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From "Vinod Kumar Vavilapalli (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-11368) Fix SSLFactory truststore reloader thread leak in KMSClientProvider
Date Sun, 30 Aug 2015 20:42:45 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-11368?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vinod Kumar Vavilapalli updated HADOOP-11368:
---------------------------------------------
    Fix Version/s: 2.6.1

Pulled this into 2.6.1 after [~ajisakaa] verified that the patch applies cleanly. Ran compilation
and TestKMS before the push.

> Fix SSLFactory truststore reloader thread leak in KMSClientProvider
> -------------------------------------------------------------------
>
>                 Key: HADOOP-11368
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11368
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: kms
>    Affects Versions: 2.5.0
>            Reporter: Arun Suresh
>            Assignee: Arun Suresh
>              Labels: 2.6.1-candidate
>             Fix For: 2.6.1, 2.7.0
>
>         Attachments: HADOOP-11368.1.patch
>
>
> When a {{KMSClientProvider}} is initialized in _ssl_ mode, It  initializes a {{SSLFactory}}
object. This in-turn creates an instance of {{ReloadingX509TrustManager}} which, on initialization,
starts a trust store reloader thread.
> It is noticed that over time, as a number of short lived {{KMSClientProvider}} instances
are created and destroyed, the trust store manager threads are not interrupted/killed and
remain in TIMED_WAITING state. A Thread dump shows multiple:
> {noformat}
> "Truststore reloader thread" daemon prio=10 tid=0x00007fb1cf942800 nid=0x4e99 waiting
on condition [0x00007fb0485f5000]
>    java.lang.Thread.State: TIMED_WAITING (sleeping)
>         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:662)
>    Locked ownable synchronizers:
>         - None
> {noformat}
>  



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