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https://issues.apache.org/jira/browse/HDFS-8469?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15805913#comment-15805913
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Hadoop QA commented on HDFS-8469:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m
0s{color} | {color:blue} Docker mode activated. {color} |
| {color:red}-1{color} | {color:red} patch {color} | {color:red} 0m 7s{color}
| {color:red} HDFS-8469 does not apply to trunk. Rebase required? Wrong Branch?
See https://wiki.apache.org/hadoop/HowToContribute for help. {color} |
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|| Subsystem || Report/Notes ||
| JIRA Issue | HDFS-8469 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12734900/HDFS-8469.001.patch |
| Console output |
https://builds.apache.org/job/PreCommit-HDFS-Build/18061/console |
| Powered by | Apache Yetus 0.5.0-SNAPSHOT http://yetus.apache.org |
This message was automatically generated.
> Lockfiles are not being created for datanode storage directories
> ----------------------------------------------------------------
>
> Key: HDFS-8469
> URL: https://issues.apache.org/jira/browse/HDFS-8469
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: datanode
> Affects Versions: 2.4.0
> Reporter: Colin P. McCabe
> Assignee: Colin P. McCabe
> Attachments: HDFS-8469.001.patch
>
>
> Lockfiles are not being created for datanode storage directories. Due to a
> mixup, we are initializing the StorageDirectory class with shared=true (an
> option which was only intended for NFS directories used to implement NameNode
> HA). Setting shared=true disables lockfile generation and prints a log
> message like this:
> {code}
> 2015-05-22 11:45:16,367 INFO common.Storage (Storage.java:lock(675)) -
> Locking is disabled for
> /home/cmccabe/hadoop2/hadoop-hdfs-project/hadoop-hdfs/target/
> test/data/dfs/data/data5/current/BP-122766180-127.0.0.1-1432320314834
> {code}
> Without lock files, we could accidentally spawn two datanode processes using
> the same directories without realizing it.
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