Hi Team, I'm getting the below warnings. Please help me out to clear these issues.
Apache Cassandra version : 3.0.13, 5 Node cluster INFO [main] 2018-01-29 16:58:19,487 NativeLibrary.java:167 - JNA mlockall successful WARN [main] 2018-01-29 16:58:19,488 StartupChecks.java:121 - jemalloc shared library could not be preloaded to speed up memory allocations INFO [main] 2018-01-29 16:58:19,488 StartupChecks.java:160 - JMX is enabled to receive remote connections on port: 8002 WARN [main] 2018-01-29 16:58:19,488 StartupChecks.java:178 - OpenJDK is not recommended. Please upgrade to the newest Oracle Java release INFO [main] 2018-01-29 16:58:19,490 SigarLibrary.java:44 - Initializing SIGAR library WARN [main] 2018-01-29 16:58:19,498 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] 2018-01-29 16:58:19,500 StartupChecks.java:246 - Maximum number of memory map areas per process (vm.max_map_count) 65530 is too low, recommended value: 1048575, you can change it with sysctl. WARN [main] 2018-01-29 17:05:07,844 SystemKeyspace.java:1042 - No host ID found, created 2dc59352-e98e-4e77-a5f2-289697e467c7 (Note: This should happen exactly once per node). INFO [main] 2018-01-29 17:05:16,421 Server.java:160 - Starting listening for CQL clients on /10.50.21.22:9042 (unencrypted)... INFO [main] 2018-01-29 17:05:16,449 CassandraDaemon.java:488 - Not starting RPC server as requested. Use JMX (StorageService->startRPCServer()) or nodetool (enablethrift) to start it INFO [OptionalTasks:1] 2018-01-29 17:05:18,443 CassandraRoleManager.java:350 - Created default superuser role 'cassandra' INFO [StorageServiceShutdownHook] 2018-01-29 17:09:55,737 HintsService.java:212 - Paused hints dispatch INFO [StorageServiceShutdownHook] 2018-01-29 17:09:55,740 Server.java:180 - Stop listening for CQL clients INFO [StorageServiceShutdownHook] 2018-01-29 17:09:55,740 Gossiper.java:1490 - Announcing shutdown INFO [StorageServiceShutdownHook] 2018-01-29 17:09:55,741 StorageService.java:1991 - Node /10.50.21.22 state jump to shutdown INFO [StorageServiceShutdownHook] 2018-01-29 17:09:57,743 MessagingService.java:811 - Waiting for messaging service to quiesce INFO [ACCEPT-/10.50.21.22] 2018-01-29 17:09:57,743 MessagingService.java:1110 - MessagingService has terminated the accept() thread INFO [StorageServiceShutdownHook] 2018-01-29 17:09:57,797 HintsService.java:212 - Paused hints dispatch Thanks, Bhargav M.
