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Hadoop QA commented on HBASE-11644: ----------------------------------- {color:red}-1 overall{color}. Here are the results of testing the latest attachment http://issues.apache.org/jira/secure/attachment/12668748/HBASE-11644-Sep-15.diff against trunk revision . ATTACHMENT ID: 12668748 {color:green}+1 @author{color}. The patch does not contain any @author tags. {color:green}+1 tests included{color}. The patch appears to include 16 new or modified tests. {color:red}-1 patch{color}. The patch command could not apply the patch. Console output: https://builds.apache.org/job/PreCommit-HBASE-Build/10888//console This message is automatically generated. > External MOB compaction tools > ----------------------------- > > Key: HBASE-11644 > URL: https://issues.apache.org/jira/browse/HBASE-11644 > Project: HBase > Issue Type: Sub-task > Components: Compaction, master > Affects Versions: hbase-11339 > Reporter: Jingcheng Du > Assignee: Jingcheng Du > Fix For: hbase-11339 > > Attachments: HBASE-11644-Sep-15.diff, HBASE-11644.diff > > > From the design doc, mob files are not involved in the normal HBase > compaction process. This means deleted mobs would still take up space and > that we never really merge mob files that accrue over time. Currently, MOBs > depend on two external tools: > 1) A TTL cleaner that removes mobs that have passed their TTL or exceeded > minVersions. > 2) A 'sweep tool' cleaner that remove mobs that have had their references > deleted and merges small files into larger ones. > Today the tools are triggered by admins. The longer term goal would be to > integrate them into hbase such that by default mobs are cleaned. The tools > will be preserved however so that advanced admins can disable automatic > cleanups and manually trigger these compaction like operaitons. #1 would > likely be a chore in the master while #2 requires some design work to > integrate into hbase. -- This message was sent by Atlassian JIRA (v6.3.4#6332)