Oracle 11gR2 安装RAC错误之--时钟不同步
系统环境：
操作系统：RedHat EL5
Cluster： Oracle GI(Grid Infrastructure)
Oracle： Oracle 11.2.0.1.0
如图所示：RAC 系统架构
对于Oracle 11G构建RAC首先需要构建GI(Grid Infrastructure)的架构
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错误现象：
在node2执行root.sh脚本时报错：
[root@xun2 install]# /u01/11.2.0/grid/root.sh
Running Oracle 11g root.sh script...
The following environment variables are set as:
ORACLE_OWNER= grid
ORACLE_HOME= /u01/11.2.0/grid
Enter the full pathname of the local bin directory: [/usr/local/bin]:
The file "dbhome" already exists in /usr/local/bin. Overwrite it? (y/n)
[n]: y
Copying dbhome to /usr/local/bin ...
The file "oraenv" already exists in /usr/local/bin. Overwrite it? (y/n)
[n]: y
Copying oraenv to /usr/local/bin ...
The file "coraenv" already exists in /usr/local/bin. Overwrite it? (y/n)
[n]: y
Copying coraenv to /usr/local/bin ...
Entries will be added to the /etc/oratab file as needed by
Database Configuration Assistant when a database is created
Finished running generic part of root.sh script.
Now product-specific root actions will be performed.
2014-07-05 02:00:09: Parsing the host name
2014-07-05 02:00:09: Checking for super user privileges
2014-07-05 02:00:09: User has super user privileges
Using configuration parameter file: /u01/11.2.0/grid/crs/install/crsconfig_params
LOCAL ADD MODE
Creating OCR keys for user 'root', privgrp 'root'..
Operation successful.
Adding daemon to inittab
CRS-4123: Oracle High Availability Services has been started.
ohasd is starting
CRS-4402: The CSS daemon was started in exclusive mode but found an active CSS daemon on node xun1, number 1, and is terminating
An active cluster was found during exclusive startup, restarting to join the cluster
CRS-2672: Attempting to start 'ora.mdnsd' on 'xun2'
CRS-2676: Start of 'ora.mdnsd' on 'xun2' succeeded
CRS-2672: Attempting to start 'ora.gipcd' on 'xun2'
CRS-2676: Start of 'ora.gipcd' on 'xun2' succeeded
CRS-2672: Attempting to start 'ora.gpnpd' on 'xun2'
CRS-2676: Start of 'ora.gpnpd' on 'xun2' succeeded
CRS-2672: Attempting to start 'ora.cssdmonitor' on 'xun2'
CRS-2676: Start of 'ora.cssdmonitor' on 'xun2' succeeded
CRS-2672: Attempting to start 'ora.cssd' on 'xun2'
CRS-2672: Attempting to start 'ora.diskmon' on 'xun2'
CRS-2676: Start of 'ora.diskmon' on 'xun2' succeeded
CRS-2676: Start of 'ora.cssd' on 'xun2' succeeded
CRS-2672: Attempting to start 'ora.ctssd' on 'xun2'
CRS-2674: Start of 'ora.ctssd' on 'xun2' failed
CRS-4000: Command Start failed, or completed with errors.
Command return code of 1 (256) from command: /u01/11.2.0/grid/bin/crsctl start resource ora.ctssd -init -env USR_ORA_ENV=CTSS_REBOOT=TRUE
Start of resource "ora.ctssd -init -env USR_ORA_ENV=CTSS_REBOOT=TRUE" failed
Failed to start CTSS
Failed to start Oracle Clusterware stack
查看日志：
[root@xun2 ctssd]# more octssd.log
Oracle Database 11g Clusterware Release 11.2.0.1.0 - Production Copyright 1996, 2009 Oracle. A
ll rights reserved.
2014-07-05 01:36:39.677: [ CTSS][3046594240]Oracle Database CTSS Release 11.2.0.1.0 Product
ion Copyright 2006, 2007 Oracle. All rights reserved.
2014-07-05 01:36:39.677: [ CTSS][3046594240]ctss_scls_init: SCLs Context is 0x88205f0
2014-07-05 01:36:39.685: [ CTSS][3046594240]ctss_css_init: CSS Context is 0x8820698
2014-07-05 01:36:39.686: [ CTSS][3046594240]ctss_clsc_init: CLSC Context is 0x8820fd8
2014-07-05 01:36:39.686: [ CTSS][3046594240]ctss_init: CTSS production mode
2014-07-05 01:36:39.686: [ CTSS][3046594240]ctss_init: CTSS_REBOOT=TRUE. Overriding 'reboot
' argument as if 'octssd reboot' is executed. Turn on start up step sync.
2014-07-05 01:36:39.695: [ CTSS][3046594240]sclsctss_gvss2: NTP default pid file not found
2014-07-05 01:36:39.695: [ CTSS][3046594240]sclsctss_gvss8: Return [0] and NTP status [1].
2014-07-05 01:36:39.695: [ CTSS][3046594240]ctss_check_vendor_sw: Vendor time sync software
is not detected. status [1].
2014-07-05 01:36:39.695: [ CTSS][3046594240]ctsscomm_init: The Socket name is [(ADDRESS=(PR
OTOCOL=tcp)(HOST=xun2))]
2014-07-05 01:36:39.772: [ CTSS][3046594240]ctsscomm_init: Successful completion.
2014-07-05 01:36:39.772: [ CTSS][3046594240]ctsscomm_init: PORT = 31165
2014-07-05 01:36:39.772: [ CTSS][3020295056]CTSS connection handler started
[ CTSS][3009805200]clsctsselect_mm: Master Monitor thread started
[ CTSS][2999315344]ctsselect_msm: Slave Monitor thread started
2014-07-05 01:36:39.772: [ CTSS][2988825488]ctsselect_mmg: The local nodenum is 2
2014-07-05 01:36:39.776: [ CTSS][2988825488]ctsselect_mmg2_5: Pub data for member [1]. {Ver
sion [1] Node [1] Priv node name [xun1] Port num [53367] SW version [186646784] Mode [0x40]}
2014-07-05 01:36:39.779: [ CTSS][2988825488]ctsselect_mmg4: Successfully registered with [C
TSSMASTER]
2014-07-05 01:36:39.779: [ CTSS][2988825488]ctsselect_mmg6: Receive reconfig event. Inc num
[2] New master [2] members count[1]
2014-07-05 01:36:39.780: [ CTSS][2988825488]ctsselect_mmg8: Host [xun1] Node num [1] is the
master
2014-07-05 01:36:39.781: [ CTSS][2988825488]ctsselect_sm2: Node [1] is the CTSS master
2014-07-05 01:36:39.782: [ CTSS][2988825488]ctssslave_meh1: Master private node name [xun1]
2014-07-05 01:36:39.782: [ CTSS][2988825488]ctssslave_msh: Connect String is (ADDRESS=(PROT
OCOL=tcp)(HOST=xun1)(PORT=53367))
[ clsdmt][2978335632]Listening to (ADDRESS=(PROTOCOL=ipc)(KEY=xun2DBG_CTSSD))
2014-07-05 01:36:39.783: [ clsdmt][2978335632]PID for the Process [24020], connkey 11
2014-07-05 01:36:39.783: [ CTSS][2988825488]ctssslave_msh: Forming connection with CTSS mas
ter node [1]
2014-07-05 01:36:39.784: [ clsdmt][2978335632]Creating PID [24020] file for home /u01/11.2.0/
grid host xun2 bin ctss to /u01/11.2.0/grid/ctss/init/
2014-07-05 01:36:39.786: [ clsdmt][2978335632]Writing PID [24020] to the file [/u01/11.2.0/gr
id/ctss/init/xun2.pid]
2014-07-05 01:36:39.786: [ CTSS][2988825488]ctssslave_msh: Successfully connected to master
[1]
2014-07-05 01:36:39.827: [ CTSS][2988825488]ctssslave_swm: The magnitude [228530967053 usec
] of the offset [-228530967053 usec] is larger than [86400000000 usec] sec which is the CTSS l
imit.
2014-07-05 01:36:39.827: [ CTSS][2988825488]ctsselect_mmg9_3: Failed in clsctsselect_select
_mode [12]: Time offset is too much to be corrected
2014-07-05 01:36:40.582: [ CTSS][2978335632]ctss_checkcb: clsdm requested check alive. Retu
rns [40000050]
2014-07-05 01:36:40.582: [ CTSS][2988825488]ctsselect_mmg: CTSS daemon exiting [12].
2014-07-05 01:36:40.582: [ CTSS][2988825488]CTSS daemon aborting
查看两个节点的时钟：
[root@xun2 ctssd]# date
Sat Jul 5 02:06:09 CST 2014
[root@xun2 ctssd]# date 0707173614
Mon Jul 7 17:36:00 CST 2014
两个节点时间相差很远，导致CRS时间同步失败！