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Date: Wed, 22 Jan 2014 18:15:20 +0000 (UTC)
From: "Bill Havanki (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (ACCUMULO-2228) Security randomwalk fails when
 namenode dies before bulk import
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    [ https://issues.apache.org/jira/browse/ACCUMULO-2228?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13878936#comment-13878936 ] 

Bill Havanki commented on ACCUMULO-2228:
----------------------------------------

I'll update the randomwalk README to warn that errors like this are likely without HADOOP-9792 in place. The testing I'm doing must be done on 2.0.0, but we recommend using 2.2.0, so trying to fix it here isn't worthwhile.

See ACCUMULO-2227 for more discussion.

> 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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