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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-2946) HintedHandoff fails with could not reach schema agreement
Date Tue, 26 Jul 2011 22:07:09 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-2946?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13071382#comment-13071382
] 

Jonathan Ellis commented on CASSANDRA-2946:
-------------------------------------------

okay, then I'll add a comment to that effect, assuming Richard confirms this fixes the bug.

> HintedHandoff fails with could not reach schema agreement
> ---------------------------------------------------------
>
>                 Key: CASSANDRA-2946
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2946
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 0.8.1
>            Reporter: Richard Low
>            Assignee: Jonathan Ellis
>             Fix For: 0.8.3
>
>         Attachments: 2946.txt
>
>
> To reproduce, have two nodes A and B.
> 1. On node A, create a keyspace with replication factor 1 and add a column family
> 2. Ensure node B has created the keyspace and column family
> 3. Take down node B
> 4. Insert some keys to A at CL.ANY, ensuring some keys should be written to B
> 5. Bring up node B
> 6. When hints are delivered, I get the error:
> ERROR [HintedHandoff:1] 2011-07-25 17:19:14,729 AbstractCassandraDaemon.java (line 139)
Fatal exception in thread Thread[HintedHandoff:1,1,main]
> java.lang.RuntimeException: java.lang.RuntimeException: Could not reach schema agreement
with /10.2.129.9 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:636)
> Caused by: java.lang.RuntimeException: Could not reach schema agreement with /10.2.129.9
in 60000ms
>         at org.apache.cassandra.db.HintedHandOffManager.waitForSchemaAgreement(HintedHandOffManager.java:290)
>         at org.apache.cassandra.db.HintedHandOffManager.deliverHintsToEndpoint(HintedHandOffManager.java:301)
>         at org.apache.cassandra.db.HintedHandOffManager.access$100(HintedHandOffManager.java:89)
>         at org.apache.cassandra.db.HintedHandOffManager$2.runMayThrow(HintedHandOffManager.java:394)
>         at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:30)
>         ... 3 more
> If I use DatabaseDescriptor.getDefsVersion() instead of gossiper.getEndpointStateForEndpoint(FBUtilities.getLocalAddress()).getApplicationState(ApplicationState.SCHEMA)
then the error goes away, and the hints are correctly delivered.
> This may be the same issue as Aaron saw here: http://cassandra-user-incubator-apache-org.3065146.n2.nabble.com/ApplicationState-Schema-has-drifted-from-DatabaseDescriptor-td6006576.html,
and may be related to CASSANDRA-2083.

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