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https://issues.apache.org/jira/browse/HCATALOG-370?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13424099#comment-13424099
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Arup Malakar edited comment on HCATALOG-370 at 7/27/12 7:57 PM:
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Added some padding for expiry time on top of guava expiry time to make sure
that items closed() are for sure expired and would never be returned by guava.
Diff: https://reviews.apache.org/r/6114/diff/3-4/#index_header
was (Author: amalakar):
Added some padding for expiry time on top of guava expiry time to make sure
that items closed() are for sure expired and would never be returned by guava.
> Create a HiveMetaStoreClient cache in hcatalog
> ----------------------------------------------
>
> Key: HCATALOG-370
> URL: https://issues.apache.org/jira/browse/HCATALOG-370
> Project: HCatalog
> Issue Type: Improvement
> Components: client
> Affects Versions: 0.4
> Reporter: Rohini Palaniswamy
> Assignee: Arup Malakar
> Priority: Minor
> Attachments: J370-patch1.diff, J370-patch2.diff, J370.patch
>
>
> Hcat makes multiple calls to hivemetastore client and every time the
> connection is setup and destroyed which is costly. It would be nice to have a
> centralized cache, that has a connection per unique identifier (ugi,hcat
> server uri and anything else mandatory). Instead of creating clients all over
> the code, it can be retrieved from this cache. Connections in the cache can
> be closed using WeakReference and ReferenceQueue or based on some time
> interval.
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