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×°ÖÃPacemakerºÍCorosync

Ê×ÏÈ£¬ÔÚLinuxÇéÐÎÖÐ×°ÖÃPacemakerºÍCorosync¡£ÏêϸµÄ×°ÖÃÒªÁì¿ÉÄÜÒòLinux¿¯ÐаæµÄ²î±ð¶øÓÐËù²î±ð¡£ÔÚ´ó´ó¶¼Linux¿¯ÐаæÖУ¬¿ÉÒÔʹÓðü¹ÜÀíÆ÷À´×°ÖÃÕâЩ¹¤¾ß¡£ÀýÈ磬ÔÚCentOSÉÏ£¬¿ÉÒÔʹÓÃÒÔÏÂÏÂÁî¾ÙÐÐ×°Öãº

sudo yum install pacemaker corosync

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Pacemakerͨ¹ý×ÊÔ´ÊðÀíÀ´ÖÎÀíºÍ¿ØÖƲî±ðµÄЧÀͺÍÓ¦ÓóÌÐò¡£¹ØÓÚÊý¾Ý¿â¼¯Èº±¸·Ý£¬ÎÒÃÇÐèÒª½¨ÉèÒ»¸öÓÃÓÚ¿ØÖÆÊý¾Ý¿âµÄ×ÊÔ´ÊðÀí¡£Õâ¸öÊðÀí¿ÉÒÔÊÇShell¾ç±¾¡¢Python¾ç±¾»òÆäËû¿ÉÖ´ÐÐÎļþ¡£ÒÔÏÂÊÇÒ»¸öʹÓÃShell½ÅÔ­À´¿ØÖÆÊý¾Ý¿âµÄʾÀý£º

#!/bin/bash

case $1 in
  start)
    # Æô¶¯Êý¾Ý¿â
    /path/to/start_database.sh
    ;;
  stop)
    # ×èÖ¹Êý¾Ý¿â
    /path/to/stop_database.sh
    ;;
  status)
    # Éó²éÊý¾Ý¿â״̬
    /path/to/check_database_status.sh
    ;;
  *)
    echo "Usage: $0 {start|stop|status}"
    exit 1
    ;;
esac

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# /etc/corosync/corosync.conf

totem {
  version: 2
  secauth: off
  cluster_name: mycluster
}

nodelist {
  node {
    ring0_addr: 192.168.1.10
    nodeid: 1
  }
  node {
    ring0_addr: 192.168.1.11
    nodeid: 2
  }
}

quorum {
  provider: corosync_votequorum
}

logging {
  fileline: off
  to_stderr: yes
  to_logfile: yes
  to_syslog: yes
  logfile: /var/log/corosync/corosync.log
  debug: off
  timestamp: on
}

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sudo pcs resource create db_resource ocf:pacemaker:my_resource op start timeout=30s op stop timeout=30s op monitor interval=10s
sudo pcs resource group add db_resource_group db_resource

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ÔÚÉÏÃæµÄʾÀýÖУ¬ÄãÐèÒª½«my_resourceÌ滻ΪÄã֮ǰ½¨ÉèµÄ×ÊÔ´ÊðÀíµÄ·¾¶¡£

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sudo systemctl start corosync
sudo systemctl start pacemaker

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sudo crm_verify -L

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Warnings found during check: none
Corosync configuration appears to be valid.

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sudo pcs resource enable db_resource
sudo pcs resource disable db_resource

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sudo pcs status

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