No. nodetool status, nodetool describecluster also nodetool ring shows a correct cluster.
Not all nodes needs to be a seed, but can be. I had also ALTER KEYSPACE system_auth WITH REPLICATION = { 'class' : 'SimpleStrategy', 'replication_factor' : 6 } AND durable_writes = false; And the first command on the new node was |nodetool repair system_auth| On 04/10/2017 12:37 PM, Chris Mawata wrote: > Notice > .SimpleSeedProvider{seeds=10.100.100.19, 10.100.100.85, > 10.100.100.185, 10.100.100.161, 10.100.100.52, 10.100.1000.213}; > > Why do you have all six of your nodes as seeds? is it possible that > the last one you added used itself as the seed and is isolated? > > On Thu, Apr 6, 2017 at 6:48 AM, Cogumelos Maravilha > <cogumelosmaravi...@sapo.pt <mailto:cogumelosmaravi...@sapo.pt>> wrote: > > Yes C* is running as cassandra: > > cassand+ 2267 1 99 10:18 ? 00:02:56 java > -Xloggc:/var/log/cassandra/gc.log -ea -XX:+UseThreadPriorities > -XX:Threa... > > INFO [main] 2017-04-06 10:35:42,956 Config.java:474 - Node > configuration:[allocate_tokens_for_keyspace=null; > authenticator=PasswordAuthenticator; > authorizer=CassandraAuthorizer; auto_bootstrap=true; > auto_snapshot=true; back_pressure_enabled=false; > back_pressure_strategy=org.apache.cassandra.net > <http://apache.cassandra.net>.RateBasedBackPressure{high_ratio=0.9, > factor=5, flow=FAST}; batch_size_fail_threshold_in_kb=50; > batch_size_warn_threshold_in_kb=5; > batchlog_replay_throttle_in_kb=1024; broadcast_address=null; > broadcast_rpc_address=null; > buffer_pool_use_heap_if_exhausted=true; > cas_contention_timeout_in_ms=6000000; cdc_enabled=false; > cdc_free_space_check_interval_ms=250; cdc_raw_directory=null; > cdc_total_space_in_mb=0; client_encryption_options=<REDACTED>; > cluster_name=company; column_index_cache_size_in_kb=2; > column_index_size_in_kb=64; commit_failure_policy=ignore; > commitlog_compression=null; > commitlog_directory=/mnt/cassandra/commitlog; > commitlog_max_compression_buffers_in_pool=3; > commitlog_periodic_queue_size=-1; commitlog_segment_size_in_mb=32; > commitlog_sync=periodic; commitlog_sync_batch_window_in_ms=NaN; > commitlog_sync_period_in_ms=10000; > commitlog_total_space_in_mb=null; > compaction_large_partition_warning_threshold_mb=100; > compaction_throughput_mb_per_sec=16; concurrent_compactors=null; > concurrent_counter_writes=32; > concurrent_materialized_view_writes=32; concurrent_reads=32; > concurrent_replicates=null; concurrent_writes=32; > counter_cache_keys_to_save=2147483647; > counter_cache_save_period=7200; counter_cache_size_in_mb=null; > counter_write_request_timeout_in_ms=6000000; > credentials_cache_max_entries=1000; > credentials_update_interval_in_ms=-1; > credentials_validity_in_ms=2000; cross_node_timeout=false; > data_file_directories=[Ljava.lang.String;@223f3642; > disk_access_mode=auto; disk_failure_policy=ignore; > disk_optimization_estimate_percentile=0.95; > disk_optimization_page_cross_chance=0.1; > disk_optimization_strategy=ssd; dynamic_snitch=true; > dynamic_snitch_badness_threshold=0.1; > dynamic_snitch_reset_interval_in_ms=600000; > dynamic_snitch_update_interval_in_ms=100; > enable_scripted_user_defined_functions=false; > enable_user_defined_functions=false; > enable_user_defined_functions_threads=true; > encryption_options=null; endpoint_snitch=SimpleSnitch; > file_cache_size_in_mb=null; gc_log_threshold_in_ms=200; > gc_warn_threshold_in_ms=1000; > hinted_handoff_disabled_datacenters=[]; > hinted_handoff_enabled=true; hinted_handoff_throttle_in_kb=1024; > hints_compression=null; hints_directory=/mnt/cassandra/hints; > hints_flush_period_in_ms=10000; incremental_backups=false; > index_interval=null; index_summary_capacity_in_mb=null; > index_summary_resize_interval_in_minutes=60; initial_token=null; > inter_dc_stream_throughput_outbound_megabits_per_sec=200; > inter_dc_tcp_nodelay=false; internode_authenticator=null; > internode_compression=dc; internode_recv_buff_size_in_bytes=0; > internode_send_buff_size_in_bytes=0; > key_cache_keys_to_save=2147483647; key_cache_save_period=14400; > key_cache_size_in_mb=null; listen_address=10.100.100.213; > listen_interface=null; listen_interface_prefer_ipv6=false; > listen_on_broadcast_address=false; max_hint_window_in_ms=10800000; > max_hints_delivery_threads=2; max_hints_file_size_in_mb=128; > max_mutation_size_in_kb=null; max_streaming_retries=3; > max_value_size_in_mb=256; memtable_allocation_type=heap_buffers; > memtable_cleanup_threshold=null; memtable_flush_writers=0; > memtable_heap_space_in_mb=null; memtable_offheap_space_in_mb=null; > min_free_space_per_drive_in_mb=50; > native_transport_max_concurrent_connections=-1; > native_transport_max_concurrent_connections_per_ip=-1; > native_transport_max_frame_size_in_mb=256; > native_transport_max_threads=128; native_transport_port=9042; > native_transport_port_ssl=null; num_tokens=256; > otc_coalescing_strategy=TIMEHORIZON; otc_coalescing_window_us=200; > partitioner=org.apache.cassandra.dht.Murmur3Partitioner; > permissions_cache_max_entries=1000; > permissions_update_interval_in_ms=-1; > permissions_validity_in_ms=2000; phi_convict_threshold=8.0; > prepared_statements_cache_size_mb=null; > range_request_timeout_in_ms=6000000; > read_request_timeout_in_ms=6000000; > request_scheduler=org.apache.cassandra.scheduler.NoScheduler; > request_scheduler_id=null; request_scheduler_options=null; > request_timeout_in_ms=6000000; role_manager=CassandraRoleManager; > roles_cache_max_entries=1000; roles_update_interval_in_ms=-1; > roles_validity_in_ms=2000; > row_cache_class_name=org.apache.cassandra.cache.OHCProvider; > row_cache_keys_to_save=2147483647; row_cache_save_period=0; > row_cache_size_in_mb=0; rpc_address=10.100.100.213; > rpc_interface=null; rpc_interface_prefer_ipv6=false; > rpc_keepalive=true; rpc_listen_backlog=50; > rpc_max_threads=2147483647; rpc_min_threads=16; rpc_port=9160; > rpc_recv_buff_size_in_bytes=null; > rpc_send_buff_size_in_bytes=null; rpc_server_type=sync; > saved_caches_directory=/mnt/cassandra/saved_caches; > > seed_provider=org.apache.cassandra.locator.SimpleSeedProvider{seeds=10.100.100.19, > 10.100.100.85, 10.100.100.185, 10.100.100.161, 10.100.100.52, > 10.100.1000.213}; server_encryption_options=<REDACTED>; > slow_query_log_timeout_in_ms=6000000; > snapshot_before_compaction=false; ssl_storage_port=7001; > sstable_preemptive_open_interval_in_mb=50; > start_native_transport=true; start_rpc=false; storage_port=7000; > stream_throughput_outbound_megabits_per_sec=200; > streaming_keep_alive_period_in_secs=300; > streaming_socket_timeout_in_ms=86400000; > thrift_framed_transport_size_in_mb=15; > thrift_max_message_length_in_mb=16; > thrift_prepared_statements_cache_size_mb=null; > tombstone_failure_threshold=100000; tombstone_warn_threshold=1000; > tracetype_query_ttl=86400; tracetype_repair_ttl=604800; > > transparent_data_encryption_options=org.apache.cassandra.config.TransparentDataEncryptionOptions@38c5cc4c; > trickle_fsync=false; trickle_fsync_interval_in_kb=10240; > truncate_request_timeout_in_ms=6000000; > unlogged_batch_across_partitions_warn_threshold=10; > user_defined_function_fail_timeout=1500; > user_defined_function_warn_timeout=500; > user_function_timeout_policy=die; windows_timer_interval=1; > write_request_timeout_in_ms=6000000] > > Thanks > > > On 04/06/2017 11:30 AM, benjamin roth wrote: >> Have you checked the effective limits of a running CS process? >> Is CS run as Cassandra? Just to rule out missing file perms. >> >> >> Am 06.04.2017 12:24 schrieb "Cogumelos Maravilha" >> <cogumelosmaravi...@sapo.pt <mailto:cogumelosmaravi...@sapo.pt>>: >> >> From cassandra.yaml: >> >> hints_directory: /mnt/cassandra/hints >> data_file_directories: >> - /mnt/cassandra/data >> commitlog_directory: /mnt/cassandra/commitlog >> saved_caches_directory: /mnt/cassandra/saved_caches >> >> drwxr-xr-x 3 cassandra cassandra 23 Apr 5 16:03 mnt/ >> >> drwxr-xr-x 6 cassandra cassandra 68 Apr 5 16:17 ./ >> drwxr-xr-x 3 cassandra cassandra 23 Apr 5 16:03 ../ >> drwxr-xr-x 2 cassandra cassandra 80 Apr 6 10:07 commitlog/ >> drwxr-xr-x 8 cassandra cassandra 124 Apr 5 16:17 data/ >> drwxr-xr-x 2 cassandra cassandra 72 Apr 5 16:20 hints/ >> drwxr-xr-x 2 cassandra cassandra 49 Apr 5 20:17 saved_caches/ >> >> cassand+ 2267 1 99 10:18 ? 00:02:56 java >> -Xloggc:/var/log/cassandra/gc.log -ea >> -XX:+UseThreadPriorities -XX:Threa... >> >> /dev/mapper/um_vg-xfs_lv 885G 27G 858G 4% /mnt >> >> On /etc/security/limits.conf >> >> * - memlock unlimited >> * - nofile 100000 >> * - nproc 32768 >> * - as unlimited >> >> On /etc/security/limits.d/cassandra.conf >> >> cassandra - memlock unlimited >> cassandra - nofile 100000 >> cassandra - as unlimited >> cassandra - nproc 32768 >> >> On /etc/sysctl.conf >> >> vm.max_map_count = 1048575 >> >> On /etc/systcl.d/cassanda.conf >> >> vm.max_map_count = 1048575 >> net.ipv4.tcp_keepalive_time=600 >> >> On /etc/pam.d/su >> ... >> session required pam_limits.so >> ... >> >> Distro is the currently Ubuntu LTS. >> Thanks >> >> >> >> On 04/06/2017 10:39 AM, benjamin roth wrote: >>> Cassandra cannot write an SSTable to disk. Are you sure the >>> disk/volume where SSTables reside (normally >>> /var/lib/cassandra/data) is writeable for the CS user and >>> has enough free space? >>> The CDC warning also implies that. >>> The other warnings indicate you are probably not running CS >>> as root and you did not set an appropriate limit for max >>> open files. Running out of open files can also be a reason >>> for the IO error. >>> >>> 2017-04-06 11:34 GMT+02:00 Cogumelos Maravilha >>> <cogumelosmaravi...@sapo.pt >>> <mailto:cogumelosmaravi...@sapo.pt>>: >>> >>> Hi list, >>> >>> I'm using C* 3.10 in a 6 nodes cluster RF=2. All >>> instances type >>> i3.xlarge (AWS) with 32GB, 2 cores and SSD LVM XFS >>> formated 885G. I have >>> one node that is always dieing and I don't understand >>> why. Can anyone >>> give me some hints please. All nodes using the same >>> configuration. >>> >>> Thanks in advance. >>> >>> INFO [IndexSummaryManager:1] 2017-04-06 05:22:18,352 >>> IndexSummaryRedistribution.java:75 - Redistributing >>> index summaries >>> ERROR [MemtablePostFlush:22] 2017-04-06 06:00:26,800 >>> CassandraDaemon.java:229 - Exception in thread >>> Thread[MemtablePostFlush:22,5,main] >>> org.apache.cassandra.io >>> <http://org.apache.cassandra.io>.FSWriteError: >>> java.io.IOException: Input/output >>> error >>> at >>> >>> org.apache.cassandra.io.util.SequentialWriter.syncDataOnlyInternal(SequentialWriter.java:173) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> >>> org.apache.cassandra.io.util.SequentialWriter.syncInternal(SequentialWriter.java:185) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> org.apache.cassandra.io >>> >>> <http://org.apache.cassandra.io>.compress.CompressedSequentialWriter.access$100(CompressedSequentialWriter.java:38) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> org.apache.cassandra.io >>> >>> <http://org.apache.cassandra.io>.compress.CompressedSequentialWriter$TransactionalProxy.doPrepare(CompressedSequentialWriter.java:307) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> >>> org.apache.cassandra.utils.concurrent.Transactional$AbstractTransactional.prepareToCommit(Transactional.java:173) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> >>> org.apache.cassandra.io.util.SequentialWriter.prepareToCommit(SequentialWriter.java:358) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> org.apache.cassandra.io >>> >>> <http://org.apache.cassandra.io>.sstable.format.big.BigTableWriter$TransactionalProxy.doPrepare(BigTableWriter.java:367) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> >>> org.apache.cassandra.utils.concurrent.Transactional$AbstractTransactional.prepareToCommit(Transactional.java:173) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> org.apache.cassandra.io >>> >>> <http://org.apache.cassandra.io>.sstable.format.SSTableWriter.prepareToCommit(SSTableWriter.java:281) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> org.apache.cassandra.io >>> >>> <http://org.apache.cassandra.io>.sstable.SimpleSSTableMultiWriter.prepareToCommit(SimpleSSTableMultiWriter.java:101) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> >>> org.apache.cassandra.db.ColumnFamilyStore$Flush.flushMemtable(ColumnFamilyStore.java:1153) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> >>> org.apache.cassandra.db.ColumnFamilyStore$Flush.run(ColumnFamilyStore.java:1086) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> >>> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) >>> ~[na:1.8.0_121] >>> at >>> >>> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) >>> [na:1.8.0_121] >>> at >>> >>> org.apache.cassandra.concurrent.NamedThreadFactory.lambda$threadLocalDeallocator$0(NamedThreadFactory.java:79) >>> [apache-cassandra-3.10.jar:3.10] >>> at java.lang.Thread.run(Thread.java:745) ~[na:1.8.0_121] >>> Caused by: java.io.IOException: Input/output error >>> at sun.nio.ch.FileDispatcherImpl.force0(Native >>> Method) ~[na:1.8.0_121] >>> at >>> sun.nio.ch.FileDispatcherImpl.force(FileDispatcherImpl.java:76) >>> ~[na:1.8.0_121] >>> at >>> sun.nio.ch.FileChannelImpl.force(FileChannelImpl.java:388) >>> ~[na:1.8.0_121] >>> at >>> org.apache.cassandra.utils.SyncUtil.force(SyncUtil.java:158) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> >>> org.apache.cassandra.io.util.SequentialWriter.syncDataOnlyInternal(SequentialWriter.java:169) >>> ~[apache-cassandra-3.10.jar:3.10] >>> ... 15 common frames omitted >>> INFO [IndexSummaryManager:1] 2017-04-06 06:22:18,366 >>> IndexSummaryRedistribution.java:75 - Redistributing >>> index summaries >>> ERROR [MemtablePostFlush:31] 2017-04-06 06:39:19,525 >>> CassandraDaemon.java:229 - Exception in thread >>> Thread[MemtablePostFlush:31,5,main] >>> org.apache.cassandra.io >>> <http://org.apache.cassandra.io>.FSWriteError: >>> java.io.IOException: Input/output >>> error >>> at >>> >>> org.apache.cassandra.io.util.SequentialWriter.syncDataOnlyInternal(SequentialWriter.java:173) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> >>> org.apache.cassandra.io.util.SequentialWriter.syncInternal(SequentialWriter.java:185) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> org.apache.cassandra.io >>> >>> <http://org.apache.cassandra.io>.compress.CompressedSequentialWriter.access$100(CompressedSequentialWriter.java:38) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> org.apache.cassandra.io >>> >>> <http://org.apache.cassandra.io>.compress.CompressedSequentialWriter$TransactionalProxy.doPrepare(CompressedSequentialWriter.java:307) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> >>> org.apache.cassandra.utils.concurrent.Transactional$AbstractTransactional.prepareToCommit(Transactional.java:173) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> >>> org.apache.cassandra.io.util.SequentialWriter.prepareToCommit(SequentialWriter.java:358) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> org.apache.cassandra.io >>> >>> <http://org.apache.cassandra.io>.sstable.format.big.BigTableWriter$TransactionalProxy.doPrepare(BigTableWriter.java:367) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> >>> org.apache.cassandra.utils.concurrent.Transactional$AbstractTransactional.prepareToCommit(Transactional.java:173) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> org.apache.cassandra.io >>> >>> <http://org.apache.cassandra.io>.sstable.format.SSTableWriter.prepareToCommit(SSTableWriter.java:281) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> org.apache.cassandra.io >>> >>> <http://org.apache.cassandra.io>.sstable.SimpleSSTableMultiWriter.prepareToCommit(SimpleSSTableMultiWriter.java:101) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> >>> org.apache.cassandra.db.ColumnFamilyStore$Flush.flushMemtable(ColumnFamilyStore.java:1153) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> >>> org.apache.cassandra.db.ColumnFamilyStore$Flush.run(ColumnFamilyStore.java:1086) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> >>> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) >>> ~[na:1.8.0_121] >>> at >>> >>> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) >>> [na:1.8.0_121] >>> at >>> >>> org.apache.cassandra.concurrent.NamedThreadFactory.lambda$threadLocalDeallocator$0(NamedThreadFactory.java:79) >>> [apache-cassandra-3.10.jar:3.10] >>> at java.lang.Thread.run(Thread.java:745) ~[na:1.8.0_121] >>> Caused by: java.io.IOException: Input/output error >>> at sun.nio.ch.FileDispatcherImpl.force0(Native >>> Method) ~[na:1.8.0_121] >>> at >>> sun.nio.ch.FileDispatcherImpl.force(FileDispatcherImpl.java:76) >>> ~[na:1.8.0_121] >>> at >>> sun.nio.ch.FileChannelImpl.force(FileChannelImpl.java:388) >>> ~[na:1.8.0_121] >>> at >>> org.apache.cassandra.utils.SyncUtil.force(SyncUtil.java:158) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> >>> org.apache.cassandra.io.util.SequentialWriter.syncDataOnlyInternal(SequentialWriter.java:169) >>> ~[apache-cassandra-3.10.jar:3.10] >>> ... 15 common frames omitted >>> INFO [main] 2017-04-06 07:11:57,289 >>> YamlConfigurationLoader.java:89 - >>> Configuration location: file:/etc/cassandra/cassandra.yaml >>> >>> >>> Some ERRORs messages: >>> >>> ERROR [MemtablePostFlush:2] 2017-04-05 23:35:46,339 >>> CassandraDaemon.java:229 - Exception in thread >>> Thread[MemtablePostFlush:2,5,main] >>> ERROR [MemtablePostFlush:3] 2017-04-05 23:44:08,471 >>> CassandraDaemon.java:229 - Exception in thread >>> Thread[MemtablePostFlush:3,5,main] >>> ERROR [MemtablePostFlush:4] 2017-04-05 23:54:41,224 >>> CassandraDaemon.java:229 - Exception in thread >>> Thread[MemtablePostFlush:4,5,main] >>> ERROR [MessagingService-Incoming-/10.0.120.52 >>> <http://10.0.120.52>] 2017-04-06 03:19:13,453 >>> CassandraDaemon.java:229 - Exception in thread >>> Thread[MessagingService-Incoming-/10.0.120.52 >>> <http://10.0.120.52>,5,main] >>> ERROR [epollEventLoopGroup-2-6] 2017-04-06 03:24:41,006 >>> CassandraDaemon.java:229 - Exception in thread >>> Thread[epollEventLoopGroup-2-6,10,main] >>> ERROR [Native-Transport-Requests-36] 2017-04-06 03:25:45,915 >>> JVMStabilityInspector.java:142 - JVM state determined to >>> be unstable. >>> Exiting forcefully due to: >>> ERROR [Native-Transport-Requests-49] 2017-04-06 03:25:45,915 >>> JVMStabilityInspector.java:142 - JVM state determined to >>> be unstable. >>> Exiting forcefully due to: >>> ERROR [IndexSummaryManager:1] 2017-04-06 03:25:45,915 >>> JVMStabilityInspector.java:142 - JVM state determined to >>> be unstable. >>> Exiting forcefully due to: >>> ERROR [Native-Transport-Requests-69] 2017-04-06 03:25:45,916 >>> JVMStabilityInspector.java:142 - JVM state determined to >>> be unstable. >>> Exiting forcefully due to: >>> ERROR [Native-Transport-Requests-46] 2017-04-06 03:26:18,465 >>> JVMStabilityInspector.java:142 - JVM state determined to >>> be unstable. >>> Exiting forcefully due to: >>> ERROR [SharedPool-Worker-136] 2017-04-06 03:26:18,465 >>> JVMStabilityInspector.java:142 - JVM state determined to >>> be unstable. >>> Exiting forcefully due to: >>> ERROR [Native-Transport-Requests-156] 2017-04-06 >>> 03:26:18,465 >>> JVMStabilityInspector.java:142 - JVM state determined to >>> be unstable. >>> Exiting forcefully due to: >>> ERROR [SharedPool-Worker-92] 2017-04-06 03:26:24,696 >>> JVMStabilityInspector.java:142 - JVM state determined to >>> be unstable. >>> Exiting forcefully due to: >>> ERROR [Native-Transport-Requests-48] 2017-04-06 >>> 03:26:24,696 ?:? - JVM >>> state determined to be unstable. Exiting forcefully due to: >>> ERROR [Native-Transport-Requests-66] 2017-04-06 03:26:55,808 >>> JVMStabilityInspector.java:142 - JVM state determined to >>> be unstable. >>> Exiting forcefully due to: >>> ERROR [Native-Transport-Requests-77] 2017-04-06 03:26:55,808 >>> JVMStabilityInspector.java:142 - JVM state determined to >>> be unstable. >>> Exiting forcefully due to: >>> ERROR [GossipTasks:1] 2017-04-06 03:26:55,808 >>> JVMStabilityInspector.java:142 - JVM state determined to >>> be unstable. >>> Exiting forcefully due to: >>> ERROR [Native-Transport-Requests-133] 2017-04-06 >>> 03:26:55,808 >>> JVMStabilityInspector.java:142 - JVM state determined to >>> be unstable. >>> Exiting forcefully due to: >>> ERROR [Native-Transport-Requests-135] 2017-04-06 >>> 03:26:55,808 >>> JVMStabilityInspector.java:142 - JVM state determined to >>> be unstable. >>> Exiting forcefully due to: >>> ERROR [ScheduledFastTasks:1] 2017-04-06 03:26:55,808 >>> JVMStabilityInspector.java:142 - JVM state determined to >>> be unstable. >>> Exiting forcefully due to: >>> ERROR [Native-Transport-Requests-70] 2017-04-06 03:27:11,569 >>> JVMStabilityInspector.java:142 - JVM state determined to >>> be unstable. >>> Exiting forcefully due to: >>> ERROR [IndexSummaryManager:1] 2017-04-06 03:27:17,821 >>> CassandraDaemon.java:229 - Exception in thread >>> Thread[IndexSummaryManager:1,1,main] >>> ERROR [Native-Transport-Requests-103] 2017-04-06 >>> 03:27:24,049 >>> JVMStabilityInspector.java:142 - JVM state determined to >>> be unstable. >>> Exiting forcefully due to: >>> ERROR [Native-Transport-Requests-69] 2017-04-06 03:27:24,049 >>> SEPWorker.java:145 - Failed to execute task, unexpected >>> exception killed >>> worker: {} >>> ERROR [SharedPool-Worker-98] 2017-04-06 03:27:24,049 >>> JVMStabilityInspector.java:142 - JVM state determined to >>> be unstable. >>> Exiting forcefully due to: >>> ERROR [MessagingService-Incoming-/10.0.120.52 >>> <http://10.0.120.52>] 2017-04-06 03:27:55,079 >>> JVMStabilityInspector.java:142 - JVM state determined to >>> be unstable. >>> Exiting forcefully due to: >>> ERROR [epollEventLoopGroup-2-5] 2017-04-06 03:27:55,079 >>> JVMStabilityInspector.java:142 - JVM state determined to >>> be unstable. >>> Exiting forcefully due to: >>> ERROR [Native-Transport-Requests-64] 2017-04-06 03:28:43,285 >>> SEPWorker.java:145 - Failed to execute task, unexpected >>> exception killed >>> worker: {} >>> ERROR [MemtablePostFlush:22] 2017-04-06 06:00:26,800 >>> CassandraDaemon.java:229 - Exception in thread >>> Thread[MemtablePostFlush:22,5,main] >>> ERROR [MemtablePostFlush:31] 2017-04-06 06:39:19,525 >>> CassandraDaemon.java:229 - Exception in thread >>> Thread[MemtablePostFlush:31,5,main] >>> >>> Also some WARNs: >>> >>> WARN [main] 2017-04-06 09:26:49,725 CLibrary.java:178 - >>> Unable to lock >>> JVM memory (ENOMEM). This can result in part of the JVM >>> being swapped >>> out, especially with mmapped I/O enabled. Increase >>> RLIMIT_MEMLOCK or run >>> Cassandra as root. >>> >>> WARN [main] 2017-04-06 09:25:07,355 >>> StartupChecks.java:157 - JMX is not >>> enabled to receive remote connections. Please see >>> cassandra-env.sh for >>> more info. >>> >>> WARN [main] 2017-04-06 09:25:07,369 >>> SigarLibrary.java:174 - Cassandra >>> server running in degraded mode. Is swap disabled? : >>> true, Address >>> space adequate? : true, nofile limit adequate? : false, >>> nproc limit >>> adequate? : true >>> >>> WARN [main] 2017-04-06 09:25:07,091 >>> DatabaseDescriptor.java:493 - Small >>> cdc volume detected at /var/lib/cassandra/cdc_raw; setting >>> cdc_total_space_in_mb to 2502. You can override this in >>> cassandra.yaml >>> >>> >>> >> >> > >