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https://issues.apache.org/jira/browse/HADOOP-5439?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12680075#action_12680075
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Zheng Shao commented on HADOOP-5439:
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The new code block may have a concurrent issue in case 2 clients are operating
on the same file.
We should fix the slow response of create with overwrite. Some profiling will
be very useful here to identify the real cause.
> FileSystem.create() with overwrite param specified sometimes takes a long
> time to return.
> -----------------------------------------------------------------------------------------
>
> Key: HADOOP-5439
> URL: https://issues.apache.org/jira/browse/HADOOP-5439
> Project: Hadoop Core
> Issue Type: Bug
> Affects Versions: 0.19.0
> Reporter: he yongqiang
>
> If a file already exists, it takes a long time for the overwrite create to
> return.
> {code}
> fs.create(path_1, true);
> {code}
> sometimes takes a long time.
> Instead, the code:
> {code}
> if (fs.exists(path_1))
> fs.delete(path_1);
> fs.create(path_1);
> {code}
> works pretty well.
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