[jira] [Updated] (HBASE-4805) Allow better control of resource consumption in HTable

["Lars Hofhansl (Updated) (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-4805?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Lars Hofhansl updated HBASE-4805:
---------------------------------

    Affects Version/s: 0.92.0
        Fix Version/s: 0.94.0

I'd be fine putting this in 0.92. It's not disruptive and entirely backwards compatible.
                
> Allow better control of resource consumption in HTable
> ------------------------------------------------------
>
>                 Key: HBASE-4805
>                 URL: https://issues.apache.org/jira/browse/HBASE-4805
>             Project: HBase
>          Issue Type: Bug
>          Components: client
>    Affects Versions: 0.92.0, 0.94.0
>            Reporter: Lars Hofhansl
>            Assignee: Lars Hofhansl
>             Fix For: 0.94.0
>
>         Attachments: 4805.txt
>
>
> From some internal discussions at Salesforce we concluded that we need better control over the resources (mostly threads) consumed by HTable when used in a AppServer with many client threads.
> Since HTable is not thread safe, the only options are cache them (in a custom thread local or using HTablePool) or to create them on-demand.
> I propose a simple change: Add a new constructor to HTable that takes an optional ExecutorService and HConnection instance. That would make HTable a pretty lightweight object and we would manage the ES and HC separately.
> I'll upload a patch a soon to get some feedback.

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