[rabbitmq-discuss] Reading a message from sys.log

Wed Oct 23 11:31:38 BST 2013

Have you by any chance deleted the exchange amq.rabbitmq.trace?

Admittedly that's not exactly a clear error message.

Cheers, Simon

On 23/10/13 07:58, Tomasz Szymkowiak wrote:
> I forgot to mention, that sys.log is durable queue which has two
> bindings with amq.rabbitmq.log exchange: one with binding key error and
> the other one with warning.
> Regards,
> T.
>
> W dniu wtorek, 22 października 2013 17:12:37 UTC+2 użytkownik Tomasz
> Szymkowiak napisał:
>
>     Hi,
>     when i'm trying to get a message from sys.log queue via
>     rabbitmq_management plugin i'm getting:
>
>
>     Got response code 500 with body
>     Internal Server Error
>
>     The server encountered an error while processing this request:
>     {error,
>       {exit,
>        {{{badmatch,
>           {badrpc,
>            {'EXIT',
>             {{badmatch,
>               {error,
>                {'EXIT',
>                 {{badmatch,
>                   {error,
>                    {{{badmatch,{error,not_found}},
>                      [{rabbit_trace,init,1},
>                       {rabbit_channel,init,1},
>                       {gen_server2,init_it,6},
>                       {proc_lib,init_p_do_apply,3}]},
>                     {child,undefined,channel,
>                      {rabbit_channel,start_link,
>                       [1,<0.12001.10>,<0.12001.10>,<0.11994.10>,
>                        <<"<'rabbit at host'.2.11994.10>">>,
>                        rabbit_framing_amqp_0_9_1,
>                        {user,<<"user">>,
>                         [administrator],
>                         rabbit_auth_backend_internal,
>                         {internal_user,<<"user">>,
>
>     <<103,27,123,114,70,159,120,205,173,29,114,226,83,153,225,
>                            33,146,220,255,20>>,
>                          [administrator]}},
>                        <<"/">>,
>                        [{<<"publisher_confirms">>,bool,true},
>                         {<<"exchange_exchange_bindings">>,bool,true},
>                         {<<"basic.nack">>,bool,true},
>                         {<<"consumer_cancel_notify">>,bool,true}],
>                        <0.11998.10>,<0.12003.10>]},
>                      intrinsic,4294967295,worker,
>                      [rabbit_channel]}}}},
>                  [{rabbit_channel_sup,start_link,1},
>                   {supervisor2,do_start_child_i,3},
>                   {supervisor2,handle_call,3},
>                   {gen_server,handle_msg,5},
>                   {proc_lib,init_p_do_apply,3}]}}}},
>              [{rabbit_direct,start_channel,9},
>               {rpc,local_call,3},
>               {amqp_channel_sup,'-start_writer_fun/4-fun-0-',7},
>               {amqp_channel,start_writer,1},
>               {amqp_channel,do_rpc,1},
>               {amqp_channel,handle_call,3},
>               {gen_server,handle_msg,5},
>               {proc_lib,init_p_do_apply,3}]}}}},
>          [{amqp_channel_sup,'-start_writer_fun/4-fun-0-',7},
>           {amqp_channel,start_writer,1},
>           {amqp_channel,do_rpc,1},
>           {amqp_channel,handle_call,3},
>           {gen_server,handle_msg,5},
>           {proc_lib,init_p_do_apply,3}]},
>         {gen_server,call,[<0.12001.10>,open,infinity]}},
>        [{gen_server,call,3},
>         {amqp_gen_connection,open_channel,3},
>         {rabbit_mgmt_util,with_channel,5},
>         {rabbit_mgmt_util,with_decode,5},
>         {rabbit_mgmt_wm_queue_get,process_post,2},
>         {webmachine_resource,resource_call,3},
>         {webmachine_resource,do,3},
>         {webmachine_decision_core,resource_call,1}]}}
>
>
>     it happens only, when the tracing is on (vhost "/")
>     when i turn it off - the message is read properly
>     what am i doing wrong ?
>
>     rabbitmqctl status:
>
>     Status of node 'rabbit at host' ...
>     [{pid,3510},
>       {running_applications,
>           [{rabbitmq_management_visualiser,"RabbitMQ Visualiser","3.1.5"},
>            {rabbitmq_tracing,"RabbitMQ message logging / tracing","3.1.5"},
>            {rabbitmq_management,"RabbitMQ Management Console","3.1.5"},
>            {rabbitmq_management_agent,"RabbitMQ Management Agent","3.1.5"},
>            {rabbit,"RabbitMQ","3.1.5"},
>            {os_mon,"CPO  CXC 138 46","2.2.7"},
>            {rabbitmq_web_dispatch,"RabbitMQ Web Dispatcher","3.1.5"},
>            {webmachine,"webmachine","1.10.3-rmq3.1.5-gite9359c7"},
>            {mochiweb,"MochiMedia Web Server","2.7.0-rmq3.1.5-git680dba8"},
>            {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","3.1.5"},
>            {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:8:8] [rq:8]
>     [async-threads:30] [kernel-poll:true]\n"},
>       {memory,
>           [{total,50383256},
>            {connection_procs,605416},
>            {queue_procs,560056},
>            {plugins,702048},
>            {other_proc,11365416},
>            {mnesia,229240},
>            {mgmt_db,541664},
>            {msg_index,99296},
>            {other_ets,1374104},
>            {binary,13453984},
>            {code,17552765},
>            {atom,1601817},
>            {other_system,2297450}]},
>       {vm_memory_high_watermark,0.4},
>       {vm_memory_limit,3150484275},
>       {disk_free_limit,1000000000},
>       {disk_free,11425714176},
>       {file_descriptors,
>
>       [{total_limit,924},{total_used,25},{sockets_limit,829},{sockets_used,9}]},
>       {processes,[{limit,1048576},{used,351}]},
>       {run_queue,0},
>       {uptime,1052426}]
>
>
>     Regards,
>     T.
>
>
>
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-- 
Simon MacMullen
RabbitMQ, Pivotal