Building Python Real-Time Applications with Storm by Bhatnagar Kartik & Hart Barry

Author:Bhatnagar, Kartik & Hart, Barry [Bhatnagar, Kartik]
Language: eng
Format: azw3
Publisher: Packt Publishing
Published: 2015-12-02T05:00:00+00:00

This cuts the startup time from 30 seconds down to about 10 seconds.

Enabling and using logging

Like many languages, Python has a logging framework that provides a way to capture information on what is happening inside a running application. This section describes how to use logging with Storm:

In the same directory as that of the word count topology, create a new file, called logconfig.ini:[loggers] keys=root,storm [handlers] keys=hand01 [formatters] keys=form01 [logger_root] level=INFO handlers=hand01 [logger_storm] qualname=storm level=DEBUG handlers=hand01 propagate=0 [handler_hand01] class=FileHandler level=DEBUG formatter=form01 args=(os.getenv('PETREL_LOG_PATH') or 'petrel.log', 'a') [formatter_form01] format=[%(asctime)s][%(name)s][%(levelname)s]%(message)s datefmt= class=logging.Formatter

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