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From "Yiqun Lin (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-10603) Flaky test org.apache.hadoop.hdfs.server.namenode.snapshot.TestOpenFilesWithSnapshot.testWithCheckpoint
Date Mon, 11 Jul 2016 07:46:11 GMT

     [ https://issues.apache.org/jira/browse/HDFS-10603?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Yiqun Lin updated HDFS-10603:
-----------------------------
    Attachment: HDFS-10603.002.patch

I found the test {{TestOpenFilesWithSnapshot#testOpenFilesWithRename}} also failed sometimes.
The stack infos:
{code}
org.apache.hadoop.hdfs.server.namenode.snapshot.TestOpenFilesWithSnapshot
testOpenFilesWithRename(org.apache.hadoop.hdfs.server.namenode.snapshot.TestOpenFilesWithSnapshot)
 Time elapsed: 14.069 sec  <<< ERROR!
java.io.IOException: Timed out waiting for Mini HDFS Cluster to start
	at org.apache.hadoop.hdfs.MiniDFSCluster.waitClusterUp(MiniDFSCluster.java:1363)
	at org.apache.hadoop.hdfs.MiniDFSCluster.restartNameNode(MiniDFSCluster.java:2041)
	at org.apache.hadoop.hdfs.MiniDFSCluster.restartNameNode(MiniDFSCluster.java:2011)
	at org.apache.hadoop.hdfs.server.namenode.snapshot.TestOpenFilesWithSnapshot.testOpenFilesWithRename(TestOpenFilesWithSnapshot.java:210)
{code}
Then I made a code review in other tests in {{TestOpenFilesWithSnapshot}} and did the fix.
Post the new patch, pending jenkins.

> Flaky test org.apache.hadoop.hdfs.server.namenode.snapshot.TestOpenFilesWithSnapshot.testWithCheckpoint
> -------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-10603
>                 URL: https://issues.apache.org/jira/browse/HDFS-10603
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: hdfs, namenode
>            Reporter: Yongjun Zhang
>            Assignee: Yiqun Lin
>         Attachments: HDFS-10603.001.patch, HDFS-10603.002.patch, HDFS-10603.002.patch
>
>
> Test 
> org.apache.hadoop.hdfs.server.namenode.snapshot.TestOpenFilesWithSnapshot.testWithCheckpoint
> may fail intermittently as
> {code}
> -------------------------------------------------------
>  T E S T S
> -------------------------------------------------------
> Running org.apache.hadoop.hdfs.server.namenode.snapshot.TestOpenFilesWithSnapshot
> Tests run: 7, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 63.386 sec <<<
FAILURE! - in org.apache.hadoop.hdfs.server.namenode.snapshot.TestOpenFilesWithSnapshot
> testWithCheckpoint(org.apache.hadoop.hdfs.server.namenode.snapshot.TestOpenFilesWithSnapshot)
 Time elapsed: 15.092 sec  <<< ERROR!
> java.io.IOException: Timed out waiting for Mini HDFS Cluster to start
> 	at org.apache.hadoop.hdfs.MiniDFSCluster.waitClusterUp(MiniDFSCluster.java:1363)
> 	at org.apache.hadoop.hdfs.MiniDFSCluster.restartNameNode(MiniDFSCluster.java:2041)
> 	at org.apache.hadoop.hdfs.MiniDFSCluster.restartNameNode(MiniDFSCluster.java:2011)
> 	at org.apache.hadoop.hdfs.server.namenode.snapshot.TestOpenFilesWithSnapshot.testWithCheckpoint(TestOpenFilesWithSnapshot.java:94)
> Results :
> Tests in error: 
>   TestOpenFilesWithSnapshot.testWithCheckpoint:94 ยป IO Timed out waiting for Min...
> Tests run: 7, Failures: 0, Errors: 1, Skipped: 0
> {code}



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