[rabbitmq-discuss] flow control threshold
gdanycan at slip-software.com
Tue Mar 5 15:32:19 GMT 2013
sorry to answering late,
yes, it's a very strange thing, i have to admit that i'm lost..
it`s happen only with this queue... a network issue could be the source of the problem? may be due to the high volume of data ?
the problem occur also without having the connection in state: flow. (the pid of the script is in state running) and we have nothing in logs..
the last time (friday), i restarted the rabbitmq server (i restarted the server because its was not possible to stop the rabbitmq process..) and it back working.
i use an older library for php: amqp-0.2.2 , may be something in relation with?
about the script, i have to clean it before ;)
From: "Simon MacMullen" <simon at rabbitmq.com>
To: "Discussions about RabbitMQ" <rabbitmq-discuss at lists.rabbitmq.com>
Cc: "Gilles Danycan" <gdanycan at slip-software.com>
Sent: Thursday, February 7, 2013 4:17:07 PM
Subject: Re: [rabbitmq-discuss] flow control threshold
The flow control should only be restricting the rate at which you can
publish into a queue to the rate at which the queue can accept messages
- in other words it should only ever slow publishing down, and not by
If you have seen it block publishing altogether that would be a serious
bug. Can you post your script somewhere?
On 07/02/13 12:35, Gilles Danycan wrote:
> Hi All,
> I have a serious problem to consume and requeue messages on a specific
> queue. i think the flow control is blocking connection...
> I'm using RabbitMQ 3.0.2, Erlang R15B03 on a debian server : 64go ram ,
> 8 cpu.
> i have a script (named consumer) consuming and requeue messages on a
> queue named "mainQueue" (actually 900 000 messages into this queue) and
> another one publishing messages on the same queue (arround 200mess/s).
> each message is arroung 15kbytes and deliverymode =2 and durable.
> usually the script consumer is able to get and requeue messages at
> 1000mess/s, sometimes the same script is in hold, it doesn't consumer
> messages.., i see in connections that the connection is in state : flow
> i found documentation about flow control but i would like more advices
> about how to determine the flow control specificaly with my
> configuration and how to change the threshold.
> i send you below more details about the rabbitmq server status..
> Connections: *328*
> Channels: *328*
> Exchanges: *120*
> Queues: *111*
> Consumers: *0
> File descriptors (?) Socket descriptors (?) Erlang processes Memory
> Disk space Uptime Type
> _1048576 available
> _943626 available
> _1048576 available
> _25.2GB high watermark
> _953.7MB low watermark
> 2h 32m Disc Stats *
> Thanks for your help,
> rabbitmq-discuss mailing list
> rabbitmq-discuss at lists.rabbitmq.com
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