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Posted to commits@airflow.apache.org by "Sergio Soto (Jira)" <ji...@apache.org> on 2019/09/02 15:26:00 UTC

[jira] [Created] (AIRFLOW-5385) SparkSubmit status spend lot of time

Sergio Soto created AIRFLOW-5385:
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             Summary: SparkSubmit status spend lot of time
                 Key: AIRFLOW-5385
                 URL: https://issues.apache.org/jira/browse/AIRFLOW-5385
             Project: Apache Airflow
          Issue Type: Improvement
          Components: contrib
    Affects Versions: 1.10.2
            Reporter: Sergio Soto


Hello,

we have an issue with SparkSubmitOperator.  Airflow DAGs shows that some streaming applications breaks out. I analyzed this behaviour. The SparkSubmitHook is the responsable of check the driver status. 

We discovered some timeouts and tried to reproduce checking command. This is an execution with `time`:
{code:java}
time /opt/java/jdk1.8.0_181/jre/bin/java -cp /opt/shared/spark/client/conf/:/opt/shared/spark/client/jars/* -Xmx1g org.apache.spark.deploy.SparkSubmit --master spark://spark-master.corp.com:6066 --status driver-20190901180337-2749 
Using Spark's default log4j profile: org/apache/spark/log4j-defaults.properties
19/09/02 17:05:53 INFO RestSubmissionClient: Submitting a request for the status of submission driver-20190901180337-2749 in spark://lgmadbdtpspk01v.corp.logitravelgroup.com:6066.
19/09/02 17:05:59 INFO RestSubmissionClient: Server responded with SubmissionStatusResponse:
{
  "action" : "SubmissionStatusResponse",
  "driverState" : "RUNNING",
  "serverSparkVersion" : "2.2.1",
  "submissionId" : "driver-20190901180337-2749",
  "success" : true,
  "workerHostPort" : "172.25.10.194:45441",
  "workerId" : "worker-20190821201014-172.25.10.194-45441"
}

real 0m11.598s 
user 0m2.092s 
sys 0m0.222s{code}
We analyzed the Scala code and Spark API. This spark-submit status command ends with a http get request to an url. Using curl, this is the time spent by spark master to return status:
{code:java}
 time curl "http://lgmadbdtpspk01v.corp.logitravelgroup.com:6066/v1/submissions/status/driver-20190901180337-2749"
{
  "action" : "SubmissionStatusResponse",
  "driverState" : "RUNNING",
  "serverSparkVersion" : "2.2.1",
  "submissionId" : "driver-20190901180337-2749",
  "success" : true,
  "workerHostPort" : "172.25.10.194:45441",
  "workerId" : "worker-20190821201014-172.25.10.194-45441"
}
real	0m0.011s
user	0m0.000s
sys	0m0.006s
{code}
Task spends 11.59 seconds with spark submit versus 0.011seconds with curl

How can be this behaviour explained?



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