[erlang-questions] Changing lager console backend log level

[Devangana Tarafdar]

That worked, thank you !

-Devangana

On Sun, Oct 15, 2017 at 12:52 PM, Devangana Tarafdar <devangana@REDACTED>
wrote:

> Thank you for that suggestion,  I will try that.
>
> On Oct 14, 2017 2:15 PM, "Chris Waymire" <chris@REDACTED> wrote:
>
>> Just taking a quick look it does not appear that lager_console_backend
>> supports that argument style in 3.4.0
>>
>> https://github.com/erlang-lager/lager/blob/3.4.0/src/lager_
>> console_backend.erl
>>
>> Try {lager_console_backend, [info]}
>>
>> On Fri, Oct 13, 2017 at 7:09 AM, Devangana Tarafdar <devangana@REDACTED>
>> wrote:
>>
>>> Hello,
>>>
>>> I am having an issue with lager (3.4.0) and am wondering if anyone can
>>> point out if I am doing something wrong:
>>>
>>> Basically I want to change the log level for the console backend from
>>> the app config file.
>>>
>>> I am starting lager with the following inserted in the config file:
>>>
>>>   {lager,[
>>>             {error_logger_whitelist,[yaws_log_file_h]},
>>>             {handlers, [
>>>                {lager_file_backend, [{file,"/tmp/lager_test.info"}
>>> ,{level,debug}]},
>>>
>>>                 {lager_console_backend, [{level,info}]}
>>>            ]},
>>>
>>>             {log_root, "/tmp"}
>>>
>>>           ]},
>>>
>>> Is the above syntax for lager_console_backend  correct ?  Lager seems to
>>> be having some problem with the console backend handler. I see this in the
>>> log file:
>>>
>>>
>>> 2017-10-12 15:34:33.405 [error] <0.60.0>@lager_handler_watcher:123
>>> Lager fatally failed to install handler lager_console_backend into
>>> lager_event, NOT retrying: bad_log_level
>>>
>>> 2017-10-12 15:34:33.405 [debug] <0.62.0>@lager_handler_watcher:119
>>> Lager installed handler error_logger_lager_h into error_logger
>>> 2017-10-12 15:34:33.435 [debug] <0.47.0> Supervisor gr_param_sup started
>>> gr_param:start_link(gr_lager_default_tracer_params) at pid <0.64.0>
>>> 2017-10-12 15:34:33.435 [debug] <0.46.0> Supervisor gr_counter_sup
>>> started gr_counter:start_link(gr_lager_default_tracer_counters) at pid
>>> <0.65.0>
>>> 2017-10-12 15:34:33.439 [debug] <0.48.0> Supervisor gr_manager_sup
>>> started gr_manager:start_link(gr_lager_default_tracer_params_mgr,
>>> gr_lager_default_tracer_params, []) at pid <0.66.0>
>>> 2017-10-12 15:34:33.439 [debug] <0.48.0> Supervisor gr_manager_sup
>>> started gr_manager:start_link(gr_lager_default_tracer_counters_mgr,
>>> gr_lager_default_tracer_counters, [{input,0},{filter,0},{output,
>>> 0},{job_input,0},{job_run,0},{job_time,0},{job_error,0}]) at pid
>>> <0.67.0>
>>> 2017-10-12 15:34:33.633 [info] <0.7.0> Application lager started on node
>>> 'd@REDACTED <d@REDACTED>'
>>> 2017-10-12 15:34:33.888 [debug] <0.56.0>@lager_handler_watcher:119
>>> Lager installed handler lager_backend_throttle into lager_event
>>>
>>> I am starting up my tiny test environment as follows:
>>>
>>> [dtaraf@REDACTED lager_test_rel-1.0.0]$ erl -name d -setcookie x
>>> -config /usr/pkg/otp/rel/lager_test_rel-1.0.0/lager_test_rel.config -pz
>>> /usr/pkg/otp/lib/lager-3.4.0/ebin -pz /usr/pkg/otp/lib/goldrush-0.1.
>>> 9/ebin
>>>
>>> *Erlang/OTP 17* [erts-6.3] [source] [64-bit] [async-threads:10]
>>> [kernel-poll:false]
>>>
>>> Eshell V6.3  (abort with ^G)
>>>
>>> (d@REDACTED)1>  application:start(compiler),ap
>>> plication:start(syntax_tools),application:start(goldrush),ap
>>> plication:start(lager).
>>> ok
>>> (d@REDACTED)2>  lager:status().
>>> Lager status:
>>> File /tmp/lager_test.info (lager_event) at level debug
>>> Console (lager_event) at level {error,bad_module}
>>> Active Traces:
>>> Tracing Reductions:
>>> Tracing Statistics:
>>>   input: 0
>>>  output: 0
>>>  filter: 0
>>> ok
>>>
>>> (d@REDACTED)3> application:which_applications().
>>> [*{lager,"Erlang logging framework","3.4.0*"},
>>>  {goldrush,"Erlang event stream processor","0.1.9"},
>>>  {syntax_tools,"Syntax tools","1.6.17"},
>>>  {compiler,"ERTS  CXC 138 10","5.0.3"},
>>>  {stdlib,"ERTS  CXC 138 10","2.3"},
>>>  {kernel,"ERTS  CXC 138 10","3.1"}]
>>> (d@REDACTED)4>
>>>
>>>
>>> Thanks !
>>>
>>> Devangana
>>>
>>>
>>> _______________________________________________
>>> erlang-questions mailing list
>>> erlang-questions@REDACTED
>>> http://erlang.org/mailman/listinfo/erlang-questions
>>>
>>>
>>
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