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пакет_pacemaker
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пакет_pacemaker [2020/06/19 17:43] val [Удаление ресурсов] |
пакет_pacemaker [2022/03/19 18:29] val [Запуск после монтирования файловых систем] |
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| ====== Пакет Pacemaker ====== | ====== Пакет Pacemaker ====== | ||
| - | * [[http://clusterlabs.org/doc/en-US/Pacemaker/1.1-plugin/html/Clusters_from_Scratch/|Pacemaker 1.1 Clusters from Scratch]] | ||
| * [[https://habrahabr.ru/post/107837/|Linux HA на основе Pacemaker]] | * [[https://habrahabr.ru/post/107837/|Linux HA на основе Pacemaker]] | ||
| * [[http://wiki.525.su/doku.php?id=pacemaker_theory|Pacemaker, теория]] | * [[http://wiki.525.su/doku.php?id=pacemaker_theory|Pacemaker, теория]] | ||
| Line 27: | Line 26: | ||
| node1# crm configure | node1# crm configure | ||
| </code><code> | </code><code> | ||
| + | property dc-deadtime=120 # Для уменьшения вероятности split-brain | ||
| + | |||
| property no-quorum-policy=ignore | property no-quorum-policy=ignore | ||
| + | primitive st-null stonith:null params hostlist="node1 node2" | ||
| + | clone fencing st-null | ||
| - | # pacemaker 2.X, need cross ssh key access | + | op timeout=240s # Для долго стартующих ресурсов (перезапуск VM в KVM на резервном узле после падения основного) |
| - | primitive st-ssh stonith:external/ssh params hostlist="node1.corpX.un node2.corpX.un" | + | |
| - | clone fencing st-ssh | + | |
| show | show | ||
| commit | commit | ||
| - | exit | + | quit |
| </code><code> | </code><code> | ||
| nodeN# find /var/lib/pacemaker/cib/ | nodeN# find /var/lib/pacemaker/cib/ | ||
| Line 58: | Line 59: | ||
| node1# less /usr/lib/ocf/resource.d/heartbeat/IPaddr2 | node1# less /usr/lib/ocf/resource.d/heartbeat/IPaddr2 | ||
| + | |||
| + | node1# OCF_ROOT=/usr/lib/ocf OCF_RESKEY_ip=192.168.X.10 OCF_RESKEY_nic=eth0 OCF_RESKEY_cidr_netmask=24 /usr/lib/ocf/resource.d/heartbeat/IPaddr2 start | ||
| + | |||
| + | node1# OCF_ROOT=/usr/lib/ocf OCF_RESKEY_ip=192.168.X.10 OCF_RESKEY_nic=eth0 OCF_RESKEY_cidr_netmask=24 /usr/lib/ocf/resource.d/heartbeat/IPaddr2 stop | ||
| node1# crm configure | node1# crm configure | ||
| Line 86: | Line 91: | ||
| - | node1# crm resource move gr_ftp_ip node2.corpX.un | + | node1# crm resource move gr_ftp_ip node2 |
| или | или | ||
| - | node1# crm resource move pr_ftp node2.corpX.un | + | node1# crm resource move pr_ftp node2 |
| Line 111: | Line 116: | ||
| node1# crm configure delete gr_ftp_ip pr_ftp pr_ip | node1# crm configure delete gr_ftp_ip pr_ftp pr_ip | ||
| - | |||
| - | node1# crm resource stop st-ssh | ||
| - | |||
| - | node1# crm configure delete st-ssh | ||
| </code> | </code> | ||
| Line 120: | Line 121: | ||
| <code> | <code> | ||
| # crm resource cleanup pr_fs_r0 | # crm resource cleanup pr_fs_r0 | ||
| + | |||
| + | # stonith_admin -c -H node2.corpX.un | ||
| pacemaker# crm_resource -C | pacemaker# crm_resource -C | ||
| Line 132: | Line 135: | ||
| nodeN:~# init 6 | nodeN:~# init 6 | ||
| </code> | </code> | ||
| + | |||
| + | ===== Запуск после монтирования файловых систем ===== | ||
| + | |||
| + | * [[https://unix.stackexchange.com/questions/246935/set-systemd-service-to-execute-after-fstab-mount|Set systemd service to execute after fstab mount]] | ||
| + | * Проблема воспроизводилась при сбойных сценариях с ресурсами, использующими [[Сервис OCFS2]] | ||
| + | |||
| + | <code> | ||
| + | # systemctl list-units --type=mount | ||
| + | </code><code> | ||
| + | ... | ||
| + | disk3.mount loaded active mounted /disk3 | ||
| + | ... | ||
| + | </code><code> | ||
| + | # systemctl edit pacemaker.service | ||
| + | </code><code> | ||
| + | [Unit] | ||
| + | After=disk3.mount | ||
| + | #After=disk2.mount disk3.mount | ||
| + | </code> | ||
| + | |||
| ====== Дополнительные материалы ====== | ====== Дополнительные материалы ====== | ||
| + | |||
| + | ==== ssh fencing ==== | ||
| + | <code> | ||
| + | primitive st-ssh stonith:external/ssh params hostlist="node1 node2" | ||
| + | clone fencing st-ssh | ||
| + | </code> | ||
| ==== Debian 9 ==== | ==== Debian 9 ==== | ||
пакет_pacemaker.txt · Last modified: 2022/10/25 14:07 by val
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