Oracle 19c集群安装踩坑记录-多私网
安装好19c集群与数据库软件之后，创建数据库时，尝试两次都报错，尝试手动启动也报错
[FATAL] PRCR-1079 : Failed to start resource ora.hisdb.db
CRS-5017: The resource action "ora. testdb.db start" encountered the following error:
ORA-03113: end-of-file on communication channel
Process ID: 0
Session ID: 0 Serial number: 0
. For details refer to "(:CLSN00107:)" in "/u01/app/grid/diag/crs/testdb/crs/trace/crsd_oraagent_oracle.trc".
在数据库实例告警日志中，有如下文本：
2022-11-22T14:17:03.051481+08:00
No connectivity to other instances in the cluster during startup. Hence, LMON is terminating the instance. Please check the LMON trace file for details. Also, please check the network logs of this instance along with clusterwide network health for problems and then re-start this instance.
LMON (ospid: ): terminating the instance due to ORA error
最终找到了如下网页：
oracle 12c RAC安装，实例不能多节点同时启动_ITPUB博客
因为我采用了多私网，/etc/sysctl.conf中应当加入：
net.ipv4.conf.eno7.rp_filter = 2
net.ipv4.conf.eno8.rp_filter = 2
官网关于此问题的说明：
来自 “ ITPUB博客 ” ，链接：https://blog.itpub.net/8520577/viewspace-2924566/ ，如需转载，请注明出处，否则将追究法律责任。
