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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