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https://issues.apache.org/jira/browse/CASSANDRA-3463?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13145368#comment-13145368
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Radim Kolar commented on CASSANDRA-3463:
----------------------------------------
Now situation changed a bit:
INFO [GossipTasks:1] 2011-11-07 13:32:54,596 Gossiper.java (line 716)
InetAddress /****.99.40 is now dead.
INFO [GossipStage:1] 2011-11-07 13:32:55,163 Gossiper.java (line 702)
InetAddress /***.99.40 is now UP
INFO [HintedHandoff:7] 2011-11-07 13:33:25,046 HintedHandOffManager.java (line
323) Started hinted handoff for endpoint /***.99.40
INFO [HintedHandoff:7] 2011-11-07 13:33:45,090 HintedHandOffManager.java (line
357) Could not complete hinted handoff to /***.99.40
INFO [HintedHandoff:7] 2011-11-07 13:33:45,090 HintedHandOffManager.java (line
379) Finished hinted handoff of 0 rows to endpoint /****.99.40
but still one node thinks that 99.40 is unreachable, even it is up and no
schema disagreement in last hintedhandoff delivery attempt.
> cluster split due to schema disagreement
> ----------------------------------------
>
> Key: CASSANDRA-3463
> URL: https://issues.apache.org/jira/browse/CASSANDRA-3463
> Project: Cassandra
> Issue Type: Bug
> Affects Versions: 0.8.7
> Reporter: Radim Kolar
>
> i found interesting situation in 2 node cluster. Replication factor is 1.
> gossip (nodetool ring) thinks on both nodes that they are both up.
> Address DC Rack Status State Load Owns
> Token
>
> 99070591730234615865843651857942052864
> ****.104.18 datacenter1 rack1 Up Normal 19.36 GB 41.77%
> 0
> ****.99.40 datacenter1 rack1 Up Normal 26.24 GB 58.23%
> one node works fine, while second thinks that other node is down even if his
> gossip correctly recognizes other node as up. Problem is in schema agreement,
> but i dont know if logs contains enough information to discover why nodes
> could not reach schema agreement.
> [default@test] describe cluster;
> Cluster Information:
> Snitch: org.apache.cassandra.locator.SimpleSnitch
> Partitioner: org.apache.cassandra.dht.RandomPartitioner
> Schema versions:
> 9f2b5be0-06e2-11e1-0000-d14dd490cdf6: [****.104.18]
> UNREACHABLE: [****.99.40]
> INFO [GossipTasks:1] 2011-11-06 18:49:56,325 Gossiper.java (line 716)
> InetAddress /*****99.40 is now dead.
> INFO [GossipStage:1] 2011-11-06 18:50:01,345 Gossiper.java (line 702)
> InetAddress /*****99.40 is now UP
> INFO [GossipTasks:1] 2011-11-06 18:50:02,331 Gossiper.java (line 716)
> InetAddress /*****99.40 is now dead.
> INFO [GossipStage:1] 2011-11-06 18:50:06,444 Gossiper.java (line 702)
> InetAddress /*****99.40 is now UP
> INFO [GossipTasks:1] 2011-11-06 18:50:07,336 Gossiper.java (line 716)
> InetAddress /*****99.40 is now dead.
> INFO [GossipStage:1] 2011-11-06 18:50:11,544 Gossiper.java (line 702)
> InetAddress /*****99.40 is now UP
> INFO [GossipTasks:1] 2011-11-06 18:50:12,341 Gossiper.java (line 716)
> InetAddress /*****99.40 is now dead.
> INFO [GossipStage:1] 2011-11-06 18:50:16,644 Gossiper.java (line 702)
> InetAddress /*****99.40 is now UP
> INFO [GossipTasks:1] 2011-11-06 18:50:17,347 Gossiper.java (line 716)
> InetAddress /*****99.40 is now dead.
> INFO [GossipStage:1] 2011-11-06 18:50:31,944 Gossiper.java (line 702)
> InetAddress /*****99.40 is now UP
> INFO [GossipTasks:1] 2011-11-06 18:50:32,362 Gossiper.java (line 716)
> InetAddress /*****99.40 is now dead.
> INFO [GossipStage:1] 2011-11-06 18:50:37,044 Gossiper.java (line 702)
> InetAddress /*****99.40 is now UP
> ERROR [HintedHandoff:6] 2011-11-06 18:50:42,010 AbstractCassandraDaemon.java
> (line 139) Fatal exception in thread Thread[HintedHandoff:6,1,main]
> java.lang.RuntimeException: java.lang.RuntimeException: Could not reach
> schema agreement with /*****99.40 in 60000ms
> at
> org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:34)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
> at java.lang.Thread.run(Thread.java:679)
> Caused by: java.lang.RuntimeException: Could not reach schema agreement with
> /*****99.40 in 60000ms
> at
> org.apache.cassandra.db.HintedHandOffManager.waitForSchemaAgreement(HintedHandOffManager.java:293)
> at
> org.apache.cassandra.db.HintedHandOffManager.deliverHintsToEndpoint(HintedHandOffManager.java:304)
> at
> org.apache.cassandra.db.HintedHandOffManager.access$100(HintedHandOffManager.java:89)
> at
> org.apache.cassandra.db.HintedHandOffManager$2.runMayThrow(HintedHandOffManager.java:397)
> at
> org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:30)
> ... 3 more
> ERROR [HintedHandoff:6] 2011-11-06 18:50:42,028 AbstractCassandraDaemon.java
> (line 139) Fatal exception in thread Thread[HintedHandoff:6,1,main]
> java.lang.RuntimeException: java.lang.RuntimeException: Could not reach
> schema agreement with /*****99.40 in 60000ms
> at
> org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:34)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1110)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:603)
> at java.lang.Thread.run(Thread.java:679)
> Caused by: java.lang.RuntimeException: Could not reach schema agreement with
> /*****99.40 in 60000ms
> at
> org.apache.cassandra.db.HintedHandOffManager.waitForSchemaAgreement(HintedHandOffManager.java:293)
> at
> org.apache.cassandra.db.HintedHandOffManager.deliverHintsToEndpoint(HintedHandOffManager.java:304)
> at
> org.apache.cassandra.db.HintedHandOffManager.access$100(HintedHandOffManager.java:89)
> at
> org.apache.cassandra.db.HintedHandOffManager$2.runMayThrow(HintedHandOffManager.java:397)
> at
> org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:30)
> ... 3 more
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