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Posted to issues@hbase.apache.org by "binlijin (JIRA)" <ji...@apache.org> on 2016/11/09 07:05:58 UTC
[jira] [Comment Edited] (HBASE-16570) Compute region locality in
parallel at startup
[ https://issues.apache.org/jira/browse/HBASE-16570?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15649981#comment-15649981 ]
binlijin edited comment on HBASE-16570 at 11/9/16 7:05 AM:
-----------------------------------------------------------
The new added UT case is to make sure after RegionLocationFinder#refreshAndWait, regions's HDFSBlocksDistribution have cached in master's memory.
And change lastFullRefresh is to make HMaster start up faster when backup master becomes active master, we have encounter a longer startup(backup master becomes active master) which last 2.5 hours because namenode in high load, and after the change we only less than 5 minutes.
- private long lastFullRefresh = 0;
+ // Do not scheduleFullRefresh at master startup
+ private long lastFullRefresh = EnvironmentEdgeManager.currentTime();
was (Author: aoxiang):
The new added UT case is to make sure after RegionLocationFinder#refreshAndWait, regions's HDFSBlocksDistribution have cached in master's memory.
And change lastFullRefresh is to make HMaster start up faster when become active master from backup master, we have encounter a longer startup(backup master become active master) which last 2.5 hours because namenode in high load.
- private long lastFullRefresh = 0;
+ // Do not scheduleFullRefresh at master startup
+ private long lastFullRefresh = EnvironmentEdgeManager.currentTime();
> Compute region locality in parallel at startup
> ----------------------------------------------
>
> Key: HBASE-16570
> URL: https://issues.apache.org/jira/browse/HBASE-16570
> Project: HBase
> Issue Type: Sub-task
> Reporter: binlijin
> Assignee: binlijin
> Fix For: 2.0.0, 1.4.0, 1.3.1
>
> Attachments: HBASE-16570-master_V1.patch, HBASE-16570-master_V2.patch, HBASE-16570-master_V3.patch, HBASE-16570-master_V4.patch, HBASE-16570.branch-1.3-addendum.patch, HBASE-16570_addnum.patch, HBASE-16570_addnum_v2.patch, HBASE-16570_addnum_v3.patch, HBASE-16570_addnum_v4.patch, HBASE-16570_addnum_v5.patch, HBASE-16570_addnum_v6.patch, HBASE-16570_addnum_v7.patch
>
>
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