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Hadoop QA commented on HBASE-16488: ----------------------------------- | (x) *{color:red}-1 overall{color}* | \\ \\ || Vote || Subsystem || Runtime || Comment || | {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 0s {color} | {color:blue} Docker mode activated. {color} | | {color:red}-1{color} | {color:red} docker {color} | {color:red} 0m 5s {color} | {color:red} Docker failed to build yetus/hbase:e01ee2f. {color} | \\ \\ || Subsystem || Report/Notes || | JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12865227/HBASE-16488.v6-branch-1.patch | | JIRA Issue | HBASE-16488 | | Console output | https://builds.apache.org/job/PreCommit-HBASE-Build/6584/console | | Powered by | Apache Yetus 0.3.0 http://yetus.apache.org | This message was automatically generated. > Starting namespace and quota services in master startup asynchronizely > ---------------------------------------------------------------------- > > Key: HBASE-16488 > URL: https://issues.apache.org/jira/browse/HBASE-16488 > Project: HBase > Issue Type: Improvement > Components: master > Affects Versions: 2.0.0, 1.3.0, 1.0.3, 1.4.0, 1.1.5, 1.2.2 > Reporter: Stephen Yuan Jiang > Assignee: Stephen Yuan Jiang > Attachments: HBASE-16488.v1-branch-1.patch, > HBASE-16488.v1-master.patch, HBASE-16488.v2-branch-1.patch, > HBASE-16488.v2-branch-1.patch, HBASE-16488.v3-branch-1.patch, > HBASE-16488.v3-branch-1.patch, HBASE-16488.v4-branch-1.patch, > HBASE-16488.v5-branch-1.patch, HBASE-16488.v6-branch-1.patch > > > From time to time, during internal IT test and from customer, we often see > master initialization failed due to namespace table region takes long time to > assign (eg. sometimes split log takes long time or hanging; or sometimes RS > is temporarily not available; sometimes due to some unknown assignment > issue). In the past, there was some proposal to improve this situation, eg. > HBASE-13556 / HBASE-14190 (Assign system tables ahead of user region > assignment) or HBASE-13557 (Special WAL handling for system tables) or > HBASE-14623 (Implement dedicated WAL for system tables). > This JIRA proposes another way to solve this master initialization fail > issue: namespace service is only used by a handful operations (eg. create > table / namespace DDL / get namespace API / some RS group DDL). Only quota > manager depends on it and quota management is off by default. Therefore, > namespace service is not really needed for master to be functional. So we > could start namespace service asynchronizely without blocking master startup. > -- This message was sent by Atlassian JIRA (v6.3.15#6346)