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Sorry I forgot to reply to the list. Yes, the problem was that on
the production server, the console backend was not started.<br>
<br>
Regards,<br>
Martin<br>
<br>
<div class="moz-cite-prefix">On 2/14/2016 10:19 PM, Mark Allen
wrote:<br>
</div>
<blockquote
cite="mid:463923366.4135845.1455481195079.JavaMail.yahoo@mail.yahoo.com"
type="cite">
<div style="color:#000; background-color:#fff;
font-family:verdana, helvetica, sans-serif;font-size:13px">
<div id="yui_3_16_0_1_1455476110505_50036"><span>Hi.</span></div>
<div id="yui_3_16_0_1_1455476110505_50223"><span><br>
</span></div>
<div dir="ltr" id="yui_3_16_0_1_1455476110505_50037"><span
id="yui_3_16_0_1_1455476110505_50205">The OTP docs for
gen_event:call state:</span></div>
<blockquote style="margin: 0 0 0 40px; border: none; padding:
0px;" id="yui_3_16_0_1_1455476110505_49970">
<div dir="ltr" id="yui_3_16_0_1_1455476110505_49876"><span
style="font-family: Verdana, Arial, Helvetica,
sans-serif;" id="yui_3_16_0_1_1455476110505_49871"
class="">If the specified event handler is not installed,
the function returns </span><span class=""
style="font-family: Courier, monospace;"
id="yui_3_16_0_1_1455476110505_49873">{error,bad_module}</span><span
style="font-family: Verdana, Arial, Helvetica,
sans-serif;" id="yui_3_16_0_1_1455476110505_49875"
class="">.</span></div>
<div dir="ltr" id="yui_3_16_0_1_1455476110505_49876"><br>
</div>
</blockquote>
<div dir="ltr" id="yui_3_16_0_1_1455476110505_49817">I see that
the application is loaded from the screen shot; did you start
the lager application and a console backend before trying to
set a new log level? "Starting" the application registers
lager_console_backend as a gen_event handler. You may also
want to use lager:trace_console/1</div>
<div dir="ltr" id="yui_3_16_0_1_1455476110505_49817"><br>
</div>
<div dir="ltr" id="yui_3_16_0_1_1455476110505_49817">Thanks.</div>
<div dir="ltr" id="yui_3_16_0_1_1455476110505_49817"><br>
</div>
<div dir="ltr" id="yui_3_16_0_1_1455476110505_49817">Mark</div>
<div dir="ltr" id="yui_3_16_0_1_1455476110505_49817"><br>
</div>
<div dir="ltr" id="yui_3_16_0_1_1455476110505_49817"><br>
</div>
<div class="qtdSeparateBR"><br>
<br>
</div>
<div class="yahoo_quoted" style="display: block;">
<div style="font-family: verdana, helvetica, sans-serif;
font-size: 13px;">
<div style="font-family: HelveticaNeue, Helvetica Neue,
Helvetica, Arial, Lucida Grande, sans-serif; font-size:
16px;">
<div dir="ltr"><font size="2" face="Arial"> On Sunday,
February 7, 2016 11:06 AM, Martin Koroudjiev
<a class="moz-txt-link-rfc2396E" href="mailto:mrtndimitrov@gmail.com"><mrtndimitrov@gmail.com></a> wrote:<br>
</font></div>
<br>
<br>
<div class="y_msg_container">
<div id="yiv7091349785">
<div> Hello,<br>
<br>
I have to trace a bug on a production server running
lager. I connected to the node and tried to change
the log level to debug but got a strange error -
bad_module.<br>
I've checked and lager is running. Here is a
screenshot of the commands:<br>
<br>
<img moz-do-not-send="true" alt=""><br>
<br>
Thanks in advance,<br>
Martin<br>
</div>
</div>
<br>
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<br>
</div>
</div>
</div>
</div>
</div>
</blockquote>
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