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https://issues.apache.org/jira/browse/HDFS-525?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12741056#action_12741056
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Suresh Srinivas commented on HDFS-525:
--------------------------------------

I will open another jira to move the the thread safe implementation of 
SimpleDateFormat to util package. This jira will also review the non thread 
safe static SimpleDateFormat usage in HDFS and map/reduce code.

> ListPathsServlet.java uses static SimpleDateFormat that has threading issues
> ----------------------------------------------------------------------------
>
>                 Key: HDFS-525
>                 URL: https://issues.apache.org/jira/browse/HDFS-525
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Suresh Srinivas
>            Assignee: Suresh Srinivas
>         Attachments: HDFS-525.patch
>
>
> SimpleDateFormat is not thread safe. Multiple threads accessing the servlet 
> can cause threading issues

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