[jira] [Created] (HBASE-10293) Master and RS GC logs can conflict when run on same host

["Nick Dimiduk (JIRA)" <ji...@apache.org>]

Nick Dimiduk created HBASE-10293:
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             Summary: Master and RS GC logs can conflict when run on same host
                 Key: HBASE-10293
                 URL: https://issues.apache.org/jira/browse/HBASE-10293
             Project: HBase
          Issue Type: Bug
          Components: scripts
            Reporter: Nick Dimiduk
             Fix For: 0.96.0


My issue manifests when I uncomment the line {{export SERVER_GC_OPTS=...}} in hbase-env.sh and start HBase. It's a single node in distributed mode, so both a Master and RegionServer are started on that host. Both start commands are run in the same minute, so only one gc.log-`date` file is created. `lsof` indicates two processes are writing to that file and the output of `ps` confirms they both received the same {{-Xloggc:/grid/0/var/log/hbase/gc.log-201401071515}} argument.

Presumably, the same will happen for folks running the thrift and rest gateways on the same box (any java process itemized in the server_cmds array in bin/hbase).

Related (the reason I discovered this issue in the first place), stopping the master process results in its gc.log being truncated.



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