DNFS DB hangs after losing one path (Doc ID 2286174.1)

Last updated on JULY 13, 2017

Applies to:

Oracle Database - Enterprise Edition - Version and later
Information in this document applies to any platform.


RHEL7/OL7 With DB, DNFS enabled

DNFS is using multiple paths configured in oranfstab. But it never marks the paths as “down” when they get physically disconnected, so the DB hangs[DML/DDL Operations] until the interface becomes available again.

"ifdown eth2" behaves in expected way, transactions continues through other available path.

server: ZFS
local:<<<<<<<<<<<<ETH2, detaching the cable
export: /export/fra/ora mount: /oradata/fra


No errors were seen from any of the logs. Also the same setup work in expected way in RHEL6/OL6


 Test failover scenario to confirm the high availability


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