To be honest Matt I found the best way to understand these things is to set some breakpoints and step through it in the debugger. If you find the problem the your can create a pull request on GitHub. I had problems with sifting appender before and was able to get some pull requests accepted to fix my problem. David
On 11 Oct 2013, at 21:45, Matt Young <solid@youngdev.net> wrote:
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I hear ya on the sifting appender only accepting 1 key. And I changed the jobId to MDC.put("fname",jobGroup+"/"+jobName+"/"+jobId ); which does work with the following configuration: <appender name="jobLoggerAppender" class="ch.qos.logback.classic.sift.SiftingAppender"> <discriminator class="ch.qos.logback.classic.sift.MDCBasedDiscriminator"> <key>fname</key> <defaultValue>unknown</defaultValue> </discriminator> <sift> <appender name="SIFT_INTERNAL" class="ch.qos.logback.core.FileAppender"> <prudent>true</prudent> <file>${fname}.log</file> <encoder class="ch.qos.logback.classic.encoder.PatternLayoutEncoder"> <pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} %-5level [%thread] %C:%L %msg%n</pattern> </encoder> </appender> </sift> </appender>
What concerns me is that I don't seem to be able to override the MDCAdapter that logback uses for the sifting. The documentation says that the class="..." attribute should override the MDCAdapter implementation used. but it doesn't. No matter what I put in that class attribute, it always uses ch.qos.logback.classic.util.LogbackMDCAdapter
I looked at the source for that MDCAdapter implementation and have confirmed that it does only use one value but that the MDCBasicAdapter from slf4j supports multiple keys. What is preventing me from using the better implementation from SLF4J?
On 10/11/2013 05:35 AM, David Roussel wrote:
- -- Cheers, Matt Young solid@youngdev.net http://youngdev.net
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