[
https://issues.apache.org/jira/browse/KYLIN-4813?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17236070#comment-17236070
]
ASF GitHub Bot commented on KYLIN-4813:
---------------------------------------
hit-lacus edited a comment on pull request #1481:
URL: https://github.com/apache/kylin/pull/1481#issuecomment-731095920
## Cause Analysis
```sh
2020-11-20 18:22:10,342 INFO [Scheduler 1960610874 Job
79331eef-a64f-411a-a8b5-f8696d301438-104] job.NSparkExecutable:41 : cmd:
2020-11-20 18:22:10,342 INFO [Scheduler 1960610874 Job
79331eef-a64f-411a-a8b5-f8696d301438-104] job.NSparkExecutable:41 : export
HADOOP_CONF_DIR=/root/lib/kylin-dist/apache-kylin-4.0.0-SNAPSHOT-bin/hadoop_conf
&&
/root/open-source/deploy/kylin-instances/spark-2.4.6-bin-hadoop2.7/bin/spark-submit
--class org.apache.kylin.engine.spark.application.SparkEntry
--conf 'spark.executor.instances=1'
--conf 'spark.yarn.queue=default'
--conf 'spark.history.fs.logDirectory=hdfs:///kylin/spark-history'
--conf 'spark.master=yarn'
--conf 'spark.executor.extraJavaOptions=-Dfile.encoding=UTF-8
-Dhdp.version=current -Dlog4j.configuration=spark-executor-log4j.properties
-Dlog4j.debug -Dkylin.hdfs.working.dir=${kylin.env.hdfs-working-dir}
-Dkylin.metadata.identifier=${kylin.metadata.url.identifier}
-Dkylin.spark.category=job -Dkylin.spark.project=${job.project}
-Dkylin.spark.identifier=${job.id} -Dkylin.spark.jobName=${job.stepId}
-Duser.timezone=${user.timezone}'
--conf 'spark.hadoop.yarn.timeline-service.enabled=false'
--conf 'spark.driver.cores=1' --conf 'spark.executor.memory=4G'
--conf 'spark.eventLog.enabled=true'
--conf 'spark.eventLog.dir=hdfs:///kylin/spark-history'
--conf 'spark.executor.cores=1'
--conf 'spark.executor.memoryOverhead=1024M'
--conf 'spark.driver.memory=1G'
--conf 'spark.shuffle.service.enabled=true'
--conf
'spark.driver.extraJavaOptions=-Dlog4j.configuration=file:/root/lib/kylin-dist/apache-kylin-4.0.0-SNAPSHOT-bin/conf/spark-driver-log4j.properties
-Dkylin.kerberos.enabled=false
-Dkylin.hdfs.working.dir=hdfs://cdh-master:8020/regression_testing/400alpha/xxyu/
-Dspark.driver.log4j.appender.hdfs.File=hdfs://cdh-master:8020/regression_testing/400alpha/xxyu/learn_kylin/spark_logs/driver/79331eef-a64f-411a-a8b5-f8696d301438-01/execute_output.json.1605867729760.log
-Dspark.driver.rest.server.ip=10.1.3.90 -Dspark.driver.rest.server.port=7070
-Dspark.driver.param.taskId=79331eef-a64f-411a-a8b5-f8696d301438-01
-Dspark.driver.local.logDir=/root/lib/kylin-dist/apache-kylin-4.0.0-SNAPSHOT-bin/logs/spark'
--conf 'spark.executor.extraClassPath=kylin-parquet-job-4.0.0-SNAPSHOT.jar'
--conf
'spark.driver.extraClassPath=/root/lib/kylin-dist/apache-kylin-4.0.0-SNAPSHOT-bin/lib/kylin-parquet-job-4.0.0-SNAPSHOT.jar'
--files
/root/lib/kylin-dist/apache-kylin-4.0.0-SNAPSHOT-bin/conf/spark-executor-log4j.properties
--name job_step_79331eef-a64f-411a-a8b5-f8696d301438-01
--jars
/root/lib/kylin-dist/apache-kylin-4.0.0-SNAPSHOT-bin/lib/kylin-parquet-job-4.0.0-SNAPSHOT.jar
/root/lib/kylin-dist/apache-kylin-4.0.0-SNAPSHOT-bin/lib/kylin-parquet-job-4.0.0-SNAPSHOT.jar
-className org.apache.kylin.engine.spark.job.CubeBuildJob
/root/lib/kylin-dist/apache-kylin-4.0.0-SNAPSHOT-bin/tomcat/temp/segmentIds2791542431972229325
```
```sh
[root@cdh-master kylin]# yarn logs -applicationId
application_1589169585068_30012
20/11/20 18:29:25 INFO client.RMProxy: Connecting to ResourceManager at
cdh-master/10.1.3.90:8032
Container: container_1589169585068_30012_01_000002 on cdh-worker-1_8041
=========================================================================
LogType:stderr
Log Upload Time:Fri Nov 20 18:23:56 +0800 2020
LogLength:3373769
Log Contents:
log4j:WARN No such property [rollingPeriod] in
org.apache.kylin.engine.spark.common.logging.SparkExecutorHdfsAppender.
log4j:WARN SparkExecutorHdfsLogAppender starting ...
log4j:WARN hdfsWorkingDir ->
SLF4J: Class path contains multiple SLF4J bindings.
SLF4J: Found binding in
[jar:file:/yarn/nm/usercache/root/filecache/835102/__spark_libs__3815910076379456523.zip/slf4j-log4j12-1.7.16.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: Found binding in
[jar:file:/opt/cloudera/parcels/CDH-5.7.6-1.cdh5.7.6.p0.6/jars/slf4j-log4j12-1.7.5.jar!/org/slf4j/impl/StaticLoggerBinder.class]
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an
explanation.
SLF4J: Actual binding is of type [org.slf4j.impl.Log4jLoggerFactory]
log4j:WARN metadataIdentifier ->
log4j:WARN category -> job
log4j:WARN identifier -> application_1589169585068_30012
log4j:WARN project ->
log4j:WARN jobName ->
log4j:WARN SparkExecutorHdfsLogAppender started ...
```
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> Refine spark logger for Kylin 4 build engine
> --------------------------------------------
>
> Key: KYLIN-4813
> URL: https://issues.apache.org/jira/browse/KYLIN-4813
> Project: Kylin
> Issue Type: Improvement
> Affects Versions: v4.0.0-alpha
> Reporter: Xiaoxiang Yu
> Assignee: Yaqian Zhang
> Priority: Major
> Fix For: v4.0.0-beta
>
>
> - Separate spark log from kylin log
> - Store driver/executor log into HDFS.
> - Provided a API to view driver log.
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