Good idea.
There are two seed nodes:
I see this on one (note 172.16.100.44 is the new node):

DEBUG [CompactionExecutor:1345] 2021-09-10 11:13:49,569 TimeWindowCompactionStrategy.java:129 - TWCS skipping check for fully expired SSTables INFO  [Messaging-EventLoop-3-10] 2021-09-10 11:14:22,810 InboundConnectionInitiator.java:464 - /172.16.100.44:7000(/172.16.100.44:45970)->/172.16.100.253:7000-URGENT_MESSAGES-30a4fd82 messaging connection established, version = 12, framing = LZ4, encryption = unencrypted INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,567 MessagingMetrics.java:206 - GOSSIP_DIGEST_SYN messages were dropped in last 5000 ms: 0 internal and 1 cross node. Mean internal dropped latency: 0 ms and Mean cross-node dropped latency: 15137813 ms INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,567 StatusLogger.java:65 - Pool Name                       Active Pending      Completed   Blocked  All Time Blocked INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,567 StatusLogger.java:69 - ReadStage 0         0        4729810         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,567 StatusLogger.java:69 - CompactionExecutor 0         0         384171         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,567 StatusLogger.java:69 - MutationStage 0         0       14540487         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,568 StatusLogger.java:69 - MemtableReclaimMemory 0         0            316         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,568 StatusLogger.java:69 - PendingRangeCalculator 0         0             11         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,568 StatusLogger.java:69 - GossipStage 0         0        1126031         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,568 StatusLogger.java:69 - SecondaryIndexManagement 0         0              0         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,568 StatusLogger.java:69 - HintsDispatcher 0         0             15         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,568 StatusLogger.java:69 - Native-Transport-Requests 0         0       13286230         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,568 StatusLogger.java:69 - RequestResponseStage 0         0       15724485         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,568 StatusLogger.java:69 - MemtableFlushWriter 0         0            298         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,568 StatusLogger.java:69 - PerDiskMemtableFlushWriter_0 0         0            316         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,568 StatusLogger.java:69 - MemtablePostFlush 0         0            336         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,569 StatusLogger.java:69 - Sampler 0         0              0         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,569 StatusLogger.java:69 - ValidationExecutor 0         0              0         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,569 StatusLogger.java:69 - ViewBuildExecutor 0         0              0         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,569 StatusLogger.java:69 - CacheCleanupExecutor 0         0              0         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,569 StatusLogger.java:79 - CompactionManager                 0 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,570 StatusLogger.java:91 - MessagingService                n/a 0/0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,570 StatusLogger.java:101 - Cache Type Size                 Capacity               KeysToSave INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,570 StatusLogger.java:103 - KeyCache 75539240                104857600                      all INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,570 StatusLogger.java:109 - RowCache 0                        0                      all INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,570 StatusLogger.java:116 - Table                       Memtable ops,data INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,570 StatusLogger.java:119 - system_schema.columns 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,570 StatusLogger.java:119 - system_schema.types 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,570 StatusLogger.java:119 - system_schema.indexes 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,570 StatusLogger.java:119 - system_schema.keyspaces 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,570 StatusLogger.java:119 - system_schema.dropped_columns                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,571 StatusLogger.java:119 - system_schema.aggregates 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,571 StatusLogger.java:119 - system_schema.triggers 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,571 StatusLogger.java:119 - system_schema.tables 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,571 StatusLogger.java:119 - system_schema.views 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,571 StatusLogger.java:119 - system_schema.functions 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,571 StatusLogger.java:119 - system.compaction_history 2,403 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,571 StatusLogger.java:119 - system.IndexInfo 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,571 StatusLogger.java:119 - system.repairs 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,571 StatusLogger.java:119 - system.size_estimates 1625,31346 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,571 StatusLogger.java:119 - system.table_estimates 3250,67852 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,572 StatusLogger.java:119 - system.paxos 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,572 StatusLogger.java:119 - system.built_views 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,572 StatusLogger.java:119 - system.peer_events 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,572 StatusLogger.java:119 - system.peers_v2 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,572 StatusLogger.java:119 - system.peers 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,572 StatusLogger.java:119 - system.peer_events_v2 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,572 StatusLogger.java:119 - system.batches 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,572 StatusLogger.java:119 - system.transferred_ranges 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,572 StatusLogger.java:119 - system.transferred_ranges_v2                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,572 StatusLogger.java:119 - system.view_builds_in_progress                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,572 StatusLogger.java:119 - system.local 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,573 StatusLogger.java:119 - system.sstable_activity 508,8564 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,573 StatusLogger.java:119 - system.available_ranges_v2 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,573 StatusLogger.java:119 - system.available_ranges 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,573 StatusLogger.java:119 - system.prepared_statements 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,573 StatusLogger.java:119 - system_auth.roles 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,573 StatusLogger.java:119 - system_auth.role_members 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,573 StatusLogger.java:119 - system_auth.resource_role_permissons_index                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,573 StatusLogger.java:119 - system_auth.network_permissions                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,573 StatusLogger.java:119 - system_auth.role_permissions                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,573 StatusLogger.java:119 - system_distributed.parent_repair_history                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,574 StatusLogger.java:119 - system_distributed.repair_history                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,574 StatusLogger.java:119 - system_distributed.view_build_status                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,574 StatusLogger.java:119 - reaper_db.node_operations 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,574 StatusLogger.java:119 - reaper_db.repair_run 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,574 StatusLogger.java:119 - reaper_db.repair_run_by_unit                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,574 StatusLogger.java:119 - reaper_db.cluster 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,574 StatusLogger.java:119 - reaper_db.diagnostic_event_subscription                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,574 StatusLogger.java:119 - reaper_db.running_reapers 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,574 StatusLogger.java:119 - reaper_db.node_metrics_v3 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,574 StatusLogger.java:119 - reaper_db.repair_schedule_v1                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,574 StatusLogger.java:119 - reaper_db.repair_unit_v1 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,575 StatusLogger.java:119 - reaper_db.repair_run_by_cluster                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,575 StatusLogger.java:119 - reaper_db.repair_schedule_by_cluster_and_keyspace 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,575 StatusLogger.java:119 - reaper_db.leader 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,575 StatusLogger.java:119 - reaper_db.schema_migration_leader                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,575 StatusLogger.java:119 - reaper_db.running_repairs 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,575 StatusLogger.java:119 - reaper_db.schema_migration 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,575 StatusLogger.java:119 - reaper_db.node_metrics_v1 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,575 StatusLogger.java:119 - reaper_db.repair_run_by_cluster_v2                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,575 StatusLogger.java:119 - reaper_db.snapshot 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,575 StatusLogger.java:119 - system_traces.sessions 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,576 StatusLogger.java:119 - system_traces.events 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,576 StatusLogger.java:119 - doc.doc 71463,9507451 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,576 StatusLogger.java:119 - doc.fieldcounts 719515,2487290 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,576 StatusLogger.java:119 - doc.meta_ftametrics 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,576 StatusLogger.java:119 - doc.parent_child 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,576 StatusLogger.java:119 - doc.blocks 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,576 StatusLogger.java:119 - doc.ds_30 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,576 StatusLogger.java:119 - doc.child_parent 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,576 StatusLogger.java:119 - doc.seq 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,576 StatusLogger.java:119 - doc.doctemp 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,576 StatusLogger.java:119 - doc.ds_21 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,577 StatusLogger.java:119 - doc.extractedmetadata 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,577 StatusLogger.java:119 - doc.datasources 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,577 StatusLogger.java:119 - doc.ds_16 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,577 StatusLogger.java:119 - doc.ordered_fieldcounts 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,577 StatusLogger.java:119 - doc.ds_22 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,577 StatusLogger.java:119 - doc.correlationbuckets 39374,8377095 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,577 StatusLogger.java:119 - doc.ftametrics 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,577 StatusLogger.java:119 - doc.binary_docs 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,577 StatusLogger.java:119 - doc.ordered_metafieldcounts                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,577 StatusLogger.java:119 - doc.ds_27 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,577 StatusLogger.java:119 - doc.correlationdocbuckets 450045,39051043 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,578 StatusLogger.java:119 - doc.ds_29 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,578 StatusLogger.java:119 - doc.ds_32 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,578 StatusLogger.java:119 - doc.ds_31 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,578 StatusLogger.java:119 - doc.correlation 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,578 StatusLogger.java:119 - doc.ds_20 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,578 StatusLogger.java:119 - doc.indexorganize 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,578 StatusLogger.java:119 - doc.binary_data 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,578 StatusLogger.java:119 - doc.origdoc 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,578 StatusLogger.java:119 - doc.test_ds16_ds17 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,578 StatusLogger.java:119 - doc.metafieldcounts 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,579 StatusLogger.java:119 - doc.ds_28 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,579 StatusLogger.java:119 - doc.sourcebuckets 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,579 StatusLogger.java:119 - doc.ds_18 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,579 StatusLogger.java:119 - doc.sourcecorrelationcounts                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,579 StatusLogger.java:119 - doc.ds_17 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:26,579 StatusLogger.java:119 - doc.sourcecorrelation 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,579 MessagingMetrics.java:206 - GOSSIP_DIGEST_SYN messages were dropped in last 5000 ms: 0 internal and 1 cross node. Mean internal dropped latency: 0 ms and Mean cross-node dropped latency: 15137813 ms INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,580 StatusLogger.java:65 - Pool Name                       Active Pending      Completed   Blocked  All Time Blocked INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,580 StatusLogger.java:69 - ReadStage 0         0        4729901         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,580 StatusLogger.java:69 - CompactionExecutor 0         0         384171         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,580 StatusLogger.java:69 - MutationStage 0         0       14540850         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,580 StatusLogger.java:69 - MemtableReclaimMemory 0         0            316         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,580 StatusLogger.java:69 - PendingRangeCalculator 0         0             11         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,580 StatusLogger.java:69 - GossipStage 0         0        1126051         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,581 StatusLogger.java:69 - SecondaryIndexManagement 0         0              0         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,581 StatusLogger.java:69 - HintsDispatcher 0         0             15         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,581 StatusLogger.java:69 - Native-Transport-Requests 0         0       13286521         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,581 StatusLogger.java:69 - RequestResponseStage 0         0       15724799         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,581 StatusLogger.java:69 - MemtableFlushWriter 0         0            298         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,581 StatusLogger.java:69 - PerDiskMemtableFlushWriter_0 0         0            316         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,581 StatusLogger.java:69 - MemtablePostFlush 0         0            336         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,581 StatusLogger.java:69 - Sampler 0         0              0         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,581 StatusLogger.java:69 - ValidationExecutor 0         0              0         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,582 StatusLogger.java:69 - ViewBuildExecutor 0         0              0         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,582 StatusLogger.java:69 - CacheCleanupExecutor 0         0              0         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,582 StatusLogger.java:79 - CompactionManager                 0 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,582 StatusLogger.java:91 - MessagingService                n/a 0/0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,583 StatusLogger.java:101 - Cache Type Size                 Capacity               KeysToSave INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,583 StatusLogger.java:103 - KeyCache 75540688                104857600                      all INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,583 StatusLogger.java:109 - RowCache 0                        0                      all INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,583 StatusLogger.java:116 - Table                       Memtable ops,data INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,583 StatusLogger.java:119 - system_schema.columns 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,583 StatusLogger.java:119 - system_schema.types 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,583 StatusLogger.java:119 - system_schema.indexes 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,583 StatusLogger.java:119 - system_schema.keyspaces 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,584 StatusLogger.java:119 - system_schema.dropped_columns                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,584 StatusLogger.java:119 - system_schema.aggregates 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,584 StatusLogger.java:119 - system_schema.triggers 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,584 StatusLogger.java:119 - system_schema.tables 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,584 StatusLogger.java:119 - system_schema.views 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,584 StatusLogger.java:119 - system_schema.functions 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,584 StatusLogger.java:119 - system.compaction_history 2,403 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,584 StatusLogger.java:119 - system.IndexInfo 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,584 StatusLogger.java:119 - system.repairs 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,585 StatusLogger.java:119 - system.size_estimates 1625,31346 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,585 StatusLogger.java:119 - system.table_estimates 3250,67852 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,585 StatusLogger.java:119 - system.paxos 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,585 StatusLogger.java:119 - system.built_views 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,585 StatusLogger.java:119 - system.peer_events 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,585 StatusLogger.java:119 - system.peers_v2 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,585 StatusLogger.java:119 - system.peers 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,585 StatusLogger.java:119 - system.peer_events_v2 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,585 StatusLogger.java:119 - system.batches 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,586 StatusLogger.java:119 - system.transferred_ranges 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,586 StatusLogger.java:119 - system.transferred_ranges_v2                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,586 StatusLogger.java:119 - system.view_builds_in_progress                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,586 StatusLogger.java:119 - system.local 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,586 StatusLogger.java:119 - system.sstable_activity 508,8564 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,586 StatusLogger.java:119 - system.available_ranges_v2 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,586 StatusLogger.java:119 - system.available_ranges 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,586 StatusLogger.java:119 - system.prepared_statements 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,586 StatusLogger.java:119 - system_auth.roles 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,587 StatusLogger.java:119 - system_auth.role_members 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,587 StatusLogger.java:119 - system_auth.resource_role_permissons_index                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,587 StatusLogger.java:119 - system_auth.network_permissions                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,587 StatusLogger.java:119 - system_auth.role_permissions                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,587 StatusLogger.java:119 - system_distributed.parent_repair_history                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,587 StatusLogger.java:119 - system_distributed.repair_history                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,587 StatusLogger.java:119 - system_distributed.view_build_status                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,587 StatusLogger.java:119 - reaper_db.node_operations 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,587 StatusLogger.java:119 - reaper_db.repair_run 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,588 StatusLogger.java:119 - reaper_db.repair_run_by_unit                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,588 StatusLogger.java:119 - reaper_db.cluster 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,588 StatusLogger.java:119 - reaper_db.diagnostic_event_subscription                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,588 StatusLogger.java:119 - reaper_db.running_reapers 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,588 StatusLogger.java:119 - reaper_db.node_metrics_v3 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,588 StatusLogger.java:119 - reaper_db.repair_schedule_v1                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,588 StatusLogger.java:119 - reaper_db.repair_unit_v1 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,588 StatusLogger.java:119 - reaper_db.repair_run_by_cluster                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,588 StatusLogger.java:119 - reaper_db.repair_schedule_by_cluster_and_keyspace 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,589 StatusLogger.java:119 - reaper_db.leader 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,589 StatusLogger.java:119 - reaper_db.schema_migration_leader                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,589 StatusLogger.java:119 - reaper_db.running_repairs 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,589 StatusLogger.java:119 - reaper_db.schema_migration 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,589 StatusLogger.java:119 - reaper_db.node_metrics_v1 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,589 StatusLogger.java:119 - reaper_db.repair_run_by_cluster_v2                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,589 StatusLogger.java:119 - reaper_db.snapshot 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,589 StatusLogger.java:119 - system_traces.sessions 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,589 StatusLogger.java:119 - system_traces.events 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,590 StatusLogger.java:119 - doc.doc 71523,9515801 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,590 StatusLogger.java:119 - doc.fieldcounts 719639,2487714 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,590 StatusLogger.java:119 - doc.meta_ftametrics 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,590 StatusLogger.java:119 - doc.parent_child 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,590 StatusLogger.java:119 - doc.blocks 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,590 StatusLogger.java:119 - doc.ds_30 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,590 StatusLogger.java:119 - doc.child_parent 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,590 StatusLogger.java:119 - doc.seq 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,590 StatusLogger.java:119 - doc.doctemp 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,590 StatusLogger.java:119 - doc.ds_21 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,591 StatusLogger.java:119 - doc.extractedmetadata 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,591 StatusLogger.java:119 - doc.datasources 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,591 StatusLogger.java:119 - doc.ds_16 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,591 StatusLogger.java:119 - doc.ordered_fieldcounts 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,591 StatusLogger.java:119 - doc.ds_22 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,591 StatusLogger.java:119 - doc.correlationbuckets 39427,8388316 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,591 StatusLogger.java:119 - doc.ftametrics 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,591 StatusLogger.java:119 - doc.binary_docs 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,591 StatusLogger.java:119 - doc.ordered_metafieldcounts                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,592 StatusLogger.java:119 - doc.ds_27 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,592 StatusLogger.java:119 - doc.correlationdocbuckets 450171,39061883 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,592 StatusLogger.java:119 - doc.ds_29 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,592 StatusLogger.java:119 - doc.ds_32 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,592 StatusLogger.java:119 - doc.ds_31 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,592 StatusLogger.java:119 - doc.correlation 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,592 StatusLogger.java:119 - doc.ds_20 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,592 StatusLogger.java:119 - doc.indexorganize 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,592 StatusLogger.java:119 - doc.binary_data 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,592 StatusLogger.java:119 - doc.origdoc 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,593 StatusLogger.java:119 - doc.test_ds16_ds17 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,593 StatusLogger.java:119 - doc.metafieldcounts 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,593 StatusLogger.java:119 - doc.ds_28 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,593 StatusLogger.java:119 - doc.sourcebuckets 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,593 StatusLogger.java:119 - doc.ds_18 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,593 StatusLogger.java:119 - doc.sourcecorrelationcounts                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,593 StatusLogger.java:119 - doc.ds_17 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:31,593 StatusLogger.java:119 - doc.sourcecorrelation 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,594 MessagingMetrics.java:206 - GOSSIP_DIGEST_SYN messages were dropped in last 5000 ms: 0 internal and 1 cross node. Mean internal dropped latency: 0 ms and Mean cross-node dropped latency: 15137813 ms INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,594 StatusLogger.java:65 - Pool Name                       Active Pending      Completed   Blocked  All Time Blocked INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,594 StatusLogger.java:69 - ReadStage 0         0        4730049         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,594 StatusLogger.java:69 - CompactionExecutor 0         0         384171         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,594 StatusLogger.java:69 - MutationStage 0         0       14541404         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,594 StatusLogger.java:69 - MemtableReclaimMemory 0         0            316         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,594 StatusLogger.java:69 - PendingRangeCalculator 0         0             11         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,594 StatusLogger.java:69 - GossipStage 0         0        1126070         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,594 StatusLogger.java:69 - SecondaryIndexManagement 0         0              0         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,595 StatusLogger.java:69 - HintsDispatcher 0         0             15         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,595 StatusLogger.java:69 - Native-Transport-Requests 0         0       13286967         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,595 StatusLogger.java:69 - RequestResponseStage 0         0       15725284         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,595 StatusLogger.java:69 - MemtableFlushWriter 0         0            298         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,595 StatusLogger.java:69 - PerDiskMemtableFlushWriter_0 0         0            316         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,595 StatusLogger.java:69 - MemtablePostFlush 0         0            336         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,595 StatusLogger.java:69 - Sampler 0         0              0         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,595 StatusLogger.java:69 - ValidationExecutor 0         0              0         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,595 StatusLogger.java:69 - ViewBuildExecutor 0         0              0         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,595 StatusLogger.java:69 - CacheCleanupExecutor 0         0              0         0                 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,596 StatusLogger.java:79 - CompactionManager                 0 0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,596 StatusLogger.java:91 - MessagingService                n/a 0/0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,596 StatusLogger.java:101 - Cache Type Size                 Capacity               KeysToSave INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,596 StatusLogger.java:103 - KeyCache 75542896                104857600                      all INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,596 StatusLogger.java:109 - RowCache 0                        0                      all INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,596 StatusLogger.java:116 - Table                       Memtable ops,data INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,596 StatusLogger.java:119 - system_schema.columns 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,596 StatusLogger.java:119 - system_schema.types 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,596 StatusLogger.java:119 - system_schema.indexes 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,596 StatusLogger.java:119 - system_schema.keyspaces 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,597 StatusLogger.java:119 - system_schema.dropped_columns                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,597 StatusLogger.java:119 - system_schema.aggregates 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,597 StatusLogger.java:119 - system_schema.triggers 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,597 StatusLogger.java:119 - system_schema.tables 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,597 StatusLogger.java:119 - system_schema.views 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,597 StatusLogger.java:119 - system_schema.functions 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,597 StatusLogger.java:119 - system.compaction_history 2,403 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,597 StatusLogger.java:119 - system.IndexInfo 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,597 StatusLogger.java:119 - system.repairs 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,597 StatusLogger.java:119 - system.size_estimates 1625,31346 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,597 StatusLogger.java:119 - system.table_estimates 3250,67852 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,597 StatusLogger.java:119 - system.paxos 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,598 StatusLogger.java:119 - system.built_views 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,598 StatusLogger.java:119 - system.peer_events 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,598 StatusLogger.java:119 - system.peers_v2 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,598 StatusLogger.java:119 - system.peers 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,598 StatusLogger.java:119 - system.peer_events_v2 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,598 StatusLogger.java:119 - system.batches 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,598 StatusLogger.java:119 - system.transferred_ranges 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,598 StatusLogger.java:119 - system.transferred_ranges_v2                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,598 StatusLogger.java:119 - system.view_builds_in_progress                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,598 StatusLogger.java:119 - system.local 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,598 StatusLogger.java:119 - system.sstable_activity 508,8564 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,598 StatusLogger.java:119 - system.available_ranges_v2 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,598 StatusLogger.java:119 - system.available_ranges 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,599 StatusLogger.java:119 - system.prepared_statements 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,599 StatusLogger.java:119 - system_auth.roles 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,599 StatusLogger.java:119 - system_auth.role_members 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,599 StatusLogger.java:119 - system_auth.resource_role_permissons_index                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,599 StatusLogger.java:119 - system_auth.network_permissions                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,599 StatusLogger.java:119 - system_auth.role_permissions                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,599 StatusLogger.java:119 - system_distributed.parent_repair_history                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,599 StatusLogger.java:119 - system_distributed.repair_history                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,599 StatusLogger.java:119 - system_distributed.view_build_status                 0,0 INFO  [ScheduledTasks:1] 2021-09-10 11:14:36,599 StatusLogger.java:119 - reaper_db.node_operations 0,0
.
.
.

and this on the other:

DEBUG [epollEventLoopGroup-5-77] 2021-09-10 11:18:35,174 InitialConnectionHandler.java:153 - Configured pipeline: DefaultChannelPipeline{(frameDecoder = org.apache.cassandra.net.FrameDecoderCrc), (frameEncoder = org.apache.cassandra.net.FrameEncoderCrc), (cqlProcessor = org.apache.cassandra.transport.CQLMessageHandler), (exceptionHandler = org.apache.cassandra.transport.ExceptionHandlers$PostV5ExceptionHandler)} WARN  [epollEventLoopGroup-5-77] 2021-09-10 11:18:35,180 ExceptionHandlers.java:104 - Unknown exception in client networking io.netty.channel.unix.Errors$NativeIoException: readAddress(..) failed: Connection reset by peer DEBUG [epollEventLoopGroup-5-78] 2021-09-10 11:18:36,275 InitialConnectionHandler.java:121 - Response to STARTUP sent, configuring pipeline for 5/v5 DEBUG [epollEventLoopGroup-5-78] 2021-09-10 11:18:36,276 InitialConnectionHandler.java:153 - Configured pipeline: DefaultChannelPipeline{(frameDecoder = org.apache.cassandra.net.FrameDecoderCrc), (frameEncoder = org.apache.cassandra.net.FrameEncoderCrc), (cqlProcessor = org.apache.cassandra.transport.CQLMessageHandler), (exceptionHandler = org.apache.cassandra.transport.ExceptionHandlers$PostV5ExceptionHandler)} WARN  [epollEventLoopGroup-5-78] 2021-09-10 11:18:36,278 ExceptionHandlers.java:104 - Unknown exception in client networking io.netty.channel.unix.Errors$NativeIoException: readAddress(..) failed: Connection reset by peer INFO  [Messaging-EventLoop-3-39] 2021-09-10 11:18:41,326 InboundConnectionInitiator.java:464 - /172.16.100.44:7000(/172.16.100.44:44368)->/172.16.100.37:7000-URGENT_MESSAGES-8aa82849 messaging connection established, version = 12, framing = LZ4, encryption = unencrypted INFO  [ScheduledTasks:1] 2021-09-10 11:18:42,653 MessagingMetrics.java:206 - GOSSIP_DIGEST_SYN messages were dropped in last 5000 ms: 0 internal and 1 cross node. Mean internal dropped latency: 0 ms and Mean cross-node dropped latency: 15137813 ms
.
.
.

-Joe


On 9/10/2021 11:06 AM, Sam Tunnicliffe wrote:
Is there anything in the logs of the other nodes, particularly those in the seeds list of the one which won't start? If this is a problem with the peers being unable to respond, as the issue fixed in 4.0.1 (CASSANDRA-16877) was, you may see some indication there.

Sam

On 10 Sep 2021, at 15:56, Joe Obernberger <joseph.obernber...@gmail.com> wrote:

Thank you Jeff - yes, this is on the latest 4.0.1

nodetool version
ReleaseVersion: 4.0.1
nodetool status
Datacenter: datacenter1
=======================
Status=Up/Down
|/ State=Normal/Leaving/Joining/Moving
--  Address         Load        Tokens  Owns (effective)  Host ID Rack
UN  172.16.100.251  488.38 GiB  200 38.7% 660f476c-a124-4ca0-b55f-75efe56370da  rack1 UN  172.16.100.208  76.02 GiB   30 5.8% 2529b6ed-cdb2-43c2-bdd7-171cfe308bd3  rack1 UN  172.16.100.252  501.88 GiB  200 38.6% e83aa851-69b4-478f-88f6-60e657ea6539  rack1 UN  172.16.100.249  517.27 GiB  200 38.6% 49e4f571-7d1c-4e1e-aca7-5bbe076596f7  rack1 UN  172.16.100.36   524.45 GiB  200 38.6% d9702f96-256e-45ae-8e12-69a42712be50  rack1 UN  172.16.100.39   521.05 GiB  200 38.6% 93f9cb0f-ea71-4e3d-b62a-f0ea0e888c47  rack1 UN  172.16.100.253  11.39 GiB   4 0.8% a1a16910-9167-4174-b34b-eb859d36347e  rack1 UN  172.16.100.248  524.46 GiB  200 38.7% 4bbbe57c-6219-41e5-bbac-de92a9594d53  rack1 UN  172.16.100.37   314.67 GiB  120 23.2% 08a19658-40be-4e55-8709-812b3d4ac750  rack1 UN  172.16.100.250  464.23 GiB  200 38.6% b74b6e65-af63-486a-b07f-9e304ec30a39  rack1

yum list installed | grep cass
cassandra.noarch 4.0.1-1                               @cassandra

-Joe

On 9/10/2021 10:54 AM, Jeff Jirsa wrote:
Is this on 4.0.0 ? 4.0.1 fixes an issue where the gossip result is too large for the urgent message queue, causing this stack trace, and was released 3 days ago. I've never seen it on a 10 node cluster before, but I'd be trying that.

On Fri, Sep 10, 2021 at 7:50 AM Joe Obernberger <joseph.obernber...@gmail.com> wrote:

    I have a 10 node cluster and am trying to add another node. The new
    node is running Rocky Linux and I'm getting the unable to gossip
    with
    any peers error.  Firewall and SELinux are off.  I can ping all the
    other nodes OK.  I've checked everything I can think of
    (/etc/hosts,
    listen_address, broadcast etc..).  It all looks correct to me.
    Any ideas?  Could it be an incompatibility with Rocky?

    DEBUG [main] 2021-09-10 06:45:24,846
    YamlConfigurationLoader.java:112 -
    Loading settings from
    file:/etc/cassandra/default.conf/cassandra.yaml
    INFO  [Messaging-EventLoop-3-6] 2021-09-10 06:45:24,921
    OutboundConnection.java:1150 -
    /172.16.100.44:7000(/172.16.100.44:45934)->/172.16.100.
    <http://172.16.0.100/>253:7000-URGENT_MESSAGES-90efbb9e
    successfully connected, version = 12, framing = LZ4, encryption =
    unencrypted
    INFO  [Messaging-EventLoop-3-3] 2021-09-10 06:45:24,930
    OutboundConnection.java:1150 -
    /172.16.100.44:7000(/172.16.100.44:44320)->/172.16.100.37
    <http://172.16.100.37/>:7000-URGENT_MESSAGES-eae47864
    successfully connected, version = 12, framing = LZ4, encryption =
    unencrypted
    INFO  [ScheduledTasks:1] 2021-09-10 06:45:27,648
    TokenMetadata.java:525
    - Updating topology for all endpoints that have changed
    DEBUG [OptionalTasks:1] 2021-09-10 06:45:54,644
    SizeEstimatesRecorder.java:65 - Node is not part of the ring; not
    recording size estimates
    ERROR [main] 2021-09-10 06:46:25,891 CassandraDaemon.java:909 -
    Exception encountered during startup
    java.lang.RuntimeException: Unable to gossip with any peers
             at
    org.apache.cassandra.gms.Gossiper.doShadowRound(Gossiper.java:1805)
             at
    
org.apache.cassandra.service.StorageService.checkForEndpointCollision(StorageService.java:648)
             at
    
org.apache.cassandra.service.StorageService.prepareToJoin(StorageService.java:934)
             at
    
org.apache.cassandra.service.StorageService.initServer(StorageService.java:784)
             at
    
org.apache.cassandra.service.StorageService.initServer(StorageService.java:729)
             at
    org.apache.cassandra.service.CassandraDaemon.setup(CassandraDaemon.java:420)
             at
    
org.apache.cassandra.service.CassandraDaemon.activate(CassandraDaemon.java:763)
             at
    org.apache.cassandra.service.CassandraDaemon.main(CassandraDaemon.java:887)
    DEBUG [StorageServiceShutdownHook] 2021-09-10 06:46:25,896
    StorageService.java:1621 - DRAINING: starting drain process
    INFO  [StorageServiceShutdownHook] 2021-09-10 06:46:25,898
    HintsService.java:220 - Paused hints dispatch
    WARN  [StorageServiceShutdownHook] 2021-09-10 06:46:25,899
    Gossiper.java:1993 - No local state, state is in silent
    shutdown, or
    node hasn't joined, not announcing shutdown

    Thank you!

    -Joe


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