CODEWITHSUNDEEP
google-app-engineloggingappserver
systempuntoout
systempuntoout

Reputation: 74134

How to change the logging level of dev_appserver

Do you know how to change the logging level of Google App Engine dev_appserver?
I would like to set it to ERROR removing messages like:

INFO     2011-10-18 17:43:00,806 dev_appserver_multiprocess.py:637] 
         Running application foo on port 8106: http://localhost:8106
INFO     2011-10-18 17:47:12,927 dev_appserver.py:4247] 
         "GET /images/sprite.png HTTP/1.1" 200 -

Upvotes: 10

Views: 5646

Answers (5)

Diederik
Diederik

Reputation: 6498

There are two slightly different arguments which let you control the log level, log_level and dev_appserver_log_level.

log_level {debug,info,warning,critical,error}
dev_appserver.py --log_level=debug

The log level below which logging messages generated by application code will not be displayed on the console (default: info)

dev_appserver_log_level {debug,info,warning,critical,error}
dev_appserver.py --dev_appserver_log_level=debug

The log level below which logging messages generated by the development server will not be displayed on the console (default: info)

Upvotes: 20

minou
minou

Reputation: 16563

The accepted answer does not work for me, but the comments to the accepted answer do give a fix. This is a community wiki answer to help avoid confusion.

dev_appserver.py --dev_appserver_log_level=debug sets the log output to debug level.

Upvotes: 3

Ricky Jones
Ricky Jones

Reputation: 134

In the Google App Engine Launcher select Edit->Application Settings, and add --debug into Extra Command Line Flags.

Upvotes: 0

Moishe Lettvin
Moishe Lettvin

Reputation: 8471

Looking at the code, there isn't a way to modify the log level from the command line. Your solution is fine (at least until the next update, as you said).

You could pipe it through a GREP if you want, eg.:

~/google_appengine/dev_appserver.py . 2>&1 |egrep "^(WARNING|ERROR|CRITICAL)"

Not ideal but functional.

Upvotes: 3

systempuntoout
systempuntoout

Reputation: 74134

I have directly modified the source of dev_appserver_main.py in:

ARG_LOG_LEVEL: logging.ERROR

On the next update I will lose this change but it is not a problem; I really wanted this because log console tend to freeze on huge imports from program (I'm on OSX).

Upvotes: 0

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