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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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lujie reassigned HDFS-14037:
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Assignee: (was: lujie)
> 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
> 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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