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https://issues.apache.org/jira/browse/HBASE-15924?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Loknath Priyatham Teja Singamsetty updated HBASE-15924:
--------------------------------------------------------
Release Note:
Now one can start hbase services with enabled "autostart/autorestart" feature
in controlled fashion with the help of "--autostart-window-size" to define the
window period and the "--autostart-window-retry-limit" to define the number of
times the hbase services have to be restarted upon being killed/terminated
abnormally within the provided window perioid.
The following cases are supported with "autostart/autorestart":
a) --autostart-window-size=0 and --autostart-window-retry-limit=0, indicates
infinite window size and no retry limit
b) not providing the args, will default to a)
c) --autostart-window-size=0 and --autostart-window-retry-limit=<positive
value> indicates the autostart process to bail out if the retry limit exceeds
irrespective of window period
d) --autostart-window-size=<x> and --autostart-window-retry-limit=<y> indicates
the autostart process to bail out if the retry limit "y" is exceeded for the
last window period "x".
Status: Patch Available (was: In Progress)
> 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: 0.98.23
>
> Attachments: HBASE-15924.master.0001.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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