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Hadoop QA commented on HBASE-21487: ----------------------------------- | (x) *{color:red}-1 overall{color}* | \\ \\ || Vote || Subsystem || Runtime || Comment || | {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 13s{color} | {color:blue} Docker mode activated. {color} | | {color:red}-1{color} | {color:red} patch {color} | {color:red} 0m 6s{color} | {color:red} HBASE-21487 does not apply to branch-2. Rebase required? Wrong Branch? See https://yetus.apache.org/documentation/0.8.0/precommit-patchnames for help. {color} | \\ \\ || Subsystem || Report/Notes || | Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hbase:42ca976 | | JIRA Issue | HBASE-21487 | | JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12955334/HBASE-21487-branch-2.002.patch | | Console output | https://builds.apache.org/job/PreCommit-HBASE-Build/15626/console | | Powered by | Apache Yetus 0.8.0 http://yetus.apache.org | This message was automatically generated. > Concurrent modify table ops can lead to unexpected results > ---------------------------------------------------------- > > Key: HBASE-21487 > URL: https://issues.apache.org/jira/browse/HBASE-21487 > Project: HBase > Issue Type: Bug > Affects Versions: 3.0.0, 2.0.0 > Reporter: Syeda Arshiya Tabreen > Priority: Major > Fix For: 2.2.0 > > Attachments: HBASE-21487-branch-2.002.patch, > HBASE-21487-branch-2.v2.patch, HBASE-21487.branch-2.patch > > > Concurrent modifyTable or add/delete/modify columnFamily leads to incorrect > result. After HBASE-18893, The behavior of add/delete/modify column family > during concurrent operation is changed compare to branch-1.When one client > is adding cf2 and another one cf3 .. In branch-1 final result will be > cf1,cf2,cf3 but now either cf1,cf2 OR cf1,cf3 will be the outcome depending > on which ModifyTableProcedure executed finally.Its because new table > descriptor is constructed before submitting the ModifyTableProcedure in > HMaster class and its not guarded by any lock. > *Steps to reproduce* > 1.Create table 't' with column family 'f1' > 2.Client-1 and Client-2 requests to add column family 'f2' and 'f3' on table > 't' concurrently. > *Expected Result* > Table should have three column families(f1,f2,f3) > *Actual Result* > Table 't' will have column family either (f1,f2) or (f1,f3) -- This message was sent by Atlassian JIRA (v7.6.3#76005)