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List:       linux-ha-jp
Subject:    Re: [Linux-ha-jp]  =?utf-8?b?RFJCROOBrk1hc3Rlci9TbGF2ZeOBjOWIh+OCig==?=
From:       æ <matsuura_kenta_y5 () lab ! ntt ! co ! jp>
Date:       2018-11-14 7:44:36
Message-ID: 01a401d47bed$e48a1ff0$ad9e5fd0$ () lab ! ntt ! co ! jp
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鈴木ã•ã‚“

æ¾æµ¦ã¨ç”³ã—ã¾ã™ã€‚
ãŠä¸–話ã«ãªã£ã¦ãŠã‚Šã¾ã™ã€‚

Pacemakerã®ãƒªã‚½ãƒ¼ã‚¹ã¾ã‚ã‚Šã®è¨­å®šã‚’見ã¦ã„ãªã„ã®ã§æŽ¨æ¸¬ã¨ãªã‚Šã¾ã™ãŒã€
HTTPDリソースやFilesystemリソースãŒå«ã¾ã‚Œã¦ã„るリソースグループ
(SeiGroup)ã¨ã€DRBDリソースをç´ã¥ã‘るリソース制約ã®è¨­å®šã«å•é¡ŒãŒã‚ã‚‹
ã‚‚ã®ã¨æ€ã„ã¾ã™ã€‚

以下ã¯ã‚µãƒ¼ãƒ‰ã‚¦ã‚§ã‚¢ç¤¾ã®ãƒ–ログページã¨ãªã‚Šã¾ã™ãŒã€å…·ä½“çš„ãªè¨­å®šæ–¹æ³•ã‚’
紹介ã—ã¦ã„ã‚‹ã®ã§å‚考ã«ãªã‚‹ã‹ã¨æ€ã„ã¾ã™ã€‚
https://blog.3ware.co.jp/drbd-users-guide-8.4/ch-pacemaker.html

上記ã®"colocation"制約ã€"order"制約ã®è¨­å®šã¾ã‚ã‚Šã«ä¸å‚™ãŒãªã„ã‹
確èªã—ã¦ã¿ã¦ãã ã•ã„。

ãŸã ã—ã€ã‚‚ã—DRBDリソースã®MSDRBD0ã¨MSDRBD1ã®ä¸¡æ–¹ãŒMasterã¨
ãªã£ã¦ã„ãªã„ã¨ãƒªã‚½ãƒ¼ã‚¹ã‚°ãƒ«ãƒ¼ãƒ—ã‚’èµ·å‹•ã§ããªã„様ã«ã—ãŸã„å ´åˆã¯è¨­å®š
ãŒã‹ãªã‚Šé›£ã—ããªã‚‹ã‹ã¨æ€ã„ã¾ã™ã€‚
(ç§ã‚‚å‰ã«ã‚„ã‚ã†ã¨ã—ã¾ã—ãŸãŒã€ä¸Šæ‰‹ãå‹•ã‹ã›ã¾ã›ã‚“ã§ã—ãŸã€‚。。)

ãã®å ´åˆã¯ã€ä»¥ä¸‹ã®ãƒšãƒ¼ã‚¸ã«ã‚ã‚‹volume辺りã®è¨­å®šã‚’使ã£ã¦1ã¤ã®
DRBDリソースã«ã¾ã¨ã‚られãªã„ã‹æ¤œè¨Žã—ã¦ã¿ã‚‹ã¨è‰¯ã„ã¨æ€ã„ã¾ã™ã€‚
https://blog.3ware.co.jp/drbd-users-guide-8.4/ch-configure.html

以上ã§ã™ã€‚

-----Original Message-----
From: Linux-ha-japan [mailto:linux-ha-japan-bounces@lists.osdn.me] On Behalf Of 鈴木 å“朗
Sent: Wednesday, November 14, 2018 2:49 PM
To: linux-ha-japan@lists.osdn.me
Subject: [Linux-ha-jp] DRBDã®Master/SlaveãŒåˆ‡ã‚Šæ›¿ã‚らãšã«ãƒ•ã‚§ãƒ¼ãƒ«ã‚ªãƒ¼ãƒãƒ¼å¤±æ•—

ãŠä¸–話ã«ãªã£ã¦ãŠã‚Šã¾ã™ã€‚
鈴木ã¨ç”³ã—ã¾ã™ã€‚

フェイルオーãƒãƒ¼ã®ãƒ†ã‚¹ãƒˆã§ã€ã€Œpkill httpdã€ã§HTTPDリソースをåœæ­¢ã•ã›
フェイルオーãƒãƒ¼ã®ç¢ºèªã‚’ã—よã†ã¨ã—ãŸã¨ã“ã‚ã€
DRBDã®Master/Slave ãŒåˆ‡ã‚Šæ›¿ã‚らãªã„ãŸã‚DRBDã®ãƒ‘ーティションを
マウント出æ¥ãšã«ãƒ•ã‚§ã‚¤ãƒ«ã‚ªãƒ¼ãƒãƒ¼ã«å¤±æ•—ã—ã¾ã™ã€‚

リソースグループã§ã‚¨ãƒ©ãƒ¼ãŒç™ºç”Ÿã—ãŸå ´åˆã€DRBDã®Master/Slaveを切り替ãˆã‚‹ã«ã¯
ã©ã®ã‚ˆã†ã«ã™ã‚Œã°ã„ã„ã®ã§ã—ょã†ã‹ã€‚


環境
OS：CentOS7.5
DRBD:8.4
pacemaker：1.1.18
corosync：2.4.3


# pcs status
Cluster name: SeiCluster
Stack: corosync
Current DC: sei02hb (version 1.1.18-11.el7_5.3-2b07d5c5a9) - partition with quorum
Last updated: Wed Nov 14 14:42:20 2018
Last change: Wed Nov 14 14:38:20 2018 by hacluster via crmd on sei01hb

2 nodes configured
13 resources configured

Online: [ sei01hb sei02hb ]

Full list of resources:

  Master/Slave Set: MSDRBD0 [DRBD0]
      Masters: [ sei01hb ]
      Slaves: [ sei02hb ]
  Master/Slave Set: MSDRBD1 [DRBD1]
      Masters: [ sei01hb ]
      Slaves: [ sei02hb ]
  Resource Group: SeiGroup
      VIPcheckOP (ocf::myres:VIPcheck):  Started sei01hb
      FSDRBD0    (ocf::heartbeat:Filesystem):    Started sei01hb
      FSDRBD1    (ocf::heartbeat:Filesystem):    Started sei01hb
      MariaDB    (ocf::heartbeat:mysql): Started sei01hb
      TOMCAT     (ocf::heartbeat:tomcat):        Started sei01hb
      HTTPD      (ocf::heartbeat:apache):        Started sei01hb
      VIPseiOP   (ocf::heartbeat:IPaddr2):       Started sei01hb
  Clone Set: ping-clone [ping]
      Started: [ sei01hb sei02hb ]

Daemon Status:
   corosync: active/enabled
   pacemaker: active/enabled
   pcsd: active/enabled

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