Gary Tully created AMQ-4705:
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Summary: Add keep alive support to shared file locker
Key: AMQ-4705
URL: https://issues.apache.org/jira/browse/AMQ-4705
Project: ActiveMQ
Issue Type: Bug
Components: Message Store
Affects Versions: 5.8.0
Reporter: Gary Tully
Assignee: Gary Tully
Fix For: 5.9.0
issue on nsfv4 with a master slave configuration, where both the slave and the
master could obtain a lock.
The following events occurred:
* master locks the file - does no more i/o to it – it's passive wrt the lock
* slave asks every 10 seconds if it can get the lock nfs come back and say no,
someone has it
* nfs dies not nicely
** nfsv4 is stateful - no callback for locks. It has a grace period 30 seconds
to let all clients had locks reclaims locked
* master does not realize it needs to reclaim the lock and continues under the
assumption it has the lock.
* After 30 sec grace period, slave comes in and asks for the lock and it
receives it.
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