35825903710088336
Number of keys (estimate): 5091584
Memtable cell count: 367999
Memtable data size, bytes: 20971520
Memtable switch count: 11
Read count: 5535
Read latency, micros: NaN ms.
Write count: 1286985
Write latency, micros: NaN ms.
Pending tasks: 0
Bloom filter false positives: 194
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 8590072
Compacted partition minimum size, bytes: 150
Compacted partition maximum size, bytes: 219342
Compacted partition mean size, bytes: 2453
Table (index): inventory.inventoryUID
SSTable count: 4
Space used (live), bytes: 325158555
Space used (total), bytes: 325542657
SSTable Compression Ratio: 0.5301921528572615
Number of keys (estimate): 2591488
Memtable cell count: 19653
Memtable data size, bytes: 1048576
Memtable switch count: 0
Read count: 0
Read latency, micros: NaN ms.
Write count: 1286899
Write latency, micros: 0.029 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 6365816
Compacted partition minimum size, bytes: 73
Compacted partition maximum size, bytes: 2816159
Compacted partition mean size, bytes: 139
----------------
Keyspace: TestVcellsPolishedData
Read Count: 168
Read Latency: 0.8543928571428571 ms.
Write Count: 753
Write Latency: 2.4579628154050464 ms.
Pending Tasks: 0
Table: test_vcells_polished_data
SSTable count: 4
Space used (live), bytes: 470222414
Space used (total), bytes: 470223694
SSTable Compression Ratio: 0.0
Number of keys (estimate): 53760
Memtable cell count: 30
Memtable data size, bytes: 110682
Memtable switch count: 9
Read count: 168
Read latency, micros: NaN ms.
Write count: 753
Write latency, micros: NaN ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 102088
Compacted partition minimum size, bytes: 3312
Compacted partition maximum size, bytes: 1629722
Compacted partition mean size, bytes: 16558
----------------
Keyspace: searchapi_dsp_approved_feed_test
Read Count: 154
Read Latency: 1.9904415584415585 ms.
Write Count: 644079
Write Latency: 0.025757469192443785 ms.
Pending Tasks: 0
Table: 20131011_182853_1381508933
SSTable count: 4
Space used (live), bytes: 1237696525
Space used (total), bytes: 1237836296
SSTable Compression Ratio: 0.35361982682795234
Number of keys (estimate): 613248
Memtable cell count: 31102
Memtable data size, bytes: 170821647
Memtable switch count: 13
Read count: 154
Read latency, micros: NaN ms.
Write count: 644079
Write latency, micros: NaN ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 769040
Compacted partition minimum size, bytes: 1917
Compacted partition maximum size, bytes: 17084
Compacted partition mean size, bytes: 6133
----------------
Keyspace: OpsCenter
Read Count: 1075487
Read Latency: 0.1405984033279807 ms.
Write Count: 14137149
Write Latency: 0.05747777009353159 ms.
Pending Tasks: 0
Table: settings
SSTable count: 1
Space used (live), bytes: 4732
Space used (total), bytes: 4732
SSTable Compression Ratio: 0.9629629629629629
Number of keys (estimate): 128
Memtable cell count: 0
Memtable data size, bytes: 0
Memtable switch count: 0
Read count: 0
Read latency, micros: NaN ms.
Write count: 0
Write latency, micros: NaN ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 16
Compacted partition minimum size, bytes: 51
Compacted partition maximum size, bytes: 60
Compacted partition mean size, bytes: 60
Table: rollups60
SSTable count: 2
Space used (live), bytes: 285712246
Space used (total), bytes: 285739623
SSTable Compression Ratio: 0.549293451388619
Number of keys (estimate): 1408
Memtable cell count: 3216865
Memtable data size, bytes: 26214400
Memtable switch count: 60
Read count: 887875
Read latency, micros: 0.150 ms.
Write count: 9892918
Write latency, micros: 0.038 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 6912
Compacted partition minimum size, bytes: 125
Compacted partition maximum size, bytes: 943127
Compacted partition mean size, bytes: 370808
Table: rollups7200
SSTable count: 1
Space used (live), bytes: 2796816
Space used (total), bytes: 2805285
SSTable Compression Ratio: 0.46836366183323996
Number of keys (estimate): 768
Memtable cell count: 26426
Memtable data size, bytes: 1048576
Memtable switch count: 10
Read count: 0
Read latency, micros: NaN ms.
Write count: 82660
Write latency, micros: 0.025 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 2096
Compacted partition minimum size, bytes: 311
Compacted partition maximum size, bytes: 11864
Compacted partition mean size, bytes: 8688
Table: rollups86400
SSTable count: 1
Space used (live), bytes: 295399
Space used (total), bytes: 299204
SSTable Compression Ratio: 0.4900703646819302
Number of keys (estimate): 768
Memtable cell count: 2328
Memtable data size, bytes: 1048576
Memtable switch count: 5
Read count: 0
Read latency, micros: NaN ms.
Write count: 6652
Write latency, micros: 0.018 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 2096
Compacted partition minimum size, bytes: 125
Compacted partition maximum size, bytes: 1109
Compacted partition mean size, bytes: 850
Table: pdps
SSTable count: 2
Space used (live), bytes: 29363
Space used (total), bytes: 31131
SSTable Compression Ratio: 0.2850374290599562
Number of keys (estimate): 256
Memtable cell count: 720944
Memtable data size, bytes: 58720256
Memtable switch count: 14
Read count: 0
Read latency, micros: NaN ms.
Write count: 2176704
Write latency, micros: 0.170 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 1312
Compacted partition minimum size, bytes: 29522
Compacted partition maximum size, bytes: 35425
Compacted partition mean size, bytes: 35425
Table: events_timeline
SSTable count: 1
Space used (live), bytes: 6652
Space used (total), bytes: 6762
SSTable Compression Ratio: 0.6203007518796992
Number of keys (estimate): 128
Memtable cell count: 0
Memtable data size, bytes: 0
Memtable switch count: 1
Read count: 0
Read latency, micros: NaN ms.
Write count: 1
Write latency, micros: 0.302 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 1296
Compacted partition minimum size, bytes: 73
Compacted partition maximum size, bytes: 1109
Compacted partition mean size, bytes: 598
Table: rollups300
SSTable count: 4
Space used (live), bytes: 62838990
Space used (total), bytes: 62847005
SSTable Compression Ratio: 0.40016431824415366
Number of keys (estimate): 2304
Memtable cell count: 643177
Memtable data size, bytes: 10485760
Memtable switch count: 18
Read count: 177700
Read latency, micros: 0.060 ms.
Write count: 1978194
Write latency, micros: 0.032 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 8880
Compacted partition minimum size, bytes: 61
Compacted partition maximum size, bytes: 263210
Compacted partition mean size, bytes: 54206
Table: events
SSTable count: 4
Space used (live), bytes: 31275
Space used (total), bytes: 31391
SSTable Compression Ratio: 0.4495362218092923
Number of keys (estimate): 512
Memtable cell count: 6
Memtable data size, bytes: 1790
Memtable switch count: 4
Read count: 9912
Read latency, micros: 0.721 ms.
Write count: 20
Write latency, micros: 0.219 ms.
Pending tasks: 0
Bloom filter false positives: 0
Bloom filter false ratio: 0.00000
Bloom filter space used, bytes: 2632
Compacted partition minimum size, bytes: 180
Compacted partition maximum size, bytes: 446
Compacted partition mean size, bytes: 250
----------------
{noformat}
'nodetool info' taken within a few seconds:
{noformat}
[jre@cassandra5 ~]$ nodetool info
Token : (invoke with -T/--tokens to see all 256 tokens)
ID : 72680375-d5b8-49ae-a33b-b99fec3009d3
Gossip active : true
Thrift active : true
Native Transport active: true
Load : 15.63 GB
Generation No : 1381357639
Uptime (seconds) : 1011643
Heap Memory (MB) : 3723.10 / 11980.81
Data Center : Oakland
Rack : C7.10.11
Exceptions : 118
Key Cache : size 3380824 (bytes), capacity 536870912 (bytes), 2198265
hits, 2208066 requests, 0.981 recent hit rate, 7200 save period in seconds
Row Cache : size 17276702 (bytes), capacity 268435456 (bytes), 52996
hits, 55926 requests, NaN recent hit rate, 0 save period in seconds
{noformat}
> "Load" calculated in "nodetool info" is strange/inaccurate in JBOD setups
> -------------------------------------------------------------------------
>
> Key: CASSANDRA-6179
> URL: https://issues.apache.org/jira/browse/CASSANDRA-6179
> Project: Cassandra
> Issue Type: Bug
> Environment: JBOD layouts
> Reporter: J. Ryan Earl
> Assignee: Mikhail Stepura
>
> We recently noticed that the storage capacity on Cassandra nodes using JBOD
> layout was returning what looks close to the average data volume size,
> instead of the sum of all JBOD data volumes. It's not exactly an average and
> I haven't had time to dig into the code to see what it's really doing, it's
> like some sort of sample of the JBOD volumes sizes.
> So looking at the JBOD volumes we see:
> {noformat}
> [jre@cassandra2 ~]$ df -h
> Filesystem Size Used Avail Use% Mounted on
> [...]
> /dev/sdc1 1.1T 9.4G 1.1T 1% /data/1
> /dev/sdd1 1.1T 9.2G 1.1T 1% /data/2
> /dev/sde1 1.1T 11G 1.1T 1% /data/3
> /dev/sdf1 1.1T 11G 1.1T 1% /data/4
> /dev/sdg1 1.1T 9.2G 1.1T 1% /data/5
> /dev/sdh1 1.1T 11G 1.1T 1% /data/6
> /dev/sdi1 1.1T 9.8G 1.1T 1% /data/7
> {noformat}
> Looking at 'nodetool info' we see:
> {noformat}
> [jre@cassandra2 ~]$ nodetool info
> Token : (invoke with -T/--tokens to see all 256 tokens)
> ID : 631f0be3-ce52-4eb9-b48b-069fbfdf0a97
> Gossip active : true
> Thrift active : true
> Native Transport active: true
> Load : 10.57 GB
> {noformat}
> So there are 7 disks in a JBOD configuration in this example, the sum should
> be closer to 70G for each node. Maybe we're misinterpreting what this value
> should be, but things like OpsCenter appear to use this "load" value as the
> size of data on the local node, which I expect to be the sum of JBOD volumes.
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