hive-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Sankar Hariappan (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-20192) HS2 with embedded metastore is leaking JDOPersistenceManager objects.
Date Wed, 18 Jul 2018 17:24:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-20192?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sankar Hariappan updated HIVE-20192:
------------------------------------
    Attachment: HIVE-20192.01.patch

> HS2 with embedded metastore is leaking JDOPersistenceManager objects.
> ---------------------------------------------------------------------
>
>                 Key: HIVE-20192
>                 URL: https://issues.apache.org/jira/browse/HIVE-20192
>             Project: Hive
>          Issue Type: Bug
>          Components: HiveServer2
>    Affects Versions: 3.0.0, 3.1.0, 4.0.0
>            Reporter: Sankar Hariappan
>            Assignee: Sankar Hariappan
>            Priority: Major
>              Labels: HiveServer2, pull-request-available
>             Fix For: 4.0.0
>
>         Attachments: HIVE-20192.01.patch
>
>
> Hiveserver2 instances where crashing every 3-4 days and observed HS2 in on unresponsive
state. Also, observed that the FGC collection happening regularly
> From JXray report it is seen that pmCache(List of JDOPersistenceManager objects) is occupying
84% of the heap and there are around 16,000 references of UDFClassLoader.
> {code:java}
> 10,759,230K (84.7%) Object tree for GC root(s) Java Static org.apache.hadoop.hive.metastore.ObjectStore.pmf
> - org.datanucleus.api.jdo.JDOPersistenceManagerFactory.pmCache ↘ 10,744,419K (84.6%),
1 reference(s)
>   - j.u.Collections$SetFromMap.m ↘ 10,744,419K (84.6%), 1 reference(s)
>     - {java.util.concurrent.ConcurrentHashMap}.keys ↘ 10,743,764K (84.5%), 16,872 reference(s)
>       - org.datanucleus.api.jdo.JDOPersistenceManager.ec ↘ 10,738,831K (84.5%), 16,872
reference(s)
>         ... 3 more references together retaining 4,933K (< 0.1%)
>     - java.util.concurrent.ConcurrentHashMap self 655K (< 0.1%), 1 object(s)
>       ... 2 more references together retaining 48b (< 0.1%)
> - org.datanucleus.api.jdo.JDOPersistenceManagerFactory.nucleusContext ↘ 14,810K (0.1%),
1 reference(s)
> ... 3 more references together retaining 96b (< 0.1%){code}
> When the RawStore object is re-created, it is not allowed to be updated into the ThreadWithGarbageCleanup.threadRawStoreMap
which leads to the new RawStore never gets cleaned-up when the thread exit.
>  



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)

Mime
View raw message