failed to connect hadoop spark - apache-spark

Question

I am a beginner in spark job and spark configuration
I try to submit a spark job, after a few minutes (job is accepted and running during few minutes) the job fails with a connection refused.
User class threw exception: org.apache.spark.SparkException: Job aborted due to stage failure: ShuffleMapStage 2
Most recent failure reason: org.apache.spark.shuffle.FetchFailedException: Failed to connect to my.domain.com/myIp:portNumber
I also have this error with jobs success
ERROR shuffle.RetryingBlockFetcher: Exception while beginning fetch of 1 outstanding blocks
On my computer, with intellij Idea my job turn, this is not a code mistake
I try several time to change configuration in yarn-site.xml and mapred-site.xml
This is a hadoop hdfs cluster, 3 nodes, 2 cores on each node, 8GB RAM on each node, I try to submit with this command line :
spark-submit --packages org.apache.spark:spark-avro_2.11:2.4.3 --class MyClass --master yarn --deploy-mode cluster myJar.jar
mapred-site.xml :
<property>
<value>yarn</value>
<name>mapreduce.framework.name</name>
</property>
<property>
<name>yarn.app.mapreduce.am.env</name>
<value>HADOOP_MAPRED_HOME=$HADOOP_HOME</value>
</property>
<property>
<name>mapreduce.map.env</name>
<value>HADOOP_MAPRED_HOME=$HADOOP_HOME</value>
</property>
<property>
<name>mapreduce.reduce.env</name>
<value>HADOOP_MAPRED_HOME=$HADOOP_HOME</value>
</property>
<property>
<name>mapreduce.map.memory.mb</name>
<value>1000</value>
</property>
<property>
<name>mapreduce.reduce.memory.mb</name>
<value>1000</value>
</property>
<property>
<name>yarn.app.mapreduce.am.resource.mb</name>
<value>2000</value>
</property>
yarn-site.xml
<property>
<name>yarn.acl.enable</name>
<value>0</value>
</property>
<property>
<name>yarn.resourcemanager.hostname</name>
<value>ipadress</value>
</property>
<property>
<name>yarn.nodemanager.aux-services</name>
<value>mapreduce_shuffle</value>
</property>
<property>
<name>yarn.nodemanager.resource.memory-mb</name>
<value>4000</value>
</property>
<property>
<name>yarn.scheduler.minimum-allocation-mb</name>
<value>500</value>
</property>
<property>
<name>yarn.scheduler.minimum-allocation-mb</name>
<value>2000</value>
</property>
spark-default.conf
spark.master yarn
spark.driver.memory 1g
spark.history.fs.update.interval 30s
spark.history.ui.port port
spark.core.connection.ack.wait.timeout 600s
spark.default.parallelism 2
spark.executor.memory 2g
spark.cores.max 2
spark.executor.cores 2