Erlang client error logging

[Tõnis Kasekamp]

When the RabbitMQ server is unavailable, the erlang-client logs that error in the following format. The supervisor report includes the RabbitMQ username and password, in this case "guest". How to remove them from the error log? 

=CRASH REPORT==== 14-Jul-2017::08:41:42 ===
  crasher:
    initial call: amqp_gen_connection:init/1
    pid: <0.1945.0>
    registered_name: []
    exception exit: socket_closed_unexpectedly
      in function  gen_server:terminate/7 (gen_server.erl, line 812)
    ancestors: [<0.1934.0>,amqp_sup,<0.1822.0>]
    messages: []
    links: [<0.1934.0>,#Port<0.3834>]
    dictionary: [{process_name,
                      {amqp_gen_connection,
                          <<"client 172.17.0.8:60577 -> 10.0.2.2:5672">>}}]
    trap_exit: true
    status: running
    heap_size: 1598
    stack_size: 27
    reductions: 1708
  neighbours:


=SUPERVISOR REPORT==== 14-Jul-2017::08:41:42 ===
     Supervisor: {<0.1934.0>,amqp_connection_sup}
     Context:    child_terminated
     Reason:     socket_closed_unexpectedly
     Offender:   [{pid,<0.1945.0>},
                  {name,connection},
                  {mfargs,
                      {amqp_gen_connection,start_link,
                          [<0.1937.0>,
                           {amqp_params_network,<<"guest">>,<<"guest">>,
                               <<"/">>,"10.0.2.2",5672,0,0,0,5000,none,
                               [#Fun<amqp_auth_mechanisms.plain.3>,
                                #Fun<amqp_auth_mechanisms.amqplain.3>],
                               [],[]}]}},
                  {restart_type,intrinsic},
                  {shutdown,brutal_kill},
                  {child_type,worker}]


=SUPERVISOR REPORT==== 14-Jul-2017::08:41:42 ===
     Supervisor: {<0.1934.0>,amqp_connection_sup}
     Context:    shutdown
     Reason:     reached_max_restart_intensity
     Offender:   [{pid,<0.1945.0>},
                  {name,connection},
                  {mfargs,
                      {amqp_gen_connection,start_link,
                          [<0.1937.0>,
                           {amqp_params_network,<<"guest">>,<<"guest">>,
                               <<"/">>,"10.0.2.2",5672,0,0,0,5000,none,
                               [#Fun<amqp_auth_mechanisms.plain.3>,
                                #Fun<amqp_auth_mechanisms.amqplain.3>],
                               [],[]}]}},
                  {restart_type,intrinsic},
                  {shutdown,brutal_kill},
                  {child_type,worker}]

[Michael Klishin]

This is not something that RabbitMQ Erlang client logs but rather parts of Erlang/OTP.

I can think of 2 ways:

 * Disable all crash report logging (I don't think it's a good idea)

 * Use x509 certificates for authentication (see https://github.com/rabbitmq/rabbitmq-auth-mechanism-ssl)

All other options include client library modifications (that would avoid crashes for

certain types of issues).

 

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MK

Staff Software Engineer, Pivotal/RabbitMQ

[Tõnis Kasekamp]

Thank you.

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