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https://issues.apache.org/jira/browse/HDFS-1597?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Todd Lipcon updated HDFS-1597:
------------------------------
Attachment: illustrate-test-failure.txt
Here's a little hack I did that makes the test fail reliably with this error:
Caused by: java.lang.AssertionError: no editlog streams
at
org.apache.hadoop.hdfs.server.namenode.FSEditLog.logSync(FSEditLog.java:485)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.mkdirs(FSNamesystem.java:2071)
at
org.apache.hadoop.hdfs.server.namenode.TestEditLogRace$Transactions.run(TestEditLogRace.java:115)
at java.lang.Thread.run(Thread.java:662)
(obviously not for commit, just to trigger the race)
> Misplaced assertion in FSEditLog.logSync
> ----------------------------------------
>
> Key: HDFS-1597
> URL: https://issues.apache.org/jira/browse/HDFS-1597
> Project: Hadoop HDFS
> Issue Type: Bug
> Affects Versions: 0.22.0
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Priority: Critical
> Fix For: 0.22.0
>
> Attachments: illustrate-test-failure.txt
>
>
> The top of FSEditLog.logSync has the following assertion:
> {code}
> assert editStreams.size() > 0 : "no editlog streams";
> {code}
> which should actually come after checking to see if the sync was already
> batched in by another thread.
> Will describe the race in a comment.
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