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Hannes Magnusson:
Query logging and profiling in MongoDB
September 18, 2013 @ 10:25:49

in a previous post Hannes Magnusson introduced the new stream handling notification feature in the MongoDB PHP extension. In his most recent post he elaborates on a subject mentioned in the previous post - query logging and profiling.

In my previous blog post I mentioned that the 1.5.0 release of the MongoDB driver for PHP has improved notification support using the PHP Notification API, and showed off a fairly useless (but fun) progress bar. Now its time for a little bit more practical examples using this system: Query logging and profiling.

He talks about some of the features in his pull request, including the new constants added to help make working with the logging on streams easier. He includes some sample code that handles the logging via an "update" callback function, parsing the log message type and save the related data to a class variable. An instance of this class is then assigned to the "notification" stream and passed in as an additional option when creating the MongoClient connection. He includes an example of querying a basic collection and how to extract the request information from the logging object instance.

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Link: http://bjori.blogspot.com/2013/09/query-logging-and-profiling-in-mongodb.html

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