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https://issues.apache.org/jira/browse/HCATALOG-469?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Arup Malakar updated HCATALOG-469:
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Attachment: J370-patch9.diff
I have added synchronization to avoid the mentioned situation.
[The patch could be applied to both trunk/branch]
> HiveClientCache may return a closed client
> ------------------------------------------
>
> Key: HCATALOG-469
> URL: https://issues.apache.org/jira/browse/HCATALOG-469
> Project: HCatalog
> Issue Type: Bug
> Affects Versions: 0.4, 0.5
> Reporter: Arup Malakar
> Assignee: Arup Malakar
> Attachments: J370-patch9.diff
>
>
> HiveClientCache does a health check before returning the client. During the
> health check the client may get closed via the RemovalListener if
> 1) No one is else is using it
> 2) It is beyond expiry time for the client
> 3) Another thread access the case which may trigger the RemovalListener
> In this case the get() call would end up returning a closed client.
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