Comments on: Hibernate and Logging http://www.basilv.com/psd/blog/2008/hibernate-and-logging Wed, 16 May 2012 04:03:57 +0000 hourly 1 http://wordpress.org/?v=3.3 By: Basil Vandegriend http://www.basilv.com/psd/blog/2008/hibernate-and-logging/comment-page-1#comment-95195 Basil Vandegriend Thu, 30 Jul 2009 04:22:04 +0000 http://www.basilv.com/psd/blog/2008/hibernate-and-logging#comment-95195 @Bill, the last portion of each entry represents the elapsed duration (in milliseconds) since the application started (more accurately, I believe, when Log4J was initialized.) I use this both as an uptime statistic and as a way to compare elapsed time between two log entries. This does NOT represent query duration, and I'm not aware of an easy way to log this. One option that comes to mind is to use aspects to weave in before/after method advice on either Hibernate query methods directly or on methods in your Data Access Objects (DAOs) to measure and log the performance. @Bill, the last portion of each entry represents the elapsed duration (in milliseconds) since the application started (more accurately, I believe, when Log4J was initialized.) I use this both as an uptime statistic and as a way to compare elapsed time between two log entries.

This does NOT represent query duration, and I’m not aware of an easy way to log this. One option that comes to mind is to use aspects to weave in before/after method advice on either Hibernate query methods directly or on methods in your Data Access Objects (DAOs) to measure and log the performance.

]]> By: Bill http://www.basilv.com/psd/blog/2008/hibernate-and-logging/comment-page-1#comment-95169 Bill Wed, 29 Jul 2009 15:26:38 +0000 http://www.basilv.com/psd/blog/2008/hibernate-and-logging#comment-95169 In your sample log snippet, each entry ends with "[44513 ms]". What does that represent? If that is how long the query took to run (although I'd hope it didn't take 44 seconds), or you know how to log query duration, please post. In your sample log snippet, each entry ends with “[44513 ms]“. What does that represent? If that is how long the query took to run (although I’d hope it didn’t take 44 seconds), or you know how to log query duration, please post.

]]> By: Paul G http://www.basilv.com/psd/blog/2008/hibernate-and-logging/comment-page-1#comment-89783 Paul G Sat, 02 May 2009 06:55:29 +0000 http://www.basilv.com/psd/blog/2008/hibernate-and-logging#comment-89783 Jcl "smart" classloader scanning cause no end of problems in servers. I would really suggest looking at sl4j which may help with everyones logging in server issues. Jcl “smart” classloader scanning cause no end of problems in servers. I would really suggest looking at sl4j which may help with everyones logging in server issues.

]]> By: Paul G http://www.basilv.com/psd/blog/2008/hibernate-and-logging/comment-page-1#comment-89782 Paul G Sat, 02 May 2009 06:52:24 +0000 http://www.basilv.com/psd/blog/2008/hibernate-and-logging#comment-89782 If you use sl4j you get none of the websphere problems. Sl4j provides a bridge so it will work with jcl and then you can use log4j or the new replacement logback. If you use sl4j you get none of the websphere problems. Sl4j provides a bridge so it will work with jcl and then you can use log4j or the new replacement logback.

]]> By: Sasha http://www.basilv.com/psd/blog/2008/hibernate-and-logging/comment-page-1#comment-84128 Sasha Thu, 05 Mar 2009 04:29:24 +0000 http://www.basilv.com/psd/blog/2008/hibernate-and-logging#comment-84128 Thank you Basil for a good tip. I've got a slightly different problem where Hibernate 3.2.6.ga does not log "debug" messages when running in Tomcat 5.5 (which in its turn runs in JBoss 4.0.3). I've tried creating commons-logging.properties but it did not log debug messages either. However, when I run the same code in a standalone environment, I've got all debug messages coming from hibernate. All suggestions would be greatly appreciated. Thank you Basil for a good tip.

I’ve got a slightly different problem where Hibernate 3.2.6.ga does not log “debug” messages when running in Tomcat 5.5 (which in its turn runs in JBoss 4.0.3). I’ve tried creating commons-logging.properties but it did not log debug messages either.

However, when I run the same code in a standalone environment, I’ve got all debug messages coming from hibernate.

All suggestions would be greatly appreciated.

]]> By: Basil Vandegriend http://www.basilv.com/psd/blog/2008/hibernate-and-logging/comment-page-1#comment-82568 Basil Vandegriend Mon, 23 Feb 2009 13:44:44 +0000 http://www.basilv.com/psd/blog/2008/hibernate-and-logging#comment-82568 Thanks Peter! I made the fix. Thanks Peter! I made the fix.

]]> By: Peter Kelley http://www.basilv.com/psd/blog/2008/hibernate-and-logging/comment-page-1#comment-82545 Peter Kelley Mon, 23 Feb 2009 10:44:22 +0000 http://www.basilv.com/psd/blog/2008/hibernate-and-logging#comment-82545 I think that that log implementation class should be org.apache.commons.logging.impl.Log4JLogger (upper case J) I think that that log implementation class should be org.apache.commons.logging.impl.Log4JLogger (upper case J)

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