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Subject: Re: ResourceManager not getting started in 0.23
From: Arun C Murthy <acm@hortonworks.com>
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 <CADYHM8wrRdaFBiS+bPUUk+SKHEbEi2AfevEJnSsgo7eM-aooDw@mail.gmail.com>
Date: Wed, 21 Dec 2011 09:38:02 -0800
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References: 
 <CADYHM8wrRdaFBiS+bPUUk+SKHEbEi2AfevEJnSsgo7eM-aooDw@mail.gmail.com>
To: mapreduce-dev@hadoop.apache.org

Two ways around:

# You might have a stale version of hadoop-common, apparently that =
should fix it.
# Upgrade to include MAPREDUCE-3588 which got committed yesterday.

Arun


On Dec 21, 2011, at 9:34 AM, Praveen Sripati wrote:

> Hi,
>=20
> I am making some change to the 0.23 branch and got the latest code and
> successfully build it. Am able to start the NameNode and the DataNode, =
but
> when I start the ResourceManager I am getting =
'ClassNotFoundException'. The
> classpath to run the ResourceManager is not getting generated properly =
by
> the 'sbin/yarn-daemon.sh' command. I also noticed that the modules =
folder
> is not getting created when the hadoop-0.23.1-SNAPSHOT.tar.gz is =
untarred.
>=20
> Is this a bug or I missed something?
>=20
> ---------------------
>=20
> sbin/yarn-daemon.sh start resourcemanager
>=20
> -classpath
> =
/home/praveensripati/Hadoop/0.23/deploy/hadoop-0.23.1-SNAPSHOT/conf/:/home=
/praveensripati/Hadoop/0.23/deploy/hadoop-0.23.1-SNAPSHOT/conf/:/home/prav=
eensripati/Hadoop/0.23/deploy/hadoop-0.23.1-SNAPSHOT/conf/:/usr/lib/jvm/jd=
k1.6.0_27/lib/tools.jar:/usr/lib/jvm/jdk1.6.0_27/lib/tools.jar:/home/prave=
ensripati/Hadoop/0.23/deploy/hadoop-0.23.1-SNAPSHOT/conf//rm-config/log4j.=
properties
>=20
> Caused by: java.lang.ClassNotFoundException:
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager
>    at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
>    at java.security.AccessController.doPrivileged(Native Method)
>=20
> ---------------------
>=20
> BTW, I am able to run the example Hadoop after downloading
> hadoop-0.23.0.tar.gz from Apache.
>=20
> I have the following settings in .bashrc
>=20
> export
> =
HADOOP_DEV_HOME=3D/home/praveensripati/Hadoop/0.23/deploy/hadoop-0.23.1-SN=
APSHOT
> export HADOOP_MAPRED_HOME=3D$HADOOP_DEV_HOME
> export HADOOP_COMMON_HOME=3D$HADOOP_DEV_HOME
> export HADOOP_HDFS_HOME=3D$HADOOP_DEV_HOME
> export YARN_HOME=3D$HADOOP_DEV_HOME
> export HADOOP_CONF_DIR=3D$HADOOP_DEV_HOME/conf/
> export YARN_CONF_DIR=3D~$HADOOP_DEV_HOME/conf/
>=20
> Regards,
> Praveen