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From "Phabricator (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-5033) Opening/Closing store in parallel to reduce region open/close time
Date Thu, 22 Dec 2011 06:39:33 GMT

     [ https://issues.apache.org/jira/browse/HBASE-5033?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Phabricator updated HBASE-5033:
-------------------------------

    Attachment: D933.5.patch

Liyin updated the revision "[jira][HBASE-5033][[89-fb]]Opening/Closing store in parallel to
reduce region open/close time".
Reviewers: Kannan, mbautin, Karthik, JIRA

  Address @kannan 's comments.

REVISION DETAIL
  https://reviews.facebook.net/D933

AFFECTED FILES
  src/main/java/org/apache/hadoop/hbase/HConstants.java
  src/main/java/org/apache/hadoop/hbase/master/HMaster.java
  src/main/java/org/apache/hadoop/hbase/regionserver/HRegion.java
  src/main/java/org/apache/hadoop/hbase/regionserver/Store.java
  src/main/java/org/apache/hadoop/hbase/util/Threads.java

                
> Opening/Closing store in parallel to reduce region open/close time
> ------------------------------------------------------------------
>
>                 Key: HBASE-5033
>                 URL: https://issues.apache.org/jira/browse/HBASE-5033
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Liyin Tang
>            Assignee: Liyin Tang
>         Attachments: D933.1.patch, D933.2.patch, D933.3.patch, D933.4.patch, D933.5.patch
>
>
> Region servers are opening/closing each store and each store file for every store in
sequential fashion, which may cause inefficiency to open/close regions. 
> So this diff is to open/close each store in parallel in order to reduce region open/close
time. Also it would help to reduce the cluster restart time.
> 1) Opening each store in parallel
> 2) Loading each store file for every store in parallel
> 3) Closing each store in parallel
> 4) Closing each store file for every store in parallel.

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