Processes receive SIGLOST (lost lock) upon SPARC OVM guest migration for NFSv3 mounts with a NetAPP NFS server
Last updated on AUGUST 18, 2017
Applies to:Solaris Operating System - Version 10 3/05 and later
Information in this document applies to any platform.
Issue is lost locks on Oracle Sparc OVM (LDOM) guest after migration. Processes receive a SIGLOST - which will result in the shutdown (or crash) of applications such as databases.
upon guest resume after the migration, messages similar to this are logged:
<Date stamp> <hostname> klmmod: [ID 424047 kern.notice] NOTICE: lockd: pid 28993 lost lock on server <NFS server name>
Quite often multiple messages like this seen - depending on how many files are locked on the NFS server at the time of the "live migration".
This issue is only present when the locked files reside on a NetApp NFS server, and when NFSv3 (or NFSv2) is used for the mounts.
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