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https://issues.apache.org/jira/browse/KAFKA-1765?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jay Kreps resolved KAFKA-1765.
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Resolution: Fixed
> slf4j binding conflict in slf4j-log4j12 and kafka-assembly
> ----------------------------------------------------------
>
> Key: KAFKA-1765
> URL: https://issues.apache.org/jira/browse/KAFKA-1765
> Project: Kafka
> Issue Type: Bug
> Components: log
> Affects Versions: 0.8.0
> Environment: slf4j-log4j12 kafka-assembly
> Reporter: shizhu, wang
> Priority: Critical
>
> Before our project use slf4j which binded to log4j for logging. But after
> import
> kafka-assembly.0.8.0.jar, log cannot work as expected. It just keep printing
> log in console now instead of log files. Looked into kafka-assembly.0.8.0.jar
> and find there is one SimpleLogger:
> StringBuffer buf = new StringBuffer();
> long millis = System.currentTimeMillis();
> buf.append(millis - startTime);
> buf.append(" [");
> buf.append(Thread.currentThread().getName());
> buf.append("] ");
> buf.append(level);
> buf.append(" ");
> buf.append(name);
> buf.append(" - ");
> buf.append(message);
> buf.append(LINE_SEPARATOR);
> System.err.print(buf.toString());
> if(t != null)
> t.printStackTrace(System.err);
> System.err.flush();
> but I don't want this SimpleLogger in kafka-assembly. Can you advise how can
> I get rid of this reference to this class(cannot remove the jar, because is
> necessary)
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