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https://issues.apache.org/jira/browse/HBASE-951?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12642378#action_12642378
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stack commented on HBASE-951:
-----------------------------
Client should give up if it gets a MasterNotRunningException when trying to run
the shutdown? Should MNRE subclass DoNotRetryIOException?
> Either shut down master or let it finish cleanup
> ------------------------------------------------
>
> Key: HBASE-951
> URL: https://issues.apache.org/jira/browse/HBASE-951
> Project: Hadoop HBase
> Issue Type: Bug
> Components: master
> Reporter: Jim Kellerman
> Assignee: Jim Kellerman
> Fix For: 0.19.0
>
>
> When HMaster is called from the command line, don't try to issue a shutdown
> request if it is already in the process of shutting down.
> The problem is that HBaseAdmin is trying to connect to the master, and the
> master has already shut down its server
> threads, so it cannot respond to the HBaseAdmin.shutdown() request.
> It is harmless with respect to data retention/loss, but obviously annoying
> from the user's point of view.
> HBaseAdmin trys to contact the master for HMaster -stop, but if the
> master is already shutting down, HBaseAdmin does not know that and keeps
> retrying as follows:
> {code}
> org.apache.hadoop.hbase.MasterNotRunningException:
> content-repo.cluster.powerset.com:60000
> at
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.getMaster(HConnectionManager.java:221)
> at
> org.apache.hadoop.hbase.client.HBaseAdmin.<init>(HBaseAdmin.java:67)
> at org.apache.hadoop.hbase.master.HMaster.doMain(HMaster.java:799)
> at org.apache.hadoop.hbase.master.HMaster.main(HMaster.java:818)
> 2008-10-21 18:23:35,827 INFO org.apache.hadoop.hbase.master.HMaster: Waiting
> for dfs to exit safe mode...
> 2008-10-21 18:23:45,847 INFO org.apache.hadoop.hbase.master.HMaster: Waiting
> for dfs to exit safe mode...
> 2008-10-21 18:23:55,858 INFO org.apache.hadoop.hbase.master.HMaster: Waiting
> for dfs to exit safe mode...
> {code}
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