今天不小心重新启动了windows机器，导致用vmware做的2node redhat linux 4AS的oracle RAC其中一起机器重启后运行crs_stat -t时出现

CRS-0184: Cannot communicate with the CRS daemon错误。

使用$ORA_CRS_HOME/bin/crsctl stop crs和$ORA_CRS_HOME/bin/crsctl start crs后，仍然不起作用，查看$ORA_CRS_HOME/log/rac1/crsd/crsd.log发现：

2009-09-04 03:11:29.256: [  CRSEVT][3676748720]0CAAMonitorHandler :: 0:Could not join /u01/app/oracle/product/10.2.0/crs_1/bin/racgwrap(check)
category: 1234, operation: scls_process_join, loc: childcrash, OS error: 0, other: Abnormal termination of the child

2009-09-04 03:11:29.261: [  CRSEVT][3676748720]0CAAMonitorHandler :: 0:Action Script. /u01/app/oracle/product/10.2.0/crs_1/bin/racgwrap(check) timed out for ora.rac1.vip! (timeout=60)
2009-09-04 03:11:29.263: [  CRSAPP][3676748720]0CheckResource error for ora.rac1.vip error code = -2
2009-09-04 03:11:32.414: [  CRSRES][3623582640]0rac1 : CRS-1019: Resource ora.test.test2.inst (application) cannot run on rac1

2009-09-04 03:11:34.534: [  CRSRES][3676748720]0startRunnable: setting CLI values
2009-09-04 03:11:34.584: [  CRSRES][3676748720]0Attempting to start `ora.test.test1.inst` on member `rac1`
2009-09-04 03:11:35.692: [  CRSEVT][3740548016]0CAAMonitorHandler :: 0:Could not join /u01/app/oracle/product/10.2.0/crs_1/bin/racgwrap(start)
category: 1234, operation: scls_process_join, loc: childcrash, OS error: 0, other: Abnormal termination of the child

2009-09-04 03:11:35.691: [  CRSEVT][3740548016]0CAAMonitorHandler :: 0:Action Script. /u01/app/oracle/product/10.2.0/crs_1/bin/racgwrap(start) timed out for ora.rac2.vip! (timeout=60)
2009-09-04 03:11:35.693: [  CRSAPP][3740548016]0StartResource error for ora.rac2.vip error code = -2
2009-09-04 03:12:09.148: [  CRSRES][3751037872]0Start of `ora.rac1.gsd` on member `rac1` succeeded.
2009-09-04 03:12:38.965: [  CRSEVT][3740548016]0CAAMonitorHandler :: 0:Could not join /u01/app/oracle/product/10.2.0/crs_1/bin/racgwrap(stop)
category: 1234, operation: scls_process_join, loc: childcrash, OS error: 0, other: Abnormal termination of the child

2009-09-04 03:12:38.971: [  CRSEVT][3740548016]0CAAMonitorHandler :: 0:Action Script. /u01/app/oracle/product/10.2.0/crs_1/bin/racgwrap(stop) timed out for ora.rac2.vip! (timeout=60)
2009-09-04 03:12:38.972: [  CRSAPP][3740548016]0StopResource error for ora.rac2.vip error code = -2
2009-09-04 03:12:39.005: [  CRSRES][3740548016]0X_OP_StopResourceFailed : Stop Resource failed
(File: rti.cpp, line: 1803

2009-09-04 03:12:39.005: [  CRSRES][3740548016][ALERT]0`ora.rac2.vip` on member `rac1` has experienced an unrecoverable failure.
2009-09-04 03:12:39.007: [  CRSRES][3740548016]0Human intervention required to resume its availability.
2009-09-04 03:12:39.345: [  CRSRES][3740548016]0CRS-1028: Dependency analysis failed because of:
'Resource in UNKNOWN state: ora.rac2.vip'

后到google上搜索了一下，还真有解决办法：

the reason why it was unable to start was that each time server reboots it creates a socket at /tmp/.oracle or /var/tmp/.oracle directory .

Also if there are previously existing sockets they cannot be reused or deleted automatically from this directory .oracle.

Therefore the solution to above problem was obtained by deleting all the files ins

the reason why it was unable to start was that each time server reboots it creates a socket at /tmp/.oracle or /var/tmp/.oracle directory .

Also if there are previously existing sockets they cannot be reused or deleted automatically from this directory .oracle.

Therefore the solution to above problem was obtained by deleting all the files inside .oracle directoery in /var/tmp or /tmp.

ide .oracle directoery in /var/tmp or /tmp.

然后重新启动机器就可以了。

oracle，想说爱你还真不容易。