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From "Dave Latham (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-8025) zkcli fails when SERVER_GC_OPTS is enabled
Date Thu, 07 Mar 2013 14:44:14 GMT
Dave Latham created HBASE-8025:

             Summary: zkcli fails when SERVER_GC_OPTS is enabled
                 Key: HBASE-8025
                 URL: https://issues.apache.org/jira/browse/HBASE-8025
             Project: HBase
          Issue Type: Bug
    Affects Versions: 0.94.4
            Reporter: Dave Latham
             Fix For: 0.95.0, 0.98.0, 0.94.7

HBASE-7091 added logic to separate GC logging options for some client commands versus server
commands.  It uses a list of known client commands ("shell" "hbck" "hlog" "hfile" "zkcli")
and uses the server GC logging options for all other invocations of bin/hbase.  When zkcli
is invoked, it in turn invokes "hbase org.apache.hadoop.hbase.zookeeper.ZooKeeperMainServerArg"
to gather the server command line arguments, but because org.apache.hadoop.hbase.zookeeper.ZooKeeperMainServerArg
is not on the white list it enables server GC logging, which causes extra output that causes
the zkcli invocation to break.  HBASE-1753 addressed this but the fix only solved the array
syntax - not the white list.

There are many other tools you can invoke that are more likely to "client" than "server" options.
For example, "bin/hbase org.jruby.Main region_mover.rb" or "bin/hbase org.apache.hadoop.hbase.mapreduce.CopyTable"
or "bin/hbase version" or "bin/hbase org.apache.hadoop.hbase.mapreduce.Export". The whitelist
of server commands is shorter and easier to maintain than a whitelist of client commands.

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