因asm sga_target设置不当导致11gr2 rac无法正常启动

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标题:因asm sga_target设置不当导致11gr2 rac无法正常启动

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2014年第一个故障排查和解决:同事反馈给我说solaris 11.2 两节点rac无法启动,让我帮忙看下。通过分析是因为sga_target参数设置不合理导致asm无法正常启动
GI无法正常启动

grid@zwq-rpt1:~$crsctl status resource -t
CRS-4535: Cannot communicate with Cluster Ready Services
CRS-4000: Command Status failed, or completed with errors.
grid@zwq-rpt1:~$crsctl status resource -t -init
--------------------------------------------------------------------------------
NAME           TARGET  STATE        SERVER                   STATE_DETAILS       
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.asm
      1        ONLINE  OFFLINE                               Instance Shutdown   
ora.cluster_interconnect.haip
      1        ONLINE  ONLINE       zwq-rpt1                                     
ora.crf
      1        ONLINE  ONLINE       zwq-rpt1                                     
ora.crsd
      1        ONLINE  OFFLINE                                                   
ora.cssd
      1        ONLINE  ONLINE       zwq-rpt1                                     
ora.cssdmonitor
      1        ONLINE  ONLINE       zwq-rpt1                                     
ora.ctssd
      1        ONLINE  ONLINE       zwq-rpt1                 ACTIVE:0            
ora.diskmon
      1        OFFLINE OFFLINE                                                   
ora.evmd
      1        ONLINE  INTERMEDIATE zwq-rpt1                                     
ora.gipcd
      1        ONLINE  ONLINE       zwq-rpt1                                     
ora.gpnpd
      1        ONLINE  ONLINE       zwq-rpt1                                     
ora.mdnsd
      1        ONLINE  ONLINE       zwq-rpt1                                     

asm未正常启动

GI日志报错

2014-01-01 00:40:47.708
[cssd(1418)]CRS-1605:CSSD voting file is online: /dev/rdsk/emcpower0a; details in /export/home/app/grid/log/zwq-rpt1/cssd/ocssd.log.
2014-01-01 00:40:53.234
[cssd(1418)]CRS-1601:CSSD Reconfiguration complete. Active nodes are zwq-rpt1 zwq-rpt2 .
2014-01-01 00:40:56.659
[ctssd(1483)]CRS-2407:The new Cluster Time Synchronization Service reference node is host zwq-rpt2.
2014-01-01 00:40:56.661
[ctssd(1483)]CRS-2401:The Cluster Time Synchronization Service started on host zwq-rpt1.
2014-01-01 00:41:02.016
[ctssd(1483)]CRS-2408:The clock on host zwq-rpt1 has been updated by the Cluster Time Synchronization Service to be synchronous with the mean cluster time.
2014-01-01 00:43:23.874
[/export/home/app/grid/bin/oraagent.bin(1348)]CRS-5019:All OCR locations are on ASM disk groups [], and none of these disk groups are mounted. Details are at "(:CLSN00100:)" in "/export/home/app/grid/log/zwq-rpt1/agent/ohasd/oraagent_grid/oraagent_grid.log".
2014-01-01 00:45:42.837
[/export/home/app/grid/bin/oraagent.bin(1348)]CRS-5019:All OCR locations are on ASM disk groups [], and none of these disk groups are mounted. Details are at "(:CLSN00100:)" in "/export/home/app/grid/log/zwq-rpt1/agent/ohasd/oraagent_grid/oraagent_grid.log".
2014-01-01 00:48:02.087
[/export/home/app/grid/bin/oraagent.bin(1348)]CRS-5019:All OCR locations are on ASM disk groups [], and none of these disk groups are mounted. Details are at "(:CLSN00100:)" in "/export/home/app/grid/log/zwq-rpt1/agent/ohasd/oraagent_grid/oraagent_grid.log".
2014-01-01 00:48:18.836
[ohasd(1083)]CRS-2807:Resource 'ora.asm' failed to start automatically.
2014-01-01 00:48:18.837
[ohasd(1083)]CRS-2807:Resource 'ora.crsd' failed to start automatically.
2014-01-01 01:05:15.396
[/export/home/app/grid/bin/oraagent.bin(1348)]CRS-5019:All OCR locations are on ASM disk groups [CRSDG], and none of these disk groups are mounted. Details are at "(:CLSN00100:)" in "/export/home/app/grid/log/zwq-rpt1/agent/ohasd/oraagent_grid/oraagent_grid.log".
2014-01-01 01:05:45.101
[/export/home/app/grid/bin/oraagent.bin(1348)]CRS-5019:All OCR locations are on ASM disk groups [CRSDG], and none of these disk groups are mounted. Details are at "(:CLSN00100:)" in "/export/home/app/grid/log/zwq-rpt1/agent/ohasd/oraagent_grid/oraagent_grid.log".
2014-01-01 01:06:15.104
[/export/home/app/grid/bin/oraagent.bin(1348)]CRS-5019:All OCR locations are on ASM disk groups [CRSDG], and none of these disk groups are mounted. Details are at "(:CLSN00100:)" in "/export/home/app/grid/log/zwq-rpt1/agent/ohasd/oraagent_grid/oraagent_grid.log".

这里较为明显的看到,因为asm磁盘组异常导致ocr无法被访问导致crs无法正常启动

ORAAGENT日志

2014-01-01 00:43:23.870: [ora.asm][9] {0:0:2} [start] InstConnection::connectInt (2) Exception OCIException
2014-01-01 00:43:23.870: [ora.asm][9] {0:0:2} [start] InstConnection:connect:excp OCIException OCI error 604
2014-01-01 00:43:23.870: [ora.asm][9] {0:0:2} [start] DgpAgent::queryDgStatus excp ORA-00604: error occurred at recursive SQL level 1
ORA-04031: unable to allocate 32 bytes of shared memory ("shared pool","unknown object","KGLH0^34f764db","kglHeapInitialize:temp")

报了较为清晰的ORA-4031错误,检查asm日志

ASM日志报错

Wed Jan 01 00:47:33 2014
ORACLE_BASE not set in environment. It is recommended
that ORACLE_BASE be set in the environment
Reusing ORACLE_BASE from an earlier startup = /export/home/app/oracle
Wed Jan 01 00:47:39 2014
Errors in file /export/home/app/oracle/diag/asm/+asm/+ASM1/trace/+ASM1_ora_1728.trc  (incident=291447):
ORA-04031: unable to allocate 32 bytes of shared memory ("shared pool","unknown object","KGLH0^34f764db","kglHeapInitialize:temp")
Incident details in: /export/home/app/oracle/diag/asm/+asm/+ASM1/incident/incdir_291447/+ASM1_ora_1728_i291447.trc
Wed Jan 01 00:47:48 2014
Dumping diagnostic data in directory=[cdmp_20140101004748], requested by (instance=1, osid=1728), summary=[incident=291447].
Use ADRCI or Support Workbench to package the incident.
See Note 411.1 at My Oracle Support for error and packaging details.
Wed Jan 01 00:47:53 2014
Errors in file /export/home/app/oracle/diag/asm/+asm/+ASM1/trace/+ASM1_ora_1730.trc  (incident=291448):
ORA-04031: unable to allocate 32 bytes of shared memory ("shared pool","unknown object","KGLH0^34f764db","kglHeapInitialize:temp")
Incident details in: /export/home/app/oracle/diag/asm/+asm/+ASM1/incident/incdir_291448/+ASM1_ora_1730_i291448.trc
Wed Jan 01 00:48:01 2014
Dumping diagnostic data in directory=[cdmp_20140101004801], requested by (instance=1, osid=1730), summary=[incident=291448].
Use ADRCI or Support Workbench to package the incident.
See Note 411.1 at My Oracle Support for error and packaging details.
Wed Jan 01 00:48:07 2014
Errors in file /export/home/app/oracle/diag/asm/+asm/+ASM1/trace/+ASM1_ora_1732.trc  (incident=291449):
ORA-04031: unable to allocate 32 bytes of shared memory ("shared pool","unknown object","KGLH0^34f764db","kglHeapInitialize:temp")
Incident details in: /export/home/app/oracle/diag/asm/+asm/+ASM1/incident/incdir_291449/+ASM1_ora_1732_i291449.trc
Wed Jan 01 00:48:16 2014
Dumping diagnostic data in directory=[cdmp_20140101004816], requested by (instance=1, osid=1732), summary=[incident=291449].
Use ADRCI or Support Workbench to package the incident.
See Note 411.1 at My Oracle Support for error and packaging details.
Wed Jan 01 00:48:16 2014
License high water mark = 1
USER (ospid: 1736): terminating the instance
Instance terminated by USER, pid = 1736

这里可以清晰的看到,因为shared pool不足,导致asm报ora-4031错误,从而使得asm无法正常启动

分析原因

Starting up:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
With the Real Application Clusters and Automatic Storage Management options.
ORACLE_HOME = /export/home/app/grid
System name:	SunOS
Node name:	zwq-rpt1
Release:	5.11
Version:	11.1
Machine:	sun4v
Using parameter settings in server-side spfile +CRSDG/zwq-rpt-cluster/asmparameterfile/registry.253.823992831
System parameters with non-default values:
  sga_max_size             = 2G
  large_pool_size          = 16M
  instance_type            = "asm"
  sga_target               = 0
  remote_login_passwordfile= "EXCLUSIVE"
  asm_diskstring           = "/dev/rdsk/*"
  asm_diskgroups           = "FRADG"
  asm_diskgroups           = "DATADG"
  asm_power_limit          = 1
  diagnostic_dest          = "/export/home/app/oracle"

这里可以看到sga_target被设置为了0,而shared pool又未被配置,这里因为shared pool不足从而出现了ORA-4031,从而导致crs在启动asm的过程失败,从而使得ocr不能被访问,进而使得crs不能正常启动.

处理方法
1.编辑pfile

grid@zwq-rpt1:/export/home/app/oracle/diag/asm/+asm/+ASM1/trace$vi /tmp/asm.pfile

  memory_target = 2G
  large_pool_size          = 16M
  instance_type            = "asm"
  sga_target               = 0
  remote_login_passwordfile= "EXCLUSIVE"
  asm_diskstring           = "/dev/rdsk/*"
  asm_diskgroups           = "FRADG"
  asm_diskgroups           = "DATADG"
  asm_power_limit          = 1
  diagnostic_dest          = "/export/home/app/oracle"

2.启动asm

grid@zwq-rpt1:/export/home/app/oracle/diag/asm/+asm/+ASM1/trace$sqlplus / as sysasm

SQL*Plus: Release 11.2.0.3.0 Production on Wed Jan 1 01:04:10 2014

Copyright (c) 1982, 2011, Oracle.  All rights reserved.

Connected to an idle instance.

SQL> startup pfile='/tmp/asm.pfile'
ASM instance started

Total System Global Area 2138521600 bytes
Fixed Size                  2161024 bytes
Variable Size            2102806144 bytes
ASM Cache                  33554432 bytes
ASM diskgroups mounted

3. 创建spfile

SQL> create spfile='+CRSDG' FROM PFILE='/tmp/asm.pfile';

File created.

--asm alert日志
Wed Jan 01 01:08:59 2014
NOTE: updated gpnp profile ASM SPFILE to 
NOTE: updated gpnp profile ASM diskstring: /dev/rdsk/*
NOTE: updated gpnp profile ASM diskstring: /dev/rdsk/*
NOTE: updated gpnp profile ASM SPFILE to +CRSDG/zwq-rpt-cluster/asmparameterfile/registry.253.835664939

4. 关闭asm

SQL> shutdown immediate
ORA-15097: cannot SHUTDOWN ASM instance with connected client (process 1971)
SQL> shutdown abort
ASM instance shutdown

5. 重启crs

root@zwq-rpt1:~# crsctl stop crs -f
root@zwq-rpt1:~# crsctl start crs

6. 重启其他节点crs

root@zwq-rpt2:~# crsctl stop crs -f
root@zwq-rpt2:~# crsctl start crs

7. 检查结果

root@zwq-rpt1:~# crsctl status res -t
--------------------------------------------------------------------------------
NAME           TARGET  STATE        SERVER                   STATE_DETAILS       
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.CRSDG.dg
               ONLINE  ONLINE       zwq-rpt1                                     
               ONLINE  ONLINE       zwq-rpt2                                     
ora.DATADG.dg
               ONLINE  ONLINE       zwq-rpt1                                     
               ONLINE  ONLINE       zwq-rpt2                                     
ora.FRADG.dg
               ONLINE  ONLINE       zwq-rpt1                                     
               ONLINE  ONLINE       zwq-rpt2                                     
ora.LISTENER.lsnr
               ONLINE  ONLINE       zwq-rpt1                                     
               ONLINE  ONLINE       zwq-rpt2                                     
ora.asm
               ONLINE  ONLINE       zwq-rpt1                 Started             
               ONLINE  ONLINE       zwq-rpt2                 Started             
ora.gsd
               OFFLINE OFFLINE      zwq-rpt1                                     
               OFFLINE OFFLINE      zwq-rpt2                                     
ora.net1.network
               ONLINE  ONLINE       zwq-rpt1                                     
               ONLINE  ONLINE       zwq-rpt2                                     
ora.ons
               ONLINE  ONLINE       zwq-rpt1                                     
               ONLINE  ONLINE       zwq-rpt2                                     
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.LISTENER_SCAN1.lsnr
      1        ONLINE  ONLINE       zwq-rpt1                                     
ora.cvu
      1        ONLINE  ONLINE       zwq-rpt1                                     
ora.oc4j
      1        ONLINE  ONLINE       zwq-rpt1                                     
ora.rptdb.db
      1        ONLINE  ONLINE       zwq-rpt1                 Open                
      2        ONLINE  ONLINE       zwq-rpt2                 Open                
ora.scan1.vip
      1        ONLINE  ONLINE       zwq-rpt1                                     
ora.zwq-rpt1.vip
      1        ONLINE  ONLINE       zwq-rpt1                                     
ora.zwq-rpt2.vip
      1        ONLINE  ONLINE       zwq-rpt2                  

至此恢复正常,2014年第一个故障顺利解决

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