os: centos 7.4
db: oracle 12.2.0.1

规划如下:

testcluster1-scan.peiyongbin.com
192.168.56.141
192.168.56.142
192.168.56.143node1                         node2vip   192.168.56.131                  192.168.56.132pub(eth0)   192.168.56.121                  192.168.56.122
priv(eth1)   192.168.156.121                 192.168.156.122
priv(eth2)   192.168.156.131                 192.168.156.132

问题

通过 sqlplus 连接到 rdbms 实例,提示实例未启动,随后 startup,但是报错

# su - oracle
$ echo $ORACLE_SID
orcl01$ ps -fu oracle |sort
oracle   12187     1  0 Apr26 ?        00:00:40 ora_pmon_orcl01
oracle   12191     1  0 Apr26 ?        00:01:02 ora_psp0_orcl01
oracle   12207     1  2 Apr26 ?        01:02:04 ora_vktm_orcl01
oracle   12216     1  0 Apr26 ?        00:00:15 ora_gen0_orcl01
oracle   12220     1  0 Apr26 ?        00:00:05 ora_mman_orcl01
oracle   12228     1  0 Apr26 ?        00:03:10 ora_diag_orcl01
oracle   12232     1  0 Apr26 ?        00:00:56 ora_dbrm_orcl01
oracle   12236     1  0 Apr26 ?        00:03:49 ora_vkrm_orcl01
oracle   12240     1  0 Apr26 ?        00:00:30 ora_ping_orcl01
oracle   12244     1  0 Apr26 ?        00:00:04 ora_acms_orcl01
oracle   12248     1  0 Apr26 ?        00:18:50 ora_dia0_orcl01$ sqlplus / as sysdba;SQL*Plus: Release 12.1.0.2.0 Production on Sun Apr 28 08:40:33 2019Copyright (c) 1982, 2014, Oracle.  All rights reserved.Connected to an idle instance.SQL> startup
ORA-01078: failure in processing system parameters
ORA-01565: error in identifying file '+DG_DATA01/orcl0/spfileorcl0.ora'
ORA-17503: ksfdopn:2 Failed to open file +DG_DATA01/orcl0/spfileorcl0.ora
ORA-00603: ORACLE server session terminated by fatal error
ORA-27504: IPC error creating OSD context
ORA-27300: OS system dependent operation:sendmsg failed with status: 105
ORA-27301: OS failure message: No buffer space available
ORA-27302: failure occurred at: sskgxpsnd2

切换到 grid 查看

# su - grid
$ echo $ORACLE_SID
+ASM1$ sqlplus / as sysasmSQL*Plus: Release 12.1.0.2.0 Production on Sun Apr 28 08:45:54 2019Copyright (c) 1982, 2014, Oracle.  All rights reserved.Connected to:
Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production
With the Real Application Clusters and Automatic Storage Management optionsSQL> show parameter memory;NAME                    TYPE    VALUE
------------------------------------ ----------- ------------------------------
memory_max_target            big integer 1076M
memory_target                big integer 1076M

$ crsctl stat res -t
--------------------------------------------------------------------------------
Name           Target  State        Server                   State details
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.DG_DATA01.dgONLINE  ONLINE       node1                    STABLEONLINE  ONLINE       node2                    STABLE
ora.DG_FRA.dgONLINE  ONLINE       node1                    STABLEONLINE  ONLINE       node2                    STABLE
ora.LISTENER.lsnrONLINE  ONLINE       node1                    STABLEONLINE  ONLINE       node2                    STABLE
ora.asmONLINE  ONLINE       node1                    Started,STABLEONLINE  ONLINE       node2                    Started,STABLE
ora.net1.networkONLINE  ONLINE       node1                    STABLEONLINE  ONLINE       node2                    STABLE
ora.onsONLINE  ONLINE       node1                    STABLEONLINE  ONLINE       node2                    STABLE
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.LISTENER_SCAN1.lsnr1        ONLINE  ONLINE       node2                    STABLE
ora.LISTENER_SCAN2.lsnr1        ONLINE  ONLINE       node1                    STABLE
ora.LISTENER_SCAN3.lsnr1        ONLINE  ONLINE       node1                    STABLE
ora.MGMTLSNR1        ONLINE  ONLINE       node1                    169.254.123.21 192.168.156.131 192.168.156.121,STABLE
ora.cvu1        ONLINE  ONLINE       node1                    STABLE
ora.mgmtdb1        ONLINE  ONLINE       node1                    Open,STABLE
ora.node1.vip1        ONLINE  ONLINE       node1                    STABLE
ora.node2.vip1        ONLINE  ONLINE       node2                    STABLE
ora.oc4j1        ONLINE  ONLINE       node1                    STABLE
ora.orcl0.db1        ONLINE  ONLINE       node1                    Open,STABLE2        ONLINE  ONLINE       node2                    Open,STABLE
ora.scan1.vip1        ONLINE  ONLINE       node2                    STABLE
ora.scan2.vip1        ONLINE  ONLINE       node1                    STABLE
ora.scan3.vip1        ONLINE  ONLINE       node1                    STABLE
--------------------------------------------------------------------------------

分析

查看 alert_orcl01.log 日志


Sat Apr 27 01:30:08 2019
skgxpvfynet: mtype: 61 process 16114 failed because of a resource problem in the OS. The OS has most likely run out of buffers (rval: 4)
Errors in file /u01/app/oracle/diag/rdbms/orcl0/orcl01/trace/orcl01_ora_16115.trc  (incident=38427):
ORA-00603: ORACLE server session terminated by fatal error
ORA-27504: IPC error creating OSD context
ORA-27300: OS system dependent operation:sendmsg failed with status: 105
ORA-27301: OS failure message: No buffer space available
ORA-27302: failure occurred at: sskgxpsnd2
Sat Apr 27 01:30:08 2019
opiodr aborting process unknown ospid (16115) as a result of ORA-603
Errors in file /u01/app/oracle/diag/rdbms/orcl0/orcl01/trace/orcl01_ora_16114.trc  (incident=38428):
ORA-00603: ORACLE server session terminated by fatal error
ORA-27504: IPC error creating OSD context
ORA-27300: OS system dependent operation:sendmsg failed with status: 105
ORA-27301: OS failure message: No buffer space available
ORA-27302: failure occurred at: sskgxpsnd2Sat Apr 27 04:44:41 2019
skgxpvfynet: mtype: 61 process 25588 failed because of a resource problem in the OS. The OS has most likely run out of buffers (rval: 4)
Errors in file /u01/app/oracle/diag/rdbms/orcl0/orcl01/trace/orcl01_m000_25588.trc  (incident=38429):
ORA-00603: ORACLE server session terminated by fatal error
ORA-27504: IPC error creating OSD context
ORA-27300: OS system dependent operation:sendmsg failed with status: 105
ORA-27301: OS failure message: No buffer space available
ORA-27302: failure occurred at: sskgxpsnd2
opidrv aborting process M000 ospid (25588) as a result of ORA-603Sat Apr 27 06:34:20 2019
skgxpvfynet: mtype: 61 process 5653 failed because of a resource problem in the OS. The OS has most likely run out of buffers (rval: 4)
Errors in file /u01/app/oracle/diag/rdbms/orcl0/orcl01/trace/orcl01_m000_5653.trc  (incident=38430):
ORA-00603: ORACLE server session terminated by fatal error
ORA-27504: IPC error creating OSD context
ORA-27300: OS system dependent operation:sendmsg failed with status: 105
ORA-27301: OS failure message: No buffer space available
ORA-27302: failure occurred at: sskgxpsnd2
opidrv aborting process M000 ospid (5653) as a result of ORA-603
Sat Apr 27 06:34:22 2019
Process m000 died, see its trace file
Sat Apr 27 06:34:27 2019
skgxpvfynet: mtype: 61 process 5672 failed because of a resource problem in the OS. The OS has most likely run out of buffers (rval: 4)
Errors in file /u01/app/oracle/diag/rdbms/orcl0/orcl01/trace/orcl01_m001_5672.trc  (incident=38431):
ORA-00603: ORACLE server session terminated by fatal error
ORA-27504: IPC error creating OSD context
ORA-27300: OS system dependent operation:sendmsg failed with status: 105
ORA-27301: OS failure message: No buffer space available
ORA-27302: failure occurred at: sskgxpsnd2
opidrv aborting process M001 ospid (5672) as a result of ORA-603
Process m001 died, see its trace file
Sat Apr 27 06:34:56 2019
skgxpvfynet: mtype: 61 process 5780 failed because of a resource problem in the OS. The OS has most likely run out of buffers (rval: 4)
Errors in file /u01/app/oracle/diag/rdbms/orcl0/orcl01/trace/orcl01_j001_5780.trc  (incident=38432):
ORA-00603: ORACLE server session terminated by fatal error
ORA-27504: IPC error creating OSD context
ORA-27300: OS system dependent operation:sendmsg failed with status: 105
ORA-27301: OS failure message: No buffer space available
ORA-27302: failure occurred at: sskgxpsnd2
opidrv aborting process J001 ospid (5780) as a result of ORA-603
Sat Apr 27 06:34:58 2019
Process J001 died, see its trace file
Sat Apr 27 06:34:58 2019
kkjcre1p: unable to spawn jobq slave process
Sat Apr 27 06:34:58 2019
Errors in file /u01/app/oracle/diag/rdbms/orcl0/orcl01/trace/orcl01_cjq0_12778.trc:Sat Apr 27 16:26:51 2019
Process m000 died, see its trace file
Process m000 died, see its trace file
Process m000 died, see its trace file
Process m000 died, see its trace fileSat Apr 27 16:29:50 2019
kkjcre1p: unable to spawn jobq slave process
Sat Apr 27 16:29:50 2019
Errors in file /u01/app/oracle/diag/rdbms/orcl0/orcl01/trace/orcl01_cjq0_12778.trc:
Process J000 died, see its trace file
Sat Apr 27 16:29:52 2019
kkjcre1p: unable to spawn jobq slave process
Sat Apr 27 16:29:52 2019
Errors in file /u01/app/oracle/diag/rdbms/orcl0/orcl01/trace/orcl01_cjq0_12778.trc:
Process m000 died, see its trace file
Process J000 died, see its trace file

SQL> startup
ORA-01078: failure in processing system parameters
ORA-01565: error in identifying file '+DG_DATA01/orcl0/spfileorcl0.ora'
ORA-17503: ksfdopn:2 Failed to open file +DG_DATA01/orcl0/spfileorcl0.ora
ORA-00603: ORACLE server session terminated by fatal error
ORA-27504: IPC error creating OSD context
ORA-27300: OS system dependent operation:sendmsg failed with status: 105
ORA-27301: OS failure message: No buffer space available
ORA-27302: failure occurred at: sskgxpsnd2

查看文档后需要做如下调整:

增加 vm.min_free_kbytes 参数，值为物理内存的0.4%。（例如8g内存，vm.min_free_kbytes=810241024*0.004=33554）
修改 lo mtu 为 16436 .临时修改 ifconfig lo mtu 16436 或者永久修改 vi /etc/sysconfig/network-scripts/ifcfg-lo 的 MTU=16436

参考:

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ORA-27301: OS failure message: No buffer space available

问题

分析

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