Loknath Priyatham Teja Singamsetty  commented on HBASE-15924:


./bin/hbase-daemon.sh autostart and autorestart works differently from start in 
that we don't see a message printed like
echo starting $command, logging to $HBASE_LOGOUT
This message has been missing earlier as well. It makes sense to be consistent. 
Will incorporate the suggested changes.

There is an off-by-one error dealing with the autostart window retry limit. I 
tried this with ./bin/hbase-daemon.sh --autostart-window-retry-limit 3 
autostart regionserver then in order to stop autostart had to kill the 
regionserver 4 times
Will fix this as part of new patch. The condition used is -gt but instead 
should be -ge

> Enhance hbase services autorestart capability to hbase-daemon.sh 
> -----------------------------------------------------------------
>                 Key: HBASE-15924
>                 URL: https://issues.apache.org/jira/browse/HBASE-15924
>             Project: HBase
>          Issue Type: Improvement
>    Affects Versions: 0.98.19
>            Reporter: Loknath Priyatham Teja Singamsetty 
>            Assignee: Loknath Priyatham Teja Singamsetty 
>             Fix For: 0.98.24
>         Attachments: HBASE-15924.master.0001.patch, 
> HBASE-15924.master.0002.patch, HBASE-15924.master.0003.patch
> As part of HBASE-5939, the autorestart for hbase services has been added to 
> deal with scenarios where hbase services (master/regionserver/master-backup) 
> gets killed or goes down leading to unplanned outages. The changes were made 
> to hbase-daemon.sh to support autorestart option. 
> However, the autorestart implementation doesn't work in standalone mode and 
> other than that have few gaps with the implementation as per release notes of 
> HBASE-5939. Here is an attempt to re-design and fix the functionality 
> considering all possible usecases with hbase service operations.
> Release Notes of HBASE-5939:
> ------------------------------------------
> When launched with autorestart, HBase processes will automatically restart if 
> they are not properly terminated, either by a "stop" command or by a cluster 
> stop. To ensure that it does not overload the system when the server itself 
> is corrupted and the process cannot be restarted, the server sleeps for 5 
> minutes before restarting if it was already started 5 minutes ago previously. 
> To use it, launch the process with "bin/start-hbase autorestart". This option 
> is not fully compatible with the existing "restart" command: if you ask for a 
> restart on a server launched with autorestart, the server will restart but 
> the next server instance won't be automatically restarted.

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