Oracle11gR2RAC节点crash故障分析
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环境：AIX 7100Oracle 11gR2 RAC 详细版本：11.2.0.4 现象： 节点2 CRS HANG住了，CRSCTL命令完全没反应，直接干掉CRS进程主机重
环境：AIX 7100
Oracle 11gR2 RAC
详细版本：11.2.0.4
现象：
节点2 CRS HANG住了，，CRSCTL命令完全没反应，直接干掉CRS进程主机重启后，但VIP没飘到节点1
分析思路；
1、DB下的alert日志及相关trace日志。
2. 查看所有节点的"errpt -a"的输出。
3. 查看发生问题时所有节点的GI日志：
/etc/oracle/lastgasp/*, or /var/opt/oracle/lastgasp/*(If have)
注：如果是CRS发起的重启主机会在/etc/oracle/lastgasp/目录下的文件中添加一条记录。
4. 查看发生问题时所有节点的LMON, LMS*,LMD0 trace files。
5. 查看发生问题时所有节点OSW的所有输出。
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在CentOS 6.4下安装Oracle 11gR2(x64)
Oracle 11gR2 在VMWare虚拟机中安装步骤
Debian 下 安装 Oracle 11g XE R2
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详细分析过程如下：
节点1DB的alert日志：
Tue Mar 25 12:59:07 2014
Thread 1 advanced to log sequence 245 (LGWR switch)
Current log# 2 seq# 245 mem# 0: +SYSDG/dbracdb/onlinelog/group_2.264.840562709
Current log# 2 seq# 245 mem# 1: +SYSDG/dbracdb/onlinelog/group_2.265.840562727
Tue Mar 25 12:59:20 2014
Archived Log entry 315 added for thread 1 sequence 244 ID 0xffffffff82080958 dest 1:
Tue Mar 25 13:14:54 2014
IPC Send timeout detected. Sender: ospid 6160700 [oracle@dbrac1 (LMS0)]
Receiver: inst 2 binc 291585594 ospid 11010320
IPC Send timeout to 2.1 inc 50 for msg type 65518 from opid 12
Tue Mar 25 13:14:59 2014
Communications reconfiguration: instance_number 2
Tue Mar 25 13:15:01 2014
IPC Send timeout detected. Sender: ospid 12452050 [oracle@dbrac1 (LMS1)]
Receiver: inst 2 binc 291585600 ospid 11534636
IPC Send timeout to 2.2 inc 50 for msg type 65518 from opid 13
Tue Mar 25 13:15:22 2014
IPC Send timeout detected. Sender: ospid 10682630 [oracle@dbrac1 (TNS V1-V3)]
Receiver: inst 2 binc 50 ospid 6095056
Tue Mar 25 13:15:25 2014
Detected an inconsistent instance membership by instance 1
Evicting instance 2 from cluster
Waiting for instances to leave: 2
Tue Mar 25 13:15:26 2014
Dumping diagnostic data in directory=[cdmp_20140325131526], requested by (instance=2, osid=8192018 (LMD0)), summary=[abnormal instance termination].
Tue Mar 25 13:15:42 2014
Reconfiguration started (old inc 50, new inc 54)
List of instances:
1 (myinst: 1)
...
Tue Mar 25 13:15:52 2014
Archived Log entry 316 added for thread 2 sequence 114 ID 0xffffffff82080958 dest 1:
Tue Mar 25 13:15:53 2014
ARC3: Archiving disabled thread 2 sequence 115
Archived Log entry 317 added for thread 2 sequence 115 ID 0xffffffff82080958 dest 1:
Tue Mar 25 13:16:37 2014
Thread 1 advanced to log sequence 246 (LGWR switch)
Current log# 3 seq# 246 mem# 0: +SYSDG/dbracdb/onlinelog/group_3.266.840562735
Current log# 3 seq# 246 mem# 1: +SYSDG/dbracdb/onlinelog/group_3.267.840562747
Tue Mar 25 13:16:46 2014
Decreasing number of real time LMS from 2 to 0
Tue Mar 25 13:16:51 2014
Archived Log entry 318 added for thread 1 sequence 245 ID 0xffffffff82080958 dest 1:
Tue Mar 25 13:20:50 2014
IPC Send timeout detected. Sender: ospid 9306248 [oracle@dbrac1 (PING)]
Receiver: inst 2 binc 291585377 ospid 2687058
Tue Mar 25 13:30:08 2014
Thread 1 advanced to log sequence 247 (LGWR switch)
Current log# 1 seq# 247 mem# 0: +SYSDG/dbracdb/onlinelog/group_1.262.840562653
Current log# 1 seq# 247 mem# 1: +SYSDG/dbracdb/onlinelog/group_1.263.840562689
Tue Mar 25 13:30:20 2014
Archived Log entry 319 added for thread 1 sequence 246 ID 0xffffffff82080958 dest 1:
Tue Mar 25 13:45:23 2014
Thread 1 advanced to log sequence 248 (LGWR switch)
Current log# 2 seq# 248 mem# 0: +SYSDG/dbracdb/onlinelog/group_2.264.840562709
Current log# 2 seq# 248 mem# 1: +SYSDG/dbracdb/onlinelog/group_2.265.840562727
节点2DB的alert日志：
Tue Mar 25 12:07:15 2014
Archived Log entry 309 added for thread 2 sequence 112 ID 0xffffffff82080958 dest 1:
Tue Mar 25 12:22:22 2014
Dumping diagnostic data in directory=[cdmp_20140325122222], requested by (instance=1, osid=7012828), summary=[incident=384673].
Tue Mar 25 12:45:21 2014
Thread 2 advanced to log sequence 114 (LGWR switch)
Current log# 6 seq# 114 mem# 0: +SYSDG/dbracdb/onlinelog/group_6.274.840563009
Current log# 6 seq# 114 mem# 1: +SYSDG/dbracdb/onlinelog/group_6.275.840563017
Tue Mar 25 12:45:22 2014
Archived Log entry 313 added for thread 2 sequence 113 ID 0xffffffff82080958 dest 1:
Tue Mar 25 13:14:57 2014
IPC Send timeout detected. Receiver ospid 11010320
Tue Mar 25 13:14:57 2014
Errors in file /oraclelog/diag/rdbms/dbracdb/dbracdb2/trace/dbracdb2_lms0_11010320.trc:
IPC Send timeout detected. Receiver ospid 11534636 [
Tue Mar 25 13:15:01 2014
Errors in file /oraclelog/diag/rdbms/dbracdb/dbracdb2/trace/dbracdb2_lms1_11534636.trc:
Tue Mar 25 13:15:25 2014
LMS0 (ospid: 11010320) has detected no messaging activity from instance 1
LMS0 (ospid: 11010320) issues an IMR to resolve the situation
Please check LMS0 trace file for more detail.
Tue Mar 25 13:15:25 2014
Suppressed nested communications reconfiguration: instance_number 1
Detected an inconsistent instance membership by instance 1
Tue Mar 25 13:15:25 2014
Received an instance abort message from instance 1
Please check instance 1 alert and LMON trace files for detail.
LMD0 (ospid: 8192018): terminating the instance due to error 481
Tue Mar 25 13:15:26 2014
ORA-1092 : opitsk aborting process
Tue Mar 25 13:15:29 2014
System state dump requested by (instance=2, osid=8192018 (LMD0)), summary=[abnormal instance termination].
System State dumped to trace file /oraclelog/diag/rdbms/dbracdb/dbracdb2/trace/dbracdb2_diag_9699724_20140325131529.trc
Instance terminated by LMD0, pid = 8192018
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