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From "Robert Chansler (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HDFS-525) ListPathsServlet.java uses static SimpleDateFormat that has threading issues
Date Fri, 28 Aug 2009 17:54:32 GMT

     [ https://issues.apache.org/jira/browse/HDFS-525?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Robert Chansler updated HDFS-525:
---------------------------------

    Release Note: Uses of SimpleDateFormat were changed to use a thread local instance of
the class. This corrects a problem where the name node's web services became unresponsive
requiring a restart of the name system.

> 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
>          Components: name-node
>            Reporter: Suresh Srinivas
>            Assignee: Suresh Srinivas
>             Fix For: 0.20.1, 0.21.0
>
>         Attachments: HDFS-525.1.patch, HDFS-525.2.patch, HDFS-525.patch, HDFS-525.patch,
HDFS-525.rel20.patch, HDFS.525-3.patch, HDFS.525-3.patch, HDFS.525-3v20.patch
>
>
> SimpleDateFormat is not thread safe. Multiple threads accessing the servlet can cause
threading issues

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