pacemaker中pcs命令的介绍

admin

pcs cluster destroy --all       删除集群
9 |: Y; t8 j7 Z6 Y' tWarning: Unable to load CIB to get guest and remote nodes from it, those nodes will not be deconfigured.
) F+ \, m* E; G4 f8 hcontroller3: Stopping Cluster (pacemaker)...
  `  R  S, W$ q1 a; Q% Hcontroller1: Stopping Cluster (pacemaker)...
controller2: Stopping Cluster (pacemaker)...
- {  }3 d6 l* y, `controller2: Successfully destroyed cluster
: g: B/ W, w) O) e5 B  qcontroller3: Successfully destroyed cluster
8 s; ]$ F5 u% Mcontroller1: Successfully destroyed cluster
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% p/ T2 {  ?  m" ]1 w+ y4 i$ p5 dpcs cluster stop --all   停止所有集群
% p! [# N) H% E; p4 B) |
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1 f1 t1 K9 l( y% T% S& O: R# pcs cluster enable --all
3 O5 v! @/ Q% [controller1: Cluster Enabled
' h& u5 y, F; H' |) Y: ]5 Econtroller2: Cluster Enabled
9 H; M, e5 z) `/ l; T' c3 g4 Mcontroller3: Cluster Enabled

# pcs cluster disable --all
controller1: Cluster Disabled
8 V+ R8 ]0 E: G* z& Lcontroller2: Cluster Disabled
8 B0 w/ B4 z5 t( H5 Z! Scontroller3: Cluster Disabled

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admin

# pcs resource create httpd_fs Filesystem device="/dev/mapper/vg_apache-lv_apache" directory="/var/www" fstype="ext4" --group apache
7 `# H# o8 l4 e3 |Create an IP address resource, this will act a virtual IP for the Apache. Clients will use this ip for accessing the web content instead of individual nodes ip.
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# pcs resource create httpd_vip IPaddr2 ip=192.168.12.100 cidr_netmask=24 --group apache
3 d3 q1 M% C" U& e% \Create an Apache resource which will monitor the status of Apache server and move the resource to another node in case of any failure.
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( B) {$ ^6 X7 V1 `7 a" B1 g# pcs resource create httpd_ser apache configfile="/etc/httpd/conf/httpd.conf" statusurl="http://127.0.0.1/server-status" --group apache
Since we are not using fencing, disable it (STONITH). You must disable to start the cluster resources, but disabling STONITH in the production environment is not recommended.

/ x" w5 S4 E/ G# F# pcs property set stonith-enabled=false
Check the status of the cluster.

[root@node1 ~]# pcs status
  g& u, T' N* x* M( R) T( i1 FCluster name: itzgeek_cluster
Last updated: Fri Mar 25 13:47:55 2016          Last change: Fri Mar 25 13:31:58 2016 by root via cibadmin on node1.itzgeek.local
6 e# m0 [4 R1 s# V) ^0 ?" @Stack: corosync
+ H; D; T5 F0 d* E$ I& zCurrent DC: node2.itzgeek.local (version 1.1.13-10.el7_2.2-44eb2dd) - partition with quorum
2 nodes and 3 resources configured
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: P( V( N7 i7 c9 @; [8 WOnline: [ node1.itzgeek.local node2.itzgeek.local ]
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% `! l7 Q6 F( I& v6 X: N2 Z, ]% B+ JFull list of resources:

% W, f& D: ]2 L+ R3 ^$ w) H Resource Group: apache
& w; a& q2 {) P9 e3 }     httpd_vip  (ocf::heartbeat:IPaddr2):       Started node1.itzgeek.local
, f# J2 c; V9 d4 j. b     httpd_ser  (ocf::heartbeat:apache):        Started node1.itzgeek.local
5 U5 L% y7 Y& F4 M  n) e; \     httpd_fs   (ocf::heartbeat:Filesystem):    Started node1.itzgeek.local
4 f: r8 x# h: K6 K# T/ b3 k/ h, G9 B
PCSD Status:
* Q; J8 m. t1 R. g- w4 Z  node1.itzgeek.local: Online
  node2.itzgeek.local: Online

Daemon Status:
; {% G1 p+ d3 q+ t( {4 {  corosync: active/enabled
  pacemaker: active/enabled
  pcsd: active/enabled

admin

[root@node1 ~]# pcs cluster stop node1.itzgeek.local
' W9 m( d, o4 Y  J: I( t6 \$ w) K0 ]#  pcs resource move apache node1.itzgeek.local
#  pcs resource stop apache node2.itzgeek.local
# i2 t3 C5 i* j3 w9 B. l#  pcs resource disable apache node2.itzgeek.local
8 w& S5 i* n6 Q4 X, Z/ i8 t( q#  pcs resource enable apache node2.itzgeek.local
#  pcs resource restart apache

admin

pcs status corosync

  N4 |9 z1 T+ G' mMembership information
% T2 F  w- v  A" J3 {$ }----------------------
) u7 [, b) K; B8 q% {5 C    Nodeid      Votes Name
6 m: P6 F$ Y& h: e  U" J         1          1 controller1 (local)
+ Q& s6 V. W7 X         2          1 controller2
         3          1 controller3
# s( J8 G) q3 x' B0 s0 K% F; M
pcs cluster cib
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6 M  Y5 k# ^% lpcs property set stonith-enabled=true
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, }  s( H1 Z2 j+ R8 z% y. Hpcs property
2 i" {0 n  T+ H* F4 R8 B  sCluster Properties:
8 l/ t# S9 r# { cluster-infrastructure: corosync
cluster-name: my_wsrep_cluster
dc-version: 1.1.16-12.el7_4.5-94ff4df
; e1 ~; U$ k: ~5 b/ b& @. G; ^/ I have-watchdog: false
; A  A6 K- y' B2 L  l" v5 W no-quorum-policy: ignore
7 Y9 Z% P" ~( Q6 g& \  S  S stonith-enabled: true

admin

    pcs resource show
      Show all resources.

    pcs resource show VirtualIP
7 {* M8 y% u1 F+ Z( _( [  b- L+ R      Show options specific to the 'VirtualIP' resource.
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0 z% ?$ J+ S& k; V+ o    pcs resource create VirtualIP ocf:heartbeat:IPaddr2 ip=192.168.0.99 \
2 C( X! e' @' @               cidr_netmask=32 nic=eth2 op monitor interval=30s
      Create a new resource called 'VirtualIP' with options.

( H, L' z0 O( n7 {$ N( w8 V! x    pcs resource create VirtualIP IPaddr2 ip=192.168.0.99 \
$ t( L6 F$ i0 A, x8 c               cidr_netmask=32 nic=eth2 op monitor interval=30s
% s; @# Z9 C: M9 V$ {: O3 D% L' F      Create a new resource called 'VirtualIP' with options.

    pcs resource update VirtualIP ip=192.168.0.98 nic=
      Change the ip address of VirtualIP and remove the nic option.
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    pcs resource delete VirtualIP
      Delete the VirtualIP resource.

admin

集群故障时候服务迁移
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# pcs resource defaults migration-threshold=1