Dave Latham created HBASE-8025:
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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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