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https://issues.apache.org/jira/browse/SPARK-8981?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14622666#comment-14622666
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Paweł Kopiczko edited comment on SPARK-8981 at 7/10/15 6:04 PM:
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Sure. I believe that when executor is spawned it has access to {{appName}} and
{{applicationId}} properties of `SparkContext` instance. I'd like it to put
these values in MDC
https://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/MDC.html#put(java.lang.String,
java.lang.Object). Having those values in MDC and setting %X\{appName\} and
%X\{applicationId\} in log4j's PatternLayout would allow filtering out specific
application logs from a single file. Does that make sense?
was (Author: kopiczko):
Sure. I believe that when executor is spawned it has access to appName and
applicationId properties of `SparkContext` instance. I'd like it to put these
values in MDC
https://logging.apache.org/log4j/1.2/apidocs/org/apache/log4j/MDC.html#put(java.lang.String,
java.lang.Object). Having those values in MDC and setting %X{appName} and
%X{applicationId} in log4j's PatternLayout would allow filtering out specific
application logs from a single file. Does that make sense?
> Set applicationId and appName in log4j MDC
> ------------------------------------------
>
> Key: SPARK-8981
> URL: https://issues.apache.org/jira/browse/SPARK-8981
> Project: Spark
> Issue Type: New Feature
> Reporter: Paweł Kopiczko
> Priority: Minor
>
> It would be nice to have, because it's good to have logs in one file when
> using log agents (like logentires) in standalone mode. Also allows
> configuring rolling file appender without a mess when multiple applications
> are running.
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