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https://issues.apache.org/jira/browse/HDFS-14037?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Takanobu Asanuma updated HDFS-14037:
------------------------------------
       Resolution: Fixed
    Fix Version/s: 3.1.3
                   3.2.1
                   3.3.0
                   3.0.4
           Status: Resolved  (was: Patch Available)

Committed to trunk, branch-3.2, branch-3.1 and branch-3.0.

Thanks for your reviews, [~ajisakaa] and [~brahmareddy].

> Fix SSLFactory truststore reloader thread leak in URLConnectionFactory
> ----------------------------------------------------------------------
>
>                 Key: HDFS-14037
>                 URL: https://issues.apache.org/jira/browse/HDFS-14037
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: hdfs-client, webhdfs
>            Reporter: Takanobu Asanuma
>            Assignee: Takanobu Asanuma
>            Priority: Major
>             Fix For: 3.0.4, 3.3.0, 3.2.1, 3.1.3
>
>         Attachments: HDFS-14037.1.patch, HDFS-14037.2.patch
>
>
> This is reported by [~yoshiata]. It is a similar issue as HADOOP-11368 and 
> YARN-5309 in URLConnectionFactory.
> {quote}SSLFactory in newSslConnConfigurator and subsequently creates the 
> ReloadingX509TrustManager instance which in turn starts a trust store 
> reloader thread.
> However, the SSLFactory is never destroyed and hence the trust store reloader 
> threads are not killed.
> {quote}
> We observed many leaked threads when we used swebhdfs via NiFi cluster.
> {noformat}
> "Truststore reloader thread" Id=221 TIMED_WAITING  on null
>         at java.lang.Thread.sleep(Native Method)
>         at 
> org.apache.hadoop.security.ssl.ReloadingX509TrustManager.run(ReloadingX509TrustManager.java:189)
>         at java.lang.Thread.run(Thread.java:748)
> {noformat}



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