Have you tried setting spark.executor.instances=0 to a positive non-zero value? Also, since its a streaming application set executor cores > 1.
On Wed, Aug 23, 2017 at 3:38 AM, Karthik Palaniappan <karthik...@hotmail.com > wrote: > I ran the HdfsWordCount example using this command: > > spark-submit run-example \ > --conf spark.streaming.dynamicAllocation.enabled=true \ > --conf spark.executor.instances=0 \ > --conf spark.dynamicAllocation.enabled=false \ > --conf spark.master=yarn \ > --conf spark.submit.deployMode=client \ > org.apache.spark.examples.streaming.HdfsWordCount /foo > > I tried it on both Spark 2.1.1 (through HDP 2.6) and Spark 2.2.0 (through > Google Dataproc 1.2), and I get the same message repeatedly that Spark > cannot allocate any executors. > > 17/08/22 19:34:57 INFO org.spark_project.jetty.util.log: Logging > initialized @1694ms > 17/08/22 19:34:57 INFO org.spark_project.jetty.server.Server: > jetty-9.3.z-SNAPSHOT > 17/08/22 19:34:57 INFO org.spark_project.jetty.server.Server: Started > @1756ms > 17/08/22 19:34:57 INFO org.spark_project.jetty.server.AbstractConnector: > Started ServerConnector@578782d6{HTTP/1.1,[http/1.1]}{0.0.0.0:4040} > 17/08/22 19:34:58 INFO > com.google.cloud.hadoop.fs.gcs.GoogleHadoopFileSystemBase: > GHFS version: 1.6.1-hadoop2 > 17/08/22 19:34:58 INFO org.apache.hadoop.yarn.client.RMProxy: Connecting > to ResourceManager at hadoop-m/10.240.1.92:8032 > 17/08/22 19:35:00 INFO org.apache.hadoop.yarn.client.api.impl.YarnClientImpl: > Submitted application application_1503036971561_0022 > 17/08/22 19:35:04 WARN org.apache.spark.streaming.StreamingContext: > Dynamic Allocation is enabled for this application. Enabling Dynamic > allocation for Spark Streaming applications can cause data loss if Write > Ahead Log is not enabled for non-replayable sources like Flume. See the > programming guide for details on how to enable the Write Ahead Log. > 17/08/22 19:35:21 WARN org.apache.spark.scheduler.cluster.YarnScheduler: > Initial job has not accepted any resources; check your cluster UI to ensure > that workers are registered and have sufficient resources > 17/08/22 19:35:36 WARN org.apache.spark.scheduler.cluster.YarnScheduler: > Initial job has not accepted any resources; check your cluster UI to ensure > that workers are registered and have sufficient resources > 17/08/22 19:35:51 WARN org.apache.spark.scheduler.cluster.YarnScheduler: > Initial job has not accepted any resources; check your cluster UI to ensure > that workers are registered and have sufficient resources > > I confirmed that the YARN cluster has enough memory for dozens of > executors, and verified that the application allocates executors when using > Core's spark.dynamicAllocation.enabled=true, and leaving spark.streaming. > dynamicAllocation.enabled=false. > > Is streaming dynamic allocation actually supported? Sean Owen suggested it > might have been experimental: https://issues.apache.org/jira/browse/SPARK- > 21792. > -- Cheers!