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Romain Hardouin edited comment on CASSANDRA-13240 at 2/22/17 8:00 AM: ---------------------------------------------------------------------- You have to reset logging levels with nodetool, just type the following command on all nodes: {code} nodetool setlogginglevel {code} FYI {{setlogginglevel}} command takes arguments when you want to put a class or a whole package on DEBUG or TRACE, e.g: {code} nodetool setlogginglevel org.apache.cassandra.gms.FailureDetector TRACE {code} Also check your logback.xml and compare it with the upstream file of your Cassandra version to see if someone changed something. was (Author: rha): You have to reset logging levels with nodetool, just type the following command on all nodes: {code} nodetool setlogginglevel {code} FYI {{setlogginglevel}} command takes arguments when you want to put a class or a whole package on DEBUG or TRACE, e.g: {code} nodetool setlogginglevel org.apache.cassandra.gms.FailureDetector TRACE {code} Also check you logback.xml and compare it with the upstream file of your Cassandra version to see if someone changed something. > FailureDetector.java > -------------------- > > Key: CASSANDRA-13240 > URL: https://issues.apache.org/jira/browse/CASSANDRA-13240 > Project: Cassandra > Issue Type: Bug > Components: Configuration > Environment: Production > Reporter: Chetan Rawal > Priority: Minor > > We are getting frequent FailureDetector.java messages in Cassandra logs. > TRACE [GossipStage:1] 2017-02-17 07:06:00,156 FailureDetector.java (line 164) > reporting /10.21.176.84 > TRACE [GossipStage:1] 2017-02-17 07:06:00,157 Gossiper.java (line 920) > /10.21.176.84local generation 1478408871, remote generation 1478408871 > TRACE [GossipStage:1] 2017-02-17 07:06:00,157 Gossiper.java (line 966) > Updating heartbeat state version to 9025996 from 9025995 for /10.21.176.84 ... > TRACE [OptionalTasks:1] 2017-02-17 07:06:00,239 MeteredFlusher.java (line > 111) memtable memory usage is 10485760 bytes with 10485760 live > TRACE [GossipTasks:1] 2017-02-17 07:06:00,451 Gossiper.java (line 126) My > heartbeat is now 9040716 > TRACE [GossipTasks:1] 2017-02-17 07:06:00,451 Gossiper.java (line 385) Gossip > Digests are : /10.21.181.60:1478392309:9040716 > /10.21.176.84:1478408871:9025996 > TRACE [GossipTasks:1] 2017-02-17 07:06:00,451 Gossiper.java (line 570) > Sending a GossipDigestSynMessage to /10.21.176.84 ... > TRACE [GossipTasks:1] 2017-02-17 07:06:00,451 MessagingService.java (line > 450) /10.21.181.60 sending GOSSIP_DIGEST_SYN to 27612718@/10.21.176.84 > TRACE [GossipTasks:1] 2017-02-17 07:06:00,451 Gossiper.java (line 165) > Performing status check ... > TRACE [GossipTasks:1] 2017-02-17 07:06:00,452 FailureDetector.java (line 185) > PHI for /10.21.176.84 : 0.12728519330605453 > TRACE [Thread-50] 2017-02-17 07:06:00,453 IncomingTcpConnection.java (line > 112) Version is now 5 > TRACE [Thread-50] 2017-02-17 07:06:00,453 MessagingService.java (line 572) > /10.21.181.60 received GOSSIP_DIGEST_ACK from 27177304@/10.21.176.84 > TRACE [GossipStage:1] 2017-02-17 07:06:00,453 GossipDigestAckVerbHandler.java > (line 47) Received a GossipDigestAckMessage from /10.21.176.84 > TRACE [GossipStage:1] 2017-02-17 07:06:00,453 Gossiper.java (line 726) local > heartbeat version 9040716 greater than 9040715 for /10.21.181.60 > TRACE [GossipStage:1] 2017-02-17 07:06:00,453 GossipDigestAckVerbHandler.java > (line 84) Sending a GossipDigestAck2Message to /10.21.176.84 > TRACE [GossipStage:1] 2017-02-17 07:06:00,453 MessagingService.java (line > 450) /10.21.181.60 sending GOSSIP_DIGEST_ACK2 to 27612719@/10.21.176.84 > TRACE [Thread-50] 2017-02-17 07:06:01,132 IncomingTcpConnection.java (line > 112) Version is now 5 > TRACE [Thread-50] 2017-02-17 07:06:01,132 MessagingService.java (line 572) > /10.21.181.60 received GOSSIP_DIGEST_SYN from 27177305@/10.21.176.84 > TRACE [GossipStage:1] 2017-02-17 07:06:01,133 GossipDigestSynVerbHandler.java > (line 46) Received a GossipDigestSynMessage from /10.21.176.84 > TRACE [GossipStage:1] 2017-02-17 07:06:01,133 GossipDigestSynVerbHandler.java > (line 76) Gossip syn digests are : /10.21.181.60:1478392309:9040716 > /10.21.176.84:1478408871:9025997 > TRACE [GossipStage:1] 2017-02-17 07:06:01,133 GossipDigestSynVerbHandler.java > (line 90) Sending a GossipDigestAckMessage to /10.21.176.84 > TRACE [GossipStage:1] 2017-02-17 07:06:01,133 MessagingService.java (line > 450) /10.21.181.60 sending GOSSIP_DIGEST_ACK to 27612720@/10.21.176.84 > TRACE [Thread-50] 2017-02-17 07:06:01,134 IncomingTcpConnection.java (line > 112) Version is now 5 > TRACE [Thread-50] 2017-02-17 07:06:01,134 MessagingService.java (line 572) > /10.21.181.60 received GOSSIP_DIGEST_ACK2 from 27177306@/10.21.176.84 > TRACE [GossipStage:1] 2017-02-17 07:06:01,135 > GossipDigestAck2VerbHandler.java (line 45) Received a GossipDigestAck2Message > from /10.21.176.84 > TRACE [GossipStage:1] 2017-02-17 07:06:01,135 FailureDetector.java (line 164) > reporting /10.21.176.84 -- This message was 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