I see that Ted has edited this page and wanted to call out a few things.
It looks like we can now configure any queue & exchange option
via qpid-config, these include:
http://qpid.apache.org/mgmtc.html
Add Queue Options:
--durable Queue is durable
--cluster-durable Queue becomes durable if there is only one functioning
cluster node
--file-count N (8) Number of files in queue's persistence journal
--file-size N (24) File size in pages (64Kib/page)
--max-queue-size N Maximum in-memory queue size as bytes
--max-queue-count N Maximum in-memory queue size as a number of messages
--limit-policy [none | reject | flow-to-disk | ring | ring-strict]
Action taken when queue limit is reached:
none (default) - Use broker's default policy
reject - Reject enqueued messages
flow-to-disk - Page messages to disk
ring - Replace oldest unacquired message
with new
ring-strict - Replace oldest message, reject if
oldest is acquired
--order [fifo | lvq | lvq-no-browse]
Set queue ordering policy:
fifo (default) - First in, first out
lvq - Last Value Queue ordering, allows
queue browsing
lvq-no-browse - Last Value Queue ordering,
browsing clients may lose data
--generate-queue-events N
If set to 1, every enqueue will generate an event that
can be processed by
registered listeners (e.g. for replication). If set to
2, events will be
generated for enqueues and dequeues
Add Exchange Options:
--durable Exchange is durable
--sequence Exchange will insert a 'qpid.msg_sequence' field in the message
header
with a value that increments for each message forwarded.
--ive Exchange will behave as an 'initial-value-exchange', keeping a
reference
to the last message forwarded and enqueuing that message to
newly bound
queues.
in addition the tool can be used to test the current set properties of
a queue or exchange.
$ qpid-config queues
Queue Name Attributes
=================================================================
pub_start
pub_done
sub_ready
sub_done
perftest0 --durable
reply-dhcp-100-18-254.bos.redhat.com.20713 auto-del excl
topic-dhcp-100-18-254.bos.redhat.com.20713 auto-del excl
IT you have not played with it it is worth a whirl...
Something worth adding would be qpid-msg tool, which could
browse messages on a queue, dequeue a message to a file, move
messages from queue to queue and enqueue a message from a file.
That would be handy for testing, and debugging. Maybe even in some
production admin use cases... anyone jump in.
Carl.
