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--- пакет_pacemaker [2020/01/23 12:19]
val [Управление ресурсами]
+++ пакет_pacemaker [2022/10/25 14:07]
val [Создание ресурсов]
@@ Line 1: / Line 1: @@
 ====== 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]]
   * [[http://wiki.525.su/doku.php?id=pacemaker_theory|Pacemaker, теория]]
@@ Line 27: / Line 26: @@
 node1# crm configure
 </code><code>
+property dc-deadtime=120    # Для уменьшения вероятности split-brain (НЕ помогает)
 property no-quorum-policy=ignore
+primitive st-null stonith:null params hostlist="node1 node2"
+clone fencing st-null
-# pacemaker 1.X (Debian 9)
+op timeout=240s             # Для долго стартующих ресурсов (перезапуск VM в KVM на резервном узле после падения основного)
-property stonith-enabled=false
-property default-resource-stickiness=100
-# pacemaker 2.X, need cross ssh key access (Debian 10)
-primitive st-ssh stonith:external/ssh params hostlist="node1.corpX.un node2.corpX.un"
-clone fencing st-ssh
 show
 commit
-exit
+quit
 </code><code>
 nodeN# find /var/lib/pacemaker/cib/
+nodeN# cat /var/lib/pacemaker/cib/cib.xml
 </code>
@@ Line 50: / Line 49: @@
   * [[https://linux.die.net/man/8/crm_resource|crm_resource(8) - Linux man page]]
+==== Создание ресурсов ====
 <code>
 node1# crm ra classes
@@ Line 60: / Line 61: @@
 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
@@ Line 65: / Line 70: @@
 crm(live)configure# primitive pr_ip ocf:heartbeat:IPaddr2 params ip=192.168.X.10 cidr_netmask=32 nic=eth0
 crm(live)configure# group gr_ftp_ip pr_ftp pr_ip
+node1# export EDITOR=nano
 crm(live)configure# edit gr_ftp_ip
@@ Line 74: / Line 81: @@
 node1# crm status
+</code>
+==== Перемещение ресурсов  ====
+<code>
 node1# crm resource
 crm(live)resource# locate gr_ftp_ip
@@ Line 85: / Line 95: @@
-node1# crm resource move gr_ftp_ip node2.corpX.un
+node1# crm resource move gr_ftp_ip node2
 или
-node1# crm resource move pr_ftp node2.corpX.un
+node1# crm resource move pr_ftp node2
@@ Line 100: / Line 110: @@
 или
 node1# crm resource unmigrate pr_ftp
+</code>
+==== Удаление ресурсов  ====
-node1# crm resource stop gr_ftp_ip
+<code>
-node1# crm resource start gr_ftp_ip
+node1# crm configure show
+node1# crm resource stop gr_ftp_ip
 node1# crm configure delete gr_ftp_ip pr_ftp pr_ip
@@ Line 113: / Line 126: @@
 # crm resource cleanup pr_fs_r0
-# tail -f /var/log/pacemaker.log
+# stonith_admin -c -H node2.corpX.un
+pacemaker# crm_resource -C
+# tail -f /var/log/pacemaker/pacemaker.log
 </code>
@@ Line 123: / Line 140: @@
 </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 ======
+==== ssh fencing ====
+<code>
+primitive st-ssh stonith:external/ssh params hostlist="node1 node2"
+clone fencing st-ssh
+</code>
+==== Debian 9 ====
+<code>
+# pacemaker 1.X ()
+property stonith-enabled=false
+property default-resource-stickiness=100
+</code>

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