Top "Yarn" questions

YARN (Yet Another Resource Negotiator) is a key component of second generation Apache Hadoop infrastructure.

issue Running Spark Job on Yarn Cluster

I want to run my spark Job in Hadoop YARN cluster mode, and I am using the following command: spark-submit …

hadoop apache-spark hdfs yarn cloudera
How to limit the number of retries on Spark job failure?

We are running a Spark job via spark-submit, and I can see that the job will be re-submitted in the …

apache-spark yarn
How can I access S3/S3n from a local Hadoop 2.6 installation?

I am trying to reproduce an Amazon EMR cluster on my local machine. For that purpose, I have installed the …

hadoop amazon-web-services amazon-s3 yarn hadoop2
MapReduce job hangs, waiting for AM container to be allocated

I tried to run simple word count as MapReduce job. Everything works fine when run locally (all work done on …

hadoop mapreduce yarn
Apache Spark: setting executor instances does not change the executors

I have an Apache Spark application running on a YARN cluster (spark has 3 nodes on this cluster) on cluster mode. …

apache-spark yarn
Difference between `yarn.scheduler.maximum-allocation-mb` and `yarn.nodemanager.resource.memory-mb`?

What is difference between yarn.scheduler.maximum-allocation-mb and yarn.nodemanager.resource.memory-mb? I see both of these in yarn-site.xml …

hadoop memory-management hdfs yarn
hadoop - Connection refused on namenode

I've searched web and stackoverflow for a long time but it was not useful. I have installed hadoop yarn 2.2.0 in 2 …

hadoop telnet yarn
Any command to get active namenode for nameservice in hadoop?

The command: hdfs haadmin -getServiceState machine-98 Works only if you know the machine name. Is there any command like: hdfs …

hadoop high-availability yarn
How to kill a mapred job started by hive?

I'm working by CDH 5.1 now. It starts normal Hadoop job by YARN but hive still works with mapred. Sometimes a …

hadoop mapreduce hive yarn cloudera-cdh
How to restart yarn on AWS EMR

I am using Hadoop 2.6.0 (emr-4.2.0 image). I have made some changes in yarn-site.xml and want to restart yarn to …

hadoop yarn emr