'What does the name between [] printed using log interface of org.apache.commons.logging mean in a grails app?
I am trying to debug a problem in a grails application and I see in log:
[http-nio-8180-exec-19] ERROR org.hibernate.internal.SessionImpl - HHH000346: Error during managed flush [Batch update returned unexpected row count from update [0]; actual row count: 0; expected: 1]. I want to know what http-nio-8180-exec-19 stands for and if I can use this thread name to track what user did the operation that lead to the exception.
Can I assume that on thread http-nio-8180-exec-19 I will see all the operations done by just an user and each user that will log into the application will have a different thread associated?
Solution 1:[1]
By default I believe those are the names of threads, though you could put whatever you want there. If you have something like [%15.15t] in your logback.groovy, that is what is causing the thread name to be inserted there.
Sources
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Source: Stack Overflow
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