GEN0 process hangs when dnfs is enabled and NFSv4 is being used with ZFS storage
(Doc ID 2755257.1)
Last updated on APRIL 17, 2023
Applies to:Oracle Database - Enterprise Edition - Version 184.108.40.206 to 220.127.116.11 [Release 12.1]
Information in this document applies to any platform.
GEN0 process hangs when dnfs is enabled and NFSv4 is being used with ZFS storage.
The process hang leads to several symptoms including:
- scheduler job stop hangs indefinitely on 'enq: JS - queue lock'.
- clean instance shutdown hangs.
Other symptoms may include ORA-27478 error when attempting to stop a scheduler job.
So, in summary:
- CJQ process hangs
- shutdown immediate hangs
GEN0 top call stack functions are:
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