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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:
--------------------------------------------------------
Description:
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.
was:
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
considered 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.
> 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
> Fix For: 0.98.19
>
>
> 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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