On 09/02/2013 04:37 PM, Jakub Scholz wrote:
Hi,
I wanted to play with the new paged queues feature in 0.24RC3. I believe in
the past it was planned that the old flow-to-disk functionality should be
removed in 0.24 and the new paged queues should be introduced.
However, in the RC3, the qpid-config tool still contains references to
flow-to-disk queues. When I try to create one it seems to work fine, the
queue is created (i.e. the broker doesn't reject it), but it seems to
behave as reject type queue. In the same time the qpid-config doesn't seem
to contain any references to creating the queue with the new paging
mechanism.
Can someone clarify what is the expected situation regarding the old
flow-to-disk functionality and the new paging functionality in 0.24?
Eventually, how can I configure the queues to use the paged queue
functionality?
The flow to disk policy has been removed (since 0.20), its just that the
qpid-config tool has not been updated to reflect that.
As of 0.24 the paged queue implementation is available as an
alternative. There are no 'special' options in qpid-config for that (at
least not yet), but you can use the --argument option to create one. E.g.
qpid-config add queue my-paged-q --argument qpid.paging=True
You can also use the --argument option to set qpid.max_pages_loaded
(which controls how many pages can be in memory at any time) and
qpid.page_factor (which controls the page size as a multiple of the
platform default page size).
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