[rabbitmq-discuss] High cpu usage on CentOS boxes

Mon Nov 25 17:28:38 GMT 2013

I'm afraid there isn't a good way to see which parts of the broker are 
busy at the moment (we hope to add something along these lines in a 
future release).

I'm suspicious of the idea that it's distro-related though. Is the 
CentOS server really performing the same workload as the Ubuntu server?

To get to the bottom of this you'd have to gradually take bits away 
until you see the CPU usage drop - stop connections, disable plugins and 
so on.

Cheers, Simon

On 25/11/2013 16:53, shridharan muthu wrote:
> Hello There,
>
>     Reg my previous message, is there anyway to dig into the high cpu
> usage issue? With similar configs in Ubuntu & Cent OS, Cent OS takes lot
> more cpu for beam.smp process. I switched log level to "info" but
> noticed nothing unusual.
>
> Any help would be appreciated.
>
> Thanks,
> Shri
>
>
> On Fri, Nov 22, 2013 at 3:56 PM, shridharan muthu
> <shridharan.m at gmail.com <mailto:shridharan.m at gmail.com>> wrote:
>
>     Hi There,
>          I am experiencing high cpu usage (above 400%) on Cent OS rabbit
>     mq cluster (with 2 nodes). We have a similar setup in Ubuntu and cpu
>     usage seems fine. Pls fine the report, status and top below.
>
>     OS: /CentOS release 6.4/
>
>     Report:
>     /{pid,2148},/
>     / {running_applications,/
>     /     [{rabbitmq_management,"RabbitMQ Management Console","3.0.2"},/
>     /      {rabbitmq_management_agent,"RabbitMQ Management Agent","3.0.2"},/
>     /      {rabbit,"RabbitMQ","3.0.2"},/
>     /      {os_mon,"CPO  CXC 138 46","2.2.7"},/
>     /      {rabbitmq_mochiweb,"RabbitMQ Mochiweb Embedding","3.0.2"},/
>     /      {webmachine,"webmachine","1.9.1-rmq3.0.2-git52e62bc"},/
>     /      {mochiweb,"MochiMedia Web Server","2.3.1-rmq3.0.2-gitd541e9a"},/
>     /      {xmerl,"XML parser","1.2.10"},/
>     /      {inets,"INETS  CXC 138 49","5.7.1"},/
>     /      {mnesia,"MNESIA  CXC 138 12","4.5"},/
>     /      {amqp_client,"RabbitMQ AMQP Client","3.0.2"},/
>     /      {sasl,"SASL  CXC 138 11","2.1.10"},/
>     /      {stdlib,"ERTS  CXC 138 10","1.17.5"},/
>     /      {kernel,"ERTS  CXC 138 10","2.14.5"}]},/
>     / {os,{unix,linux}},/
>     / {erlang_version,/
>     /     "Erlang R14B04 (erts-5.8.5) [source] [64-bit] [smp:12:12]
>     [rq:12] [async-threads:30] [kernel-poll:true]\n"},/
>     / {memory,/
>     /     [{total,285898072},/
>     /      {connection_procs,16592856},/
>     /      {queue_procs,1064888},/
>     /      {plugins,269872},/
>     /      {other_proc,13173224},/
>     /      {mnesia,100632},/
>     /      {mgmt_db,2167672},/
>     /      {msg_index,35352},/
>     /      {other_ets,72058416},/
>     /      {binary,7326576},/
>     /      {code,17434264},/
>     /      {atom,3356065},/
>     /      {other_system,152318255}]},/
>     / {vm_memory_high_watermark,0.4},/
>     / {vm_memory_limit,4991811584},/
>     / {disk_free_limit,1000000000},/
>     / {disk_free,17927184384},/
>     / {file_descriptors,/
>     /     [{total_limit,199900},/
>     /      {total_used,314},/
>     /      {sockets_limit,179908},/
>     /      {sockets_used,312}]},/
>     / {processes,[{limit,1048576},{used,2703}]},/
>     / {run_queue,0},/
>     / {uptime,3207797}]/
>
>      From Top:
>     /   2249 rabbitmq  20   0 2989m 319m 2540 S 371.5  2.7  25109:43
>     beam.smp /
>
>
>       Pls advise me how to proceed further.
>
>     Thanks,
>     Shri
>
>
>
>
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