RMAN Backups Hang using dNFS With NFSv4
(Doc ID 2504179.1)
Last updated on APRIL 17, 2023
Applies to:Oracle Database - Enterprise Edition - Version 22.214.171.124 and later
Information in this document applies to any platform.
o A RMAN backup for a 12.2..0.1 database hangs eventually the processes wait event is "Disk file operations I/O".
o Backups are done to ZFS file systems. 126.96.36.199 and 188.8.131.52 databases on the cluster are able to run backups with no issues.
o The dNFS traces, after setting events, shows a process sending continuously:
2018-10-31 12:59:39.053 :Direct NFS:kgnfsv4.c@4091:kgnfs_complete_create4():22:50842: status 10011
2018-10-31 12:59:39.053 :Direct NFS:kgnfsv4.c@5341:kgnfs_nfs4error():22:50842: State management error 10011
2018-10-31 12:59:39.053 :Direct NFS:kgnfs.c@13558:kgnfs_processmsg():22:50842: Got state management error 10011, reissuing 1 ops
2018-10-31 12:59:39.053 :Direct NFS:kgnfs.c@3864:kgnfs_renew_state():22:50842: Renewing state for error 10011
2018-10-31 12:59:39.053 :Direct NFS:kgnfs.c@3994:kgnfs_renew_state():22:50842: Return status is 0
184.108.40.206 was just installed
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