There was some issue with the i3 instances and Cassandra. Did you had this cluster running always on i3?
On Apr 6, 2017 13:06, "Cogumelos Maravilha" <cogumelosmaravi...@sapo.pt> wrote: > Limit Soft Limit Hard Limit > Units > Max cpu time unlimited unlimited > seconds > Max file size unlimited unlimited > bytes > Max data size unlimited unlimited > bytes > Max stack size 8388608 unlimited > bytes > Max core file size 0 unlimited > bytes > Max resident set unlimited unlimited > bytes > Max processes 122575 122575 > processes > Max open files 100000 100000 > files > Max locked memory unlimited unlimited > bytes > Max address space unlimited unlimited > bytes > Max file locks unlimited unlimited > locks > Max pending signals 122575 122575 > signals > Max msgqueue size 819200 819200 > bytes > Max nice priority 0 0 > Max realtime priority 0 0 > Max realtime timeout unlimited unlimited us > Please find something wrong there! > > Thanks. > > On 04/06/2017 11:50 AM, benjamin roth wrote: > > Limits: You should check them in /proc/$pid/limits > > 2017-04-06 12:48 GMT+02:00 Cogumelos Maravilha <cogumelosmaravi...@sapo.pt > >: > >> 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.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.c >> assandra.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.con >> fig.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>: >> >> 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>: >> >>> 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.FSWriteError: java.io.IOException: Input/output >>> error >>> at >>> org.apache.cassandra.io.util.SequentialWriter.syncDataOnlyIn >>> ternal(SequentialWriter.java:173) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> org.apache.cassandra.io.util.SequentialWriter.syncInternal(S >>> equentialWriter.java:185) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> org.apache.cassandra.io.compress.CompressedSequentialWriter. >>> access$100(CompressedSequentialWriter.java:38) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> org.apache.cassandra.io.compress.CompressedSequentialWriter$ >>> TransactionalProxy.doPrepare(CompressedSequentialWriter.java:307) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> org.apache.cassandra.utils.concurrent.Transactional$Abstract >>> Transactional.prepareToCommit(Transactional.java:173) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> org.apache.cassandra.io.util.SequentialWriter.prepareToCommi >>> t(SequentialWriter.java:358) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> org.apache.cassandra.io.sstable.format.big.BigTableWriter$Tr >>> ansactionalProxy.doPrepare(BigTableWriter.java:367) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> org.apache.cassandra.utils.concurrent.Transactional$Abstract >>> Transactional.prepareToCommit(Transactional.java:173) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> org.apache.cassandra.io.sstable.format.SSTableWriter.prepare >>> ToCommit(SSTableWriter.java:281) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> org.apache.cassandra.io.sstable.SimpleSSTableMultiWriter.pre >>> pareToCommit(SimpleSSTableMultiWriter.java:101) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> org.apache.cassandra.db.ColumnFamilyStore$Flush.flushMemtabl >>> e(ColumnFamilyStore.java:1153) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> org.apache.cassandra.db.ColumnFamilyStore$Flush.run(ColumnFa >>> milyStore.java:1086) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPool >>> Executor.java:1142) >>> ~[na:1.8.0_121] >>> at >>> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoo >>> lExecutor.java:617) >>> [na:1.8.0_121] >>> at >>> org.apache.cassandra.concurrent.NamedThreadFactory.lambda$th >>> readLocalDeallocator$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.syncDataOnlyIn >>> ternal(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.FSWriteError: java.io.IOException: Input/output >>> error >>> at >>> org.apache.cassandra.io.util.SequentialWriter.syncDataOnlyIn >>> ternal(SequentialWriter.java:173) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> org.apache.cassandra.io.util.SequentialWriter.syncInternal(S >>> equentialWriter.java:185) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> org.apache.cassandra.io.compress.CompressedSequentialWriter. >>> access$100(CompressedSequentialWriter.java:38) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> org.apache.cassandra.io.compress.CompressedSequentialWriter$ >>> TransactionalProxy.doPrepare(CompressedSequentialWriter.java:307) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> org.apache.cassandra.utils.concurrent.Transactional$Abstract >>> Transactional.prepareToCommit(Transactional.java:173) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> org.apache.cassandra.io.util.SequentialWriter.prepareToCommi >>> t(SequentialWriter.java:358) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> org.apache.cassandra.io.sstable.format.big.BigTableWriter$Tr >>> ansactionalProxy.doPrepare(BigTableWriter.java:367) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> org.apache.cassandra.utils.concurrent.Transactional$Abstract >>> Transactional.prepareToCommit(Transactional.java:173) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> org.apache.cassandra.io.sstable.format.SSTableWriter.prepare >>> ToCommit(SSTableWriter.java:281) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> org.apache.cassandra.io.sstable.SimpleSSTableMultiWriter.pre >>> pareToCommit(SimpleSSTableMultiWriter.java:101) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> org.apache.cassandra.db.ColumnFamilyStore$Flush.flushMemtabl >>> e(ColumnFamilyStore.java:1153) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> org.apache.cassandra.db.ColumnFamilyStore$Flush.run(ColumnFa >>> milyStore.java:1086) >>> ~[apache-cassandra-3.10.jar:3.10] >>> at >>> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPool >>> Executor.java:1142) >>> ~[na:1.8.0_121] >>> at >>> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoo >>> lExecutor.java:617) >>> [na:1.8.0_121] >>> at >>> org.apache.cassandra.concurrent.NamedThreadFactory.lambda$th >>> readLocalDeallocator$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.syncDataOnlyIn >>> ternal(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] 2017-04-06 03:19:13,453 >>> CassandraDaemon.java:229 - Exception in thread >>> Thread[MessagingService-Incoming-/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] 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 >>> >>> >>> >> >> >> >> > > -- --