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Hudson commented on HBASE-13996: -------------------------------- SUCCESS: Integrated in HBase-1.2-IT #108 (See [https://builds.apache.org/job/HBase-1.2-IT/108/]) HBASE-13996 Add write sniffing in canary (Liu Shaohui) (apurtell: rev 8eb573f83503cb30bd79faa651e28c7d0917ba5a) * hbase-server/src/main/java/org/apache/hadoop/hbase/tool/Canary.java * hbase-server/src/main/jamon/org/apache/hadoop/hbase/tmpl/master/MasterStatusTmpl.jamon * hbase-common/src/main/java/org/apache/hadoop/hbase/HConstants.java * src/main/asciidoc/_chapters/ops_mgt.adoc > Add write sniffing in canary > ---------------------------- > > Key: HBASE-13996 > URL: https://issues.apache.org/jira/browse/HBASE-13996 > Project: HBase > Issue Type: Improvement > Components: canary > Affects Versions: 0.98.13, 1.1.0.1 > Reporter: Liu Shaohui > Assignee: Liu Shaohui > Fix For: 2.0.0, 0.98.14, 1.2.0, 1.3.0 > > Attachments: HBASE-13996-0.98.patch, HBASE-13996-branch-1.patch, > HBASE-13996-v001.diff, HBASE-13996-v002.diff, HBASE-13996-v003.diff, > HBASE-13996-v004.diff > > > Currently the canary tool only sniff the read operations, it's hard to > finding the problem in write path. > To support the write sniffing, we create a system table named '_canary_' in > the canary tool. And the tool will make sure that the region number is large > than the number of the regionserver and the regions will be distributed onto > all regionservers. > Periodically, the tool will put data to these regions to calculate the write > availability of HBase and send alerts if needed. -- This message was sent by Atlassian JIRA (v6.3.4#6332)