[ https://issues.apache.org/jira/browse/HBASE-19506?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16351788#comment-16351788 ]
Hadoop QA commented on HBASE-19506: ----------------------------------- | (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} patch {color} | {color:red} 0m 4s{color} | {color:red} HBASE-19506 does not apply to master. Rebase required? Wrong Branch? See https://yetus.apache.org/documentation/0.7.0/precommit-patchnames for help. {color} | \\ \\ || Subsystem || Report/Notes || | JIRA Issue | HBASE-19506 | | JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12908827/HBASE-19506-V01.patch | | Console output | https://builds.apache.org/job/PreCommit-HBASE-Build/11382/console | | Powered by | Apache Yetus 0.7.0 http://yetus.apache.org | This message was automatically generated. > Support variable sized chunks from ChunkCreator > ----------------------------------------------- > > Key: HBASE-19506 > URL: https://issues.apache.org/jira/browse/HBASE-19506 > Project: HBase > Issue Type: Sub-task > Reporter: Anastasia Braginsky > Priority: Major > Attachments: HBASE-19506-V01.patch > > > When CellChunkMap is created it allocates a special index chunk (or chunks) > where array of cell-representations is stored. When the number of > cell-representations is small, it is preferable to allocate a chunk smaller > than a default value which is 2MB. > On the other hand, those "non-standard size" chunks can not be used in pool. > On-demand allocations in off-heap are costly. So this JIRA is about to > investigate the trade of between memory usage and the final performance. -- This message was sent by Atlassian JIRA (v7.6.3#76005)