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https://issues.apache.org/jira/browse/HBASE-4703?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13140210#comment-13140210
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nkeywal commented on HBASE-4703:
--------------------------------
I've managed to reproduce the stack on
testRowRange(org.apache.hadoop.hbase.regionserver.TestServerCustomProtocol;
after more than 10 tries. I am going to revert my change on this file. I
haven't been able to reproduce the others (two are caused by a
java.io.IOException: Too many open files).
I had a stack on
testWorkerAbort(org.apache.hadoop.hbase.master.TestDistributedLogSplitting),
but it's a stack I've already seen without this patch, so I don't think it's
related.
{noformat}
testWorkerAbort(org.apache.hadoop.hbase.master.TestDistributedLogSplitting)
Time elapsed: 231.598 sec <<< FAILURE!
java.lang.AssertionError: expected:<1> but was:<0>
at org.junit.Assert.fail(Assert.java:91)
at org.junit.Assert.failNotEquals(Assert.java:645)
at org.junit.Assert.assertEquals(Assert.java:126)
at org.junit.Assert.assertEquals(Assert.java:470)
at org.junit.Assert.assertEquals(Assert.java:454)
at
org.apache.hadoop.hbase.master.TestDistributedLogSplitting.testWorkerAbort(TestDistributedLogSplitting.java:294)
{noformat}
> Improvements in tests
> ---------------------
>
> Key: HBASE-4703
> URL: https://issues.apache.org/jira/browse/HBASE-4703
> Project: HBase
> Issue Type: Improvement
> Components: test
> Affects Versions: 0.92.0
> Environment: all
> Reporter: nkeywal
> Assignee: nkeywal
> Priority: Minor
> Attachments: 20111030_4703_all.patch, 20111030_4703_all.v2.patch,
> 20111030_4703_all.v3.patch, 20111030_4703_all.v4.patch
>
>
> Global:
> - when possible, make the test using the default cluster configuration for
> the number of region (1 instead of 2 or 3). This allows a faster stop/start,
> and is a step toward a shared cluster configuration.
> - 'sleep': lower or remove the sleep based synchronisation in the tests (in
> HBaseTestingUtility, TestGlobalMemStoreSize, TestAdmin,
> TestCoprocessorEndpoint, TestHFileOutputFormat, TestLruBlockCache,
> TestServerCustomProtocol, TestReplicationSink)
> - Optimize 'put' by setting setWriteToWAL to false, when the 'put' is big
> or in a loop. Not done for tests that rely on the WAL.
>
> Local issues:
> - TestTableInputFormatScan fully deletes the hadoop.tmp.dir directory on
> tearDown, that makes it impossible to use in // with another test using this
> directory
> - TestIdLock logs too much (9000 lines per seconds). Test time lowered to 15
> seconds to make it a part of the small subset
> - TestMemoryBoundedLogMessageBuffer useless System.out.println
> - io.hfile.TestReseekTo useless System.out.println
> - TestTableInputFormat does not shutdown the cluster
> - testGlobalMemStore does not shutdown the cluster
> - rest.client.TestRemoteAdmin: simplified, does not use local admin, single
> test instead of two.
> - HBaseTestingUtility#ensureSomeRegionServersAvailable starts only one
> server, should start the number of missing server instead.
> - TestMergeTool should starts/stops the dfs cluster with HBaseTestingUtility
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