Limit message size in logback

Question

I have a play-application that uses logback. Some of the messages logged by one of the libraries are very large and fills my log with unnecessary statements.

What I want to do is log all messages but limit them on a certain size (e.q. 300 characters). Is there any way to do this?

[this](http://stackoverflow.com/questions/8383867/text-length-limit-in-logback-logging) might help. — Youssef NAIT, Mar 01 '16 at 13:22
I found that post, but the solution in this example is to use a cxf class and i use the Play Framework. I found this post: http://stackoverflow.com/questions/32704470/can-a-logback-message-field-be-truncated-trimmed-to-n-characters So I will try that as soon as possible to if it is possible to truncate the messages also. — Morten, Mar 01 '16 at 14:10

score 21 · Answer 1 · edited Jun 25 '20 at 15:14

21

The format modifiers in the link did the trick. To truncate the message you can do it using %.-n where n is the maximum length:

    <encoder>
        <pattern>%d{dd-MM-yyyy HH:mm:ss.SSS} %-5level %logger{36} - %.-512msg%n</pattern>
    </encoder>

This modifier will truncate messages larger than 512 characters and put no padding on the left.

edited Jun 25 '20 at 15:14

Aaron Digulla

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answered Mar 01 '16 at 21:23

Morten

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Limit message size in logback

1 Answers1