[erlang-questions] Appearance of carriage return in a erlang.log on UNIX

Jay Doane <>
Mon Mar 11 08:40:15 CET 2013


I believe the erlang.log.N files come from
http://www.erlang.org/doc/man/run_erl.html, which is probably being invoked
from the script rebar generated in rel/files.

There are several environment variables you can use to control the output,
but I don't know how to get rid of those annoying carriage returns.  Sure
wish I did...

Jay


On Sun, Mar 10, 2013 at 12:48 PM, Valentin Kuznetsov <>wrote:

> Hmm,
> the application does use error_logger and the erlang.log.1 file contains
> proper lines from the logger, e.g.
>
> =INFO REPORT==== 9-Mar-2013::20:55:05 ===^M
> <0.818.0> Listening on 10190.^M
> Eshell V5.9.3  (abort with ^G)^M
> ()1> ^M
> =INFO REPORT==== 9-Mar-2013::20:55:31 ===^M
> <0.838.0> Client {127,0,0,1} connected.^M
>
> The release log area has the following content:
>
> erlang.log.1  run_erl.log  sasl  sasl-error.log
>
> The sasl-error.log contains proper content too, e.g.
>
> =SUPERVISOR REPORT==== 10-Mar-2013::18:29:44 ===
>      Supervisor: {local,ssl_connection_sup}
>      Context:    child_terminated
>      Reason:     ekeyfile
>      Offender:   [{pid,<0.1016.0>},
>                   {name,undefined},
>  {mfargs,{ssl_connection,start_link,undefined}},
>                   {restart_type,temporary},
>                   {shutdown,4000},                  {child_type,worker}]
>
> but it does not have '\r' symbols.
>
> The erlang.log.1 is not yet rotated since I only perform a few actions
> with my application.
>
> On Mar 10, 2013, at ,Mar 10, 3:29 PM, Antoine Koener wrote:
>
> Erlang doesn't have a clue about your .1 file.
> See more about your log rotation program.
> Also your log file doesn't look like a sasl or error logger file...
>
>
>
> On Sunday, March 10, 2013, Valentin Kuznetsov wrote:
>
>> Hi,
>> I built OTP application using rebar build tool and when I'm running on
>> UNIX systems (both OSX and Linux) I see that created erlang.log.1 file has
>> dos '\r' carriage return symbols in every line. I look-up on a web and did
>> not find any reference about such behavior. I'll appreciate any suggestions
>> why this happens (I don't think it's related to my application per-se and
>> rather feel that it's somehow introduced by rebar, but I'm not sure). The
>> carriage return symbols appears right after logging started message and
>> follow up ever line after that. Here is an example of the head of my log.
>>
>> =====
>> ===== LOGGING STARTED Sat Mar  9 20:55:02 EST 2013
>> =====
>> Exec:
>> /Users/vk/Work/Languages/Erlang/urlfetch/rel/urlfetchd/erts-5.9.3/bin/erlexec
>> -boot
>> /Users/vk/Work/Languages/Erlang/urlfetch/rel/urlfetchd/releases/1/urlfetchd
>> -mode embedded -config
>> /Users/vk/Work/Languages/Erlang/urlfetch/rel/urlfetchd/etc/app.config
>> -args_file
>> /Users/vk/Work/Languages/Erlang/urlfetch/rel/urlfetchd/etc/vm.args --
>> console^M
>> Root: /Users/vk/Work/Languages/Erlang/urlfetch/rel/urlfetchd^M
>> Erlang R15B03 (erts-5.9.3) [source] [64-bit] [smp:2:2] [async-threads:5]
>> [hipe] [kernel-poll:true]^M
>> ^M
>> ^M
>>
>> Thanks,
>> Valentin.
>> _______________________________________________
>> erlang-questions mailing list
>> 
>> http://erlang.org/mailman/listinfo/erlang-questions
>>
>
>
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