[jira] [Assigned] (HBASE-18274) hbase autorestart will overwrite the gc log

["Ted Yu (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-18274?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ted Yu reassigned HBASE-18274:
------------------------------

    Assignee: Fangyuan Deng

> hbase autorestart will overwrite the gc log
> -------------------------------------------
>
>                 Key: HBASE-18274
>                 URL: https://issues.apache.org/jira/browse/HBASE-18274
>             Project: HBase
>          Issue Type: Bug
>          Components: hbase
>    Affects Versions: 1.2.6, 1.1.11, 2.0.0-alpha-1
>            Reporter: Fangyuan Deng
>            Assignee: Fangyuan Deng
>             Fix For: 3.0.0, 2.0.0-alpha-2
>
>         Attachments: HBASE-18274.0.patch
>
>
> While using hbase autorestart ,  the gc log will be overwirited after the process(hmaster or hregionserver) retarting.
> This is because the autorestart loop is in internal_autostart function ( in hbase-daemon.sh), but we only rotate the gc log in autorestart function.
> (internal_autostart)
>     ONE_HOUR_IN_SECS=3600
>     autostartWindowStartDate=`date +%s`
>     autostartCount=0
>     touch "$HBASE_AUTOSTART_FILE"
>     # keep starting the command until asked to stop. Reloop on software crash
>     while true
>     do
>         code # restart the hbase process util the cluster is shut down
>     fi
> (autorestart)
>     echo running $command, logging to $HBASE_LOGOUT
>     # stop the command
>     $thiscmd --config "${HBASE_CONF_DIR}" stop $command $args &
>     wait_until_done $!
>     # wait a user-specified sleep period
>     sp=${HBASE_RESTART_SLEEP:-3}
>     if [ $sp -gt 0 ]; then
>       sleep $sp
>     fi
>     check_before_start
>     hbase_rotate_log $HBASE_LOGOUT
>     hbase_rotate_log $HBASE_LOGGC
>     nohup $thiscmd --config "${HBASE_CONF_DIR}" --autostart-window-size ${AUTOSTART_WINDOW_SIZE} --autostart-window-retry-limit ${AUTOSTART_WINDOW_RETRY_LIMIT} \
>         internal_autostart $command $args < /dev/null > ${HBASE_LOGOUT} 2>&1  &



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