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heartbeat_plus_hast
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| - | ====== HEARTBEAT plus HAST ====== | ||
| - | |||
| - | - Состояние init возникает при запуске hastd на secondary узле, если он остановился и стартует раньше primary | ||
| - | - Ситуация Split-Brain возникает при запуске hastd на secondary узле, если он остановился позже primary и heartbeat успел его назначить primary, а запускаются оба узла синхронно и heartbeat считает что primary должен оставаться прежним. | ||
| - | |||
| - | <code> | ||
| - | gateN# /usr/local/etc/rc.d/heartbeat stop | ||
| - | |||
| - | gateN# cat /usr/local/etc/ha.d/resource.d/hast | ||
| - | </code><code> | ||
| - | #!/bin/sh | ||
| - | case $1 in | ||
| - | status) | ||
| - | hastctl status r0 | grep -q 'role: init' && hastctl role secondary r0 | ||
| - | ;; | ||
| - | start) | ||
| - | hastctl role primary r0 | ||
| - | sleep 5 | ||
| - | fsck -y -t ufs /dev/hast/r0 | ||
| - | mount /dev/hast/r0 /opt | ||
| - | ;; | ||
| - | stop) | ||
| - | mount | grep -q hast && umount /opt | ||
| - | hastctl role secondary r0 | ||
| - | ;; | ||
| - | esac | ||
| - | |||
| - | exit 0 | ||
| - | </code><code> | ||
| - | gateN# chmod +x /usr/local/etc/ha.d/resource.d/hast | ||
| - | |||
| - | gateN# cat /usr/local/etc/ha.d/haresources | ||
| - | </code><code> | ||
| - | gate2.corpX.un hast | ||
| - | </code><code> | ||
| - | gateN# /usr/local/etc/rc.d/heartbeat start | ||
| - | </code> | ||
heartbeat_plus_hast.1291285309.txt.gz · Last modified: 2013/05/22 13:50 (external edit)
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