[rabbitmq-discuss] flow control threshold

[Simon MacMullen]

I don't think it's the use of an older library. There is a bug fixed in 
the latest 3.0.3 release which you might be seeing - I suggest you give 
it a try.

Cheers, Simon

On 05/03/13 15:32, Gilles Danycan wrote:
> Hi Simon,
>
> 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 ;)
>
> Cheers,
>
>      *Gilles Danycan*
>
>
> ------------------------------------------------------------------------
> *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
> too much.
>
> If you have seen it block publishing altogether that would be a serious
> bug. Can you post your script somewhere?
>
> Cheers, Simon
>
> 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
>  > 527
>  > _1048576 available
>  >
>  > 330
>  > _943626 available
>  >
>  > 2937
>  > _1048576 available
>  >
>  > 2.7GB
>  > _25.2GB high watermark
>  >
>  > 1.7TB
>  > _953.7MB low watermark
>  >         2h 32m         Disc Stats *
>  >
>  >
>  >
>  > Thanks for your help,
>  >
>  > Regards,
>  >
>  >      *Gilles*
>  >
>  >
>  >
>  >
>  >
>  > _______________________________________________
>  > rabbitmq-discuss mailing list
>  > rabbitmq-discuss at lists.rabbitmq.com
>  > https://lists.rabbitmq.com/cgi-bin/mailman/listinfo/rabbitmq-discuss
>  >
>
>
> --
> Simon MacMullen
> RabbitMQ, VMware


-- 
Simon MacMullen
RabbitMQ, VMware