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From "Vladimir Rodionov (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-15491) Reuse byte buffers in AsyncRpcClient
Date Sat, 19 Mar 2016 20:43:33 GMT

     [ https://issues.apache.org/jira/browse/HBASE-15491?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vladimir Rodionov updated HBASE-15491:
--------------------------------------
    Status: Patch Available  (was: Open)

> Reuse byte buffers in AsyncRpcClient
> ------------------------------------
>
>                 Key: HBASE-15491
>                 URL: https://issues.apache.org/jira/browse/HBASE-15491
>             Project: HBase
>          Issue Type: Bug
>          Components: Client
>    Affects Versions: 2.0.0
>            Reporter: Vladimir Rodionov
>            Assignee: Vladimir Rodionov
>             Fix For: 2.0.0
>
>         Attachments: HBASE-15491-v1.patch
>
>
> IPCUtil.buildCellBlock is used by both server and client. Server provides BoundedByteBufferPool
for buffers reuse, client code does not do that. This results in additional memory pressure
on a client side, because buffers are allocated on every call to IPCUtil.buildCellBlock.
> My own local tests (with patch) show approximately 8-10% reduction in object allocation
rate on a client side (with HBASE-15479 as well). 



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