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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-6415) Snapshot repair blocks for ever if something happens to the "I made my snapshot" response
Date Thu, 02 Jan 2014 22:01:51 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-6415?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jonathan Ellis updated CASSANDRA-6415:
--------------------------------------

    Fix Version/s: 2.0.4

Yes.

> Snapshot repair blocks for ever if something happens to the "I made my snapshot" response
> -----------------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-6415
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-6415
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Jeremiah Jordan
>            Assignee: Yuki Morishita
>              Labels: repair
>             Fix For: 1.2.13, 2.0.4
>
>         Attachments: 6415-1.2.txt
>
>
> The "snapshotLatch.await();" can be waiting for ever and block all repair operations
indefinitely if something happens that another node doesn't respond.
> {noformat}
>             public void makeSnapshots(Collection<InetAddress> endpoints)
>             {
>                 try
>                 {
>                     snapshotLatch = new CountDownLatch(endpoints.size());
>                     IAsyncCallback callback = new IAsyncCallback()
>                     {
>                         public boolean isLatencyForSnitch()
>                         {
>                             return false;
>                         }
>                         public void response(MessageIn msg)
>                         {
>                             RepairJob.this.snapshotLatch.countDown();
>                         }
>                     };
>                     for (InetAddress endpoint : endpoints)
>                         MessagingService.instance().sendRR(new SnapshotCommand(tablename,
cfname, sessionName, false).createMessage(), endpoint, callback);
>                     snapshotLatch.await();
>                     snapshotLatch = null;
>                 }
>                 catch (InterruptedException e)
>                 {
>                     throw new RuntimeException(e);
>                 }
>             }
> {noformat}



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