How to track log messages by thread
From Resin 3.0
(Difference between revisions)
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<log name="" level="finer" path="log/debug.log" | <log name="" level="finer" path="log/debug.log" | ||
| − | format=" ${log.threadId} | + | format="<${log.threadId}> ${log.message}"/> |
Revision as of 22:56, 31 March 2006
- Main article: log
Since Resin is a multithreaded program, logging messages from many requests and threads are serialized in the log files. In some cases, it it useful to keep track of the log messages for a single thread.
The format attribute in the <log> tag lets you customize the log message to include the thread id The format is a string with interpolated EL expressions specifying the format. The value ${log.threadId} adds a thread identifier to the message, while ${log.message} returns the log message.
So an example format might be
<log name="" level="finer" path="log/debug.log"
format="<${log.threadId}> ${log.message}"/>
