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From Adrian Mocanu <amoc...@verticalscope.com>
Subject RE: same log4j slf4j error in spark 9.1
Date Fri, 16 May 2014 20:58:34 GMT
Hi guys,
This has been solved. These emails are from last week when the mailing list didn’t work.

From: Tathagata Das [mailto:tathagata.das1565@gmail.com]
Sent: May-15-14 4:50 PM
To: user@spark.apache.org
Cc: user@spark.incubator.apache.org
Subject: Re: same log4j slf4j error in spark 9.1

Spark 0.9.1 does not depend on log4j-over-slf4j (here<https://git-wip-us.apache.org/repos/asf?p=spark.git;a=blob;f=project/SparkBuild.scala;h=52e894e25635a2029464f35a87d65fc108975350;hb=4c43182b6d1b0b7717423f386c0214fe93073208>
is the SBT file for 0.9.1). Are you sure that no other dependency in your project is bringing
in dependency in the classpath? Alternatively, if you dont want slf4j-log4j12 from spark,
you can safely exclude in the dependencies.

TD

On Thu, May 8, 2014 at 12:56 PM, Adrian Mocanu <amocanu@verticalscope.com<mailto:amocanu@verticalscope.com>>
wrote:
I recall someone from the Spark team (TD?) saying that Spark 9.1 will change the logger and
the circular loop error between slf4j and log4j wouldn’t show up.

Yet on Spark 9.1 I still get
SLF4J: Detected both log4j-over-slf4j.jar AND slf4j-log4j12.jar on the class path, preempting
StackOverflowError.
SLF4J: See also http://www.slf4j.org/codes.html#log4jDelegationLoop for more details.

Any solutions?

-Adrian


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