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From "ASF subversion and git services (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ACCUMULO-2228) Security randomwalk fails when namenode dies before bulk import
Date Wed, 22 Jan 2014 19:07:26 GMT

    [ https://issues.apache.org/jira/browse/ACCUMULO-2228?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13879035#comment-13879035
] 

ASF subversion and git services commented on ACCUMULO-2228:
-----------------------------------------------------------

Commit 06f80305e4587f519cb3dfae0686b52b32e7a0b8 in branch refs/heads/master from [~bhavanki]
[ https://git-wip-us.apache.org/repos/asf?p=accumulo.git;h=06f8030 ]

ACCUMULO-2227 / ACCUMULO-2228 Update randomwalk README with HA warning

Hadoop 2.1.0 includes better retry / failover handling than prior versions. This
commit adds a warning to the randomwalk README advising testers to expect more
failures exercising HA under Hadoop versions before 2.1.0.


> Security randomwalk fails when namenode dies before bulk import
> ---------------------------------------------------------------
>
>                 Key: ACCUMULO-2228
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-2228
>             Project: Accumulo
>          Issue Type: Bug
>          Components: test
>    Affects Versions: 1.4.4
>            Reporter: Bill Havanki
>            Assignee: Bill Havanki
>              Labels: ha, randomwalk, test
>
> Running Security randomwalk under HDFS HA, if the active namenode is killed:
> {noformat}
> 20 13:55:58,287 [retry.RetryInvocationHandler] WARN : Exception while invoking class
org.apache.hado
> op.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.create. Not retrying because the
invoked metho
> d is not idempotent, and unable to determine whether it was invoked
> java.io.IOException: Failed on local exception: java.io.IOException: Response is null.;
Host Details
>  : local host is: "slave.domain.com/10.20.200.113"; destination host is: "namenode.domain.com":8020;
> ...
>         at org.apache.accumulo.core.file.rfile.RFileOperations.openWriter(RFileOperations.java:124)
>         at org.apache.accumulo.core.file.DispatchingFileFactory.openWriter(FileOperations.java:80)
>         at org.apache.accumulo.server.test.randomwalk.security.TableOp.visit(TableOp.java:177)
>         at org.apache.accumulo.server.test.randomwalk.Module.visit(Module.java:251)
> ...
> Caused by: java.io.IOException: Response is null.
>         at org.apache.hadoop.ipc.Client$Connection.receiveResponse(Client.java:952)
>         at org.apache.hadoop.ipc.Client$Connection.run(Client.java:847)
> {noformat}
> This arises from an attempt to write an rfile.The test should be resilient here (and
for other file system operations) so that the test can continue once failover has completed.



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