https://community.cloudera.com/t5/Archives-of-Support-Questions/Yarn-memory-is-zero/m-p/213836#M79047 <P>Can someone guide me on why YARN is utilizing zero out of 16.5 ? If this is an error how can I fix this ?</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="77485-yarn.png" style="width: 1414px;"><img src="https://community.cloudera.com/t5/image/serverpage/image-id/16473i3158422D67A3432C/image-size/medium?v=v2&amp;px=400" role="button" title="77485-yarn.png" alt="77485-yarn.png" /></span></P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="77487-yarn2.png" style="width: 1316px;"><img src="https://community.cloudera.com/t5/image/serverpage/image-id/16474i6DE89C78BEC83DBE/image-size/medium?v=v2&amp;px=400" role="button" title="77487-yarn2.png" alt="77487-yarn2.png" /></span></P> Sun, 18 Aug 2019 03:36:27 GMT 144675 2019-08-18T03:36:27Z https://community.cloudera.com/t5/Archives-of-Support-Questions/Yarn-memory-is-zero/m-p/213836#M79047 <P>Can someone guide me on why YARN is utilizing zero out of 16.5 ? If this is an error how can I fix this ?</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="77485-yarn.png" style="width: 1414px;"><img src="https://community.cloudera.com/t5/image/serverpage/image-id/16473i3158422D67A3432C/image-size/medium?v=v2&amp;px=400" role="button" title="77485-yarn.png" alt="77485-yarn.png" /></span></P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="77487-yarn2.png" style="width: 1316px;"><img src="https://community.cloudera.com/t5/image/serverpage/image-id/16474i6DE89C78BEC83DBE/image-size/medium?v=v2&amp;px=400" role="button" title="77487-yarn2.png" alt="77487-yarn2.png" /></span></P> Sun, 18 Aug 2019 03:36:27 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/Yarn-memory-is-zero/m-p/213836#M79047 144675 2019-08-18T03:36:27Z https://community.cloudera.com/t5/Archives-of-Support-Questions/Yarn-memory-is-zero/m-p/213837#M79048 <P><A rel="user" href="https://community.cloudera.com/users/47540/144675.html" nodeid="47540">@Victor</A></P><P>You can get detailed explaination about Yarn "Cluster Memory" in the following thread. </P><P><A href="https://community.hortonworks.com/questions/144325/why-my-cluster-memory-is-less-even-though-physical.html" target="_blank">https://community.hortonworks.com/questions/144325/why-my-cluster-memory-is-less-even-though-physical.html</A></P><P>Regaarding 0 (Zero Memory utiliaztion). Until you run a job you wont see the memory being utilized.</P><P>So please try running some job like following and then refresh the ambari Yarn dashboard.</P><PRE># su - spark # export SPARK_MAJOR_VERSION=2 # cd /usr/hdp/current/spark2-client # ./bin/spark-submit --class org.apache.spark.examples.SparkPi --master yarn-client --num-executors 3 --driver-memory 512m --executor-memory 512m --executor-cores 1 examples/jars/spark-examples*.jar 10 </PRE><P>.</P> Fri, 01 Jun 2018 18:04:26 GMT https://community.cloudera.com/t5/Archives-of-Support-Questions/Yarn-memory-is-zero/m-p/213837#M79048 jsensharma 2018-06-01T18:04:26Z