Logging libraries for Erlang/OTP

Question

For logging activity of an Erlang/OTP application, do you simply use a wrapper over disk_log or some other libraries?

A good note on performance when using `disk_log` can be found here (summary: `disk_log` is really fast!): http://timanovsky.wordpress.com/2009/02/04/correct-implementation-of-fast-server-logging-in-erlang/ — Adam Lindberg, Mar 02 '11 at 14:33

lest · Answer 1 · 2010-09-15T21:30:00.907

11

There is standard error logging application SASL http://www.erlang.org/doc/system_principles/error_logging.html.

It can be configured to save logs on disk.

error_logger:info_report example usage:

2> error_logger:info_report([{tag1,data1},a_term,{tag2,data}]).
=INFO REPORT==== 11-Aug-2005::13:55:09 ===
    tag1: data1
    a_term
    tag2: data
ok
3> error_logger:info_report("Something strange happened").
=INFO REPORT==== 11-Aug-2005::13:55:36 ===
Something strange happened
ok

Also there is log4erl when you need different log format. You can look for real usage of it in erlyvideo project.

edited Sep 15 '10 at 21:30

answered Sep 15 '10 at 18:00

lest

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I thought it was only intended for logging errors: processes dying, etc. Not for the human-readable logs. – Alexey Romanov Sep 15 '10 at 18:27
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There is error_logger:info_report function that is useful for outputting your custom data. – lest Sep 15 '10 at 21:28

score 10 · Answer 2 · answered Nov 27 '13 at 19:06

10

There is another option named lager from basho.

answered Nov 27 '13 at 19:06

Majid Azimi

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score 4 · Answer 3 · answered Sep 15 '10 at 13:52

4

Two libraries I've found: http://code.google.com/p/erlslug/ and http://github.com/ahmednawras/log4erl

answered Sep 15 '10 at 13:52

Alexey Romanov

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score 4 · Accepted Answer · answered Sep 15 '10 at 14:23

4

I've also found:

answered Sep 15 '10 at 14:23

Roberto Aloi

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score 3 · Answer 5 · answered Nov 08 '11 at 22:27

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https://github.com/siberian-fast-food/alogger

answered Nov 08 '11 at 22:27

JLarky

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Logging libraries for Erlang/OTP

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