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a2857b1504
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Ronnie Sahlberg a2857b1504 We only queued up to 1000 packets per queue before we start dropping 
packets, to avoid the queue to grow excessively if smbd has blocked.

This could cause traverse packets to become discarded in case the main
smbd daemon does a traverse of a database while there is a recovery
(sending a erconfigured message to smbd, causing an avalanche of unlock
messages to be sent across the cluster.)

This avalance of messages could cause also the tranversal message to be
discarded  causing the main smbd process to hang indefinitely waiting
for the traversal message that will never arrive.

Bump the maximum queue length before starting to discard messages from
1000 to 1000000 and at the same time rework the queueing slightly so we
can append messages cheaply to the queue instead of walking the list
from head to tail every time.

(This used to be ctdb commit 59ba5d7f80e0465e5076533374fb9ee862ed7bb6)
2010-02-04 09:54:06 +11:00
ctdb We only queued up to 1000 packets per queue before we start dropping 2010-02-04 09:54:06 +11:00