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ASF subversion and git services commented on ACCUMULO-2228:
-----------------------------------------------------------
Commit 06f80305e4587f519cb3dfae0686b52b32e7a0b8 in branch refs/heads/1.4.5-SNAPSHOT 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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