Cluster Server 7.4 管理者ガイド - Linux

ユニットサービスがアクティブであり、対応するプロセスが systemd の外部で停止した場合、このサービスは systemctl start を使用して再開できない

ユニットサービスがアクティブ（稼動中）またはアクティブ（終了）状態にある間に、対応するプロセスが systemd のコンテキスト外部で停止することがあります。この場合、systemctl start コマンドを使用してこのサービスを再開できません。

次の例では、HA プロセス（had）が実行されておらず、ユニットサービスはアクティブ（稼動中）状態として表れます。

( root@localhost-vm1 ):[ ~ ]#systemctl status vcs
vcs.service - VERITAS Cluster Server (VCS)
Loaded: loaded (/opt/VRTSvcs/bin/vcs; enabled)
Active: active (running) since Sat 2017-04-22 00:10:24 IST;
 2 days ago
Process: 6671 ExecStart=/opt/VRTSvcs/bin/vcs start 2>&1
 (code=exited, status=0/SUCCESS)
CGroup: /system.slice/vcs.service
|-7724 /usr/lib/fs/vxfs/vxfsckd -p /var/adm/cfs/vxfsckd-pid
'-8046 /usr/sbin/vxnotify -g crsdg2324 -icfspdvACLMSk
Apr 22 00:16:30 localhost-vm1 Had[6753]: VCS ERROR V-16-2-13066 
(localhost-vm1) Agent is calling clean for resou...leted.
Apr 22 00:16:34 localhost-vm1 Had[6753]: VCS ERROR V-16-2-13066 
(localhost-vm0) Agent is calling clean for resou...leted.
Apr 22 00:17:31 localhost-vm1 AgentFramework[6835]: VCS ERROR
 V-16-2-13006 Thread(140152660154112) Resource(cssd): ...time.
Apr 22 00:17:31 localhost-vm1 Had[6753]: VCS ERROR
 V-16-2-13006 (localhost-vm1) Resource(cssd): clean procedure
 ... time.
Apr 22 00:17:35 localhost-vm1 Had[6753]: VCS ERROR
 V-16-2-13006 (localhost-vm0) Resource(cssd): clean procedure
 ... time.
Apr 22 00:22:37 localhost-vm1 AgentFramework[6835]: VCS ERROR
 V-16-2-13078 Thread(140152660154112) Resource(cssd) -...mpts.
Apr 22 00:22:37 localhost-vm1 AgentFramework[6835]: VCS ERROR
 V-16-2-13071 Thread(140152660154112) Resource(cssd): ...t(0).
Apr 22 00:22:37 localhost-vm1 Had[6753]: VCS ERROR V-16-1-54031
 Resource cssd (Owner: Unspecified, Group: cvm) is ...t-vm24
Apr 22 00:22:44 localhost-vm1 Had[6753]: VCS ERROR V-16-1-54031
 Resource cssd (Owner: Unspecified, Group: cvm) is ...t-vm23
Apr 24 21:51:11 localhost-vm1 systemd[1]: Started VERITAS
 Cluster Server (VCS).
Hint: Some lines were ellipsized, use -l to show in full.

( root@localhost-vm1 ):[ ~ ]# ps -ef | grep had
root 13735 10930 0 21:52 pts/2 00:00:00 grep --color=auto had

( root@localhost-vm1 ):[ ~ ]#/opt/VRTSvcs/bin/vcs status
had is stopped

この場合、systemd は systemctl start vcs コマンドを処理できません。

対処方法

この問題を回避するには、次のコマンドを順次実行します。

( root@localhost-vm1 )[ ~ ] # systemctl stop vcs
...

( root@localhost-vm1 )[ ~ ] # systemctl start vcs
...

または、再開コマンドを次のように実行します。

( root@localhost-vm1 )[ ~ ] #systemctl restart vcs

ユニットサービスが動作していることを確認します。

( root@localhost-vm1 ):[ ~ ]# systemctl status vcs
vcs.service - VERITAS Cluster Server (VCS)
Loaded: loaded (/opt/VRTSvcs/bin/vcs; enabled)
Active: active (running) since Mon 2017-04-24 21:57:49 IST;
 3s ago
Process: 15339 ExecStop=/opt/VRTSvcs/bin/vcs stop 2>&1
 (code=exited, status=0/SUCCESS)
Process: 15356 ExecStart=/opt/VRTSvcs/bin/vcs start 2>&1
 (code=exited, status=0/SUCCESS)
CGroup: /system.slice/vcs.service
|- 7724 /usr/lib/fs/vxfs/vxfsckd -p /var/adm/cfs/vxfsckd-pid
|- 8046 /usr/sbin/vxnotify -g crsdg2324 -icfspdvACLMSk
|-15394 /opt/VRTSvcs/bin/had
'-15400 /opt/VRTSvcs/bin/hashadow
Apr 24 21:57:49 localhost-vm1 systemd[1]: Starting VERITAS
 Cluster Server (VCS)...
Apr 24 21:57:49 localhost-vm1 vcs[15356]: Starting VCS: [ OK ]
Apr 24 21:57:49 localhost-vm1 systemd[1]: Started VERITAS
 Cluster Server (VCS).
Apr 24 21:57:49 localhost-vm1 Had[15394]: VCS NOTICE
 V-16-1-10619 'HAD' starting on: localhost-vm1
Apr 24 21:57:49 localhost-vm1 Had[15394]: VCS NOTICE
 V-16-1-10620 Waiting for local cluster configuration status
Apr 24 21:57:49 localhost-vm1 Had[15394]: VCS NOTICE
 V-16-1-10625 Local cluster configuration valid
Apr 24 21:57:49 localhost-vm1 Had[15394]: VCS NOTICE
 V-16-1-11034 Registering for cluster membership
Apr 24 21:57:49 localhost-vm1 Had[15394]: VCS NOTICE
 V-16-1-11035 Waiting for cluster membership
Apr 24 21:57:54 localhost-vm1 Had[15394]: VCS INFO
 V-16-1-10077 Received new cluster membership
Apr 24 21:57:54 localhost-vm1 Had[15394]: VCS NOTICE
 V-16-1-10086 System localhost-vm1 (Node '1') is in Regular
 Membership - Membership: 0x2
Apr 24 21:57:54 localhost-vm1 Had[15394]: VCS NOTICE
 V-16-1-10073 Building from local configuration
Apr 24 21:57:55 localhost-vm1 Had[15394]: VCS NOTICE
 V-16-1-10066 Entering RUNNING state
Apr 24 21:57:55 localhost-vm1 Had[15394]: VCS NOTICE
 V-16-1-50311 VCS Engine: running with security OFF
Apr 24 22:01:22 localhost-vm1 Had[15394]: VCS INFO
 V-16-1-10077 Received new cluster membership
Apr 24 22:01:22 localhost-vm1 Had[15394]: VCS NOTICE
 V-16-1-10086 System localhost-vm0 (Node '0') is in Regular
 Membership - Membership: 0x3

対応するサービスが開始されることを確認します。

( root@localhost-vm1 ):[ ~ ]# /opt/VRTSvcs/bin
/vcs status
had (pid 15394) is running...

( root@localhost-vm1 ):[ ~ ]# ps -ef | grep had
root 15394 1 0 21:57 ? 00:00:00 /opt/VRTSvcs/bin/had
root 15400 1 0 21:57 ? 00:00:00 /opt/VRTSvcs/bin/hashadow