ORA-00603\ORA-27504\ORA-27300\ORA-27
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Sat Jul 27 02:06:59 2019
skgxpvfynet: mtype: 61 process 155678 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/newmdb/nexxxdb1/trace/nexxxdb1_ora_155678.trc (incident=968005): 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 很早以前遇到过IPC这样的问题无数，这个就是咱们现在大内存的主机下，缓冲区碎片整理单元有点小，并且回环地址的mtu值有问题。我们按照官方MOS文档指示进行更改即可；
For example,on a server which is having 256GB RAM,the parameter vm.min_free_kbytes should be set to 1073742 On NUMA Enabled Systems,the value of vm.min_free_kbytes should be multiplied by the number of NUMA nodes since the value is to be split across all the nodes. On NUMA Enabled Systems,the value of vm.min_free_kbytes = n * 0.4% of total Physical Memory. Here ‘n‘ is the number of NUMA nodes.
#ifconfig lo mtu 16436 To make the change persistent over reboot add the following line in the file /etc/sysconfig/network-scripts/ifcfg-lo : MTU=16436 #service network restart Note : While making the changes in CRS nodes,if network is restarted while CRS is up,it can hung CRS. So cluster services should be stopped prior to the network restart. （编辑：李大同） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |