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https://issues.apache.org/jira/browse/GIRAPH-1076?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15342252#comment-15342252
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Hudson commented on GIRAPH-1076:
--------------------------------
FAILURE: Integrated in Giraph-trunk-Commit #1625 (See
[https://builds.apache.org/job/Giraph-trunk-Commit/1625/])
GIRAPH-1076 Race condition in FileTxnSnapLog (edunov:
[http://git-wip-us.apache.org/repos/asf?p=giraph.git&a=commit&h=2185f5946edfddcca8a5bcb76160212bfe2ef797])
* giraph-core/src/main/java/org/apache/giraph/zk/InProcessZooKeeperRunner.java
> Race condition in FileTxnSnapLog
> --------------------------------
>
> Key: GIRAPH-1076
> URL: https://issues.apache.org/jira/browse/GIRAPH-1076
> Project: Giraph
> Issue Type: Bug
> Reporter: Sergey Edunov
> Assignee: Sergey Edunov
>
> org.apache.zookeeper.server.persistence.FileTxnSnapLog has a potential for
> race condition:
> if (!this.dataDir.exists()) {
> if (!this.dataDir.mkdirs()) {
> throw new IOException("Unable to create data directory "
> + this.dataDir);
> }
> }
> If two threads try to create FileTxnSnapLog simultaneously it can trigger
> IOException.
> We saw this happening in Giraph where FileTxnSnapLog is being created by
> PurgeTask created by DatadirCleanupManager and by
> InProcessZooKeeperRunner#runFromConfig
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