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https://issues.apache.org/jira/browse/ZOOKEEPER-3082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16561475#comment-16561475
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Hudson commented on ZOOKEEPER-3082:
-----------------------------------
SUCCESS: Integrated in Jenkins build ZooKeeper-trunk #128 (See
[https://builds.apache.org/job/ZooKeeper-trunk/128/])
ZOOKEEPER-3082: Fix server snapshot behavior when out of disk space (hanm: rev
78e4a1047c701006dd4ec8d09065eda0e7adedb5)
* (edit)
src/java/main/org/apache/zookeeper/server/persistence/FileTxnSnapLog.java
* (add)
src/java/test/org/apache/zookeeper/server/persistence/EmptySnapshotTest.java
> Fix server snapshot behavior when out of disk space
> ---------------------------------------------------
>
> Key: ZOOKEEPER-3082
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3082
> Project: ZooKeeper
> Issue Type: Bug
> Components: server
> Affects Versions: 3.6.0, 3.4.12, 3.5.5
> Reporter: Brian Nixon
> Assignee: Brian Nixon
> Priority: Minor
> Labels: pull-request-available
> Fix For: 3.6.0
>
> Time Spent: 1h 10m
> Remaining Estimate: 0h
>
> When the ZK server tries to make a snapshot and the machine is out of disk
> space, the snapshot creation fails and throws an IOException. An empty
> snapshot file is created, (probably because the server is able to create an
> entry in the dir) but is not able to write to the file.
>
> If snapshot creation fails, the server commits suicide. When it restarts, it
> will do so from the last known good snapshot. However, when it tries to make
> a snapshot again, the same thing happens. This results in lots of empty
> snapshot files being created. If eventually the DataDirCleanupManager garbage
> collects the good snapshot files then only the empty files remain. At this
> point, the server is well and truly screwed.
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