Intermittent ASM or DB instance eviction due to IPC Send timeout or ORA-27508/ORA-27301
There was this customer who was having all sorts of problems. It was a Oracle 11gR2 2-Node RAC cluster running on Solaris 11.
- Node Eviction
- ASM Instance Eviction
- DB Instance Eviction
In the ASM logs
ORA-27508: IPC error sending a message ORA-27300: OS system dependent operation:sendmsg failed with status: 128 ORA-27301: OS failure message: Network is unreachable ORA-27302: failure occurred at: sskgxpsnd2
In DB_alert logs
ORA-27508: IPC error sending a message
Finally, we found the root cause, it’s a bug dated 05 Mar 2014.
For more information, please refer to MOS [1594578.1]