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Subject: Re: missing method in my slf4j after excluding ZK log4j
From: Matt Brown <matt@mattnworb.com>
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Date: Mon, 12 May 2014 13:51:21 -0400
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Upgrade slf4j and log4j-over-slf4j to at least v1.7.6:

http://www.slf4j.org/news.html
http://bugzilla.slf4j.org/show_bug.cgi?id=3D279



On May 12, 2014, at 11:07 AM, Adrian Mocanu <amocanu@verticalscope.com> =
wrote:

> Hey guys,
> I use Spark 9.1 which is dependent on ZK. In my project I exclude ZK =
log4j bc I want to use logback, but an issue arises.
> I wonder if anyone else has run into this.
>=20
> ZK uses log4j v1.2.17 and slf4j-log4j12:1.7.2
> I use slf4j 1.7.5, logback 1.0.13, and log4joverslf4j v 1.7.5
>=20
> I think my slf4j 1.7.5 doesn't agree with what zookeeper expects in =
its log4j v 1.2.17 because I get missing method error:
> java.lang.NoSuchMethodError: =
org.apache.log4j.Logger.setLevel(Lorg/apache/log4j/Level;)V
>                at =
org.apache.spark.util.AkkaUtils$$anonfun$createActorSystem$1.apply(AkkaUti=
ls.scala:58)
>                at =
org.apache.spark.util.AkkaUtils$$anonfun$createActorSystem$1.apply(AkkaUti=
ls.scala:58)
>                at scala.Option.map(Option.scala:145)
>                at =
org.apache.spark.util.AkkaUtils$.createActorSystem(AkkaUtils.scala:58)
>                at =
org.apache.spark.SparkEnv$.create(SparkEnv.scala:126)
>                at =
org.apache.spark.SparkContext.<init>(SparkContext.scala:139)
>                at =
org.apache.spark.streaming.StreamingContext$.createNewSparkContext(Streami=
ngContext.scala:500)
>                at =
org.apache.spark.streaming.StreamingContext.<init>(StreamingContext.scala:=
76)
> ...
>=20
> Is there a way to find out what versions of slf4j I need to make it =
work with log4j 1.2.17?
>=20
> Thanks a lot!
> -Adrian
>=20