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From "ChiaPing Tsai (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-16224) Reduce the number of RPCs for the large PUTs
Date Sun, 31 Jul 2016 09:34:20 GMT

     [ https://issues.apache.org/jira/browse/HBASE-16224?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

ChiaPing Tsai updated HBASE-16224:
----------------------------------
    Status: Patch Available  (was: Open)

> Reduce the number of RPCs for the large PUTs
> --------------------------------------------
>
>                 Key: HBASE-16224
>                 URL: https://issues.apache.org/jira/browse/HBASE-16224
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: ChiaPing Tsai
>            Assignee: ChiaPing Tsai
>            Priority: Minor
>         Attachments: HBASE-16224-v1.patch, HBASE-16224-v2.patch, HBASE-16224-v3.patch,
HBASE-16224-v4.patch, experiment.xlsx
>
>
> This patch is proposed to reduce the number of RPC for the large PUTs 
> The number and data size of write thread(SingleServerRequestRunnable) is a result of
three main factors:
> 1) The flush size taken by BufferedMutatorImpl#backgroundFlushCommits
> 2) The limit of task number
> 3) ClientBackoffPolicy
> A lot of threads created with less MUTATIONs is a result of two reason: 1) many regions
of target table are in different server. 2) flush size in step one is summed by “all”
server rather than “individual” server
> This patch removes the limit of flush size in step one and add maximum size to submit
for each server in the AsyncProcess



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