[rabbitmq-discuss] Resource alarms in 3.1 seems to block operations other than basic.publish
matthias at rabbitmq.com
Mon May 13 19:04:53 BST 2013
On 13/05/13 18:53, Michael Klishin wrote:
> I don't set the watermark really low. Instead, I publish a lot of 2-16
> MB messages until the regular 40% watermark is hit
> The entire OS responsiveness is terrible.
Is the O/S paging perhaps? If this is your regular "desktop" machine,
plus you are running rabbit and the clients on it, then I'd image by the
time rabbit hits the regular 40% watermark the O/S may well have started
paging quite heavily. And at that point *everything* gets a lot slower,
and large processes, like rabbit at that time, will suffer particularly
The 40% is a reasonable default for machines that don't run much besides
rabbit and/or on which rabbit isn't put under heavy load. If those
conditions aren't met then lowering the threshold is advisable.
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