spark学习记录

==作者:YB-Chi==

[toc]

知识点

用spark-submit命令提交任务运行,具体使用查看:spark-submit –help

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Options:
--master MASTER_URL spark://host:port, mesos://host:port, yarn, or local.
--deploy-mode DEPLOY_MODE Whether to launch the driver program locally ("client") or
on one of the worker machines inside the cluster ("cluster")
(Default: client).
--class CLASS_NAME Your application's main class (for Java / Scala apps).
--name NAME A name of your application.
--jars JARS Comma-separated list of local jars to include on the driver
and executor classpaths.
--packages Comma-separated list of maven coordinates of jars to include
on the driver and executor classpaths. Will search the local
maven repo, then maven central and any additional remote
repositories given by --repositories. The format for the
coordinates should be groupId:artifactId:version.
--exclude-packages Comma-separated list of groupId:artifactId, to exclude while
resolving the dependencies provided in --packages to avoid
dependency conflicts.
--repositories Comma-separated list of additional remote repositories to
search for the maven coordinates given with --packages.
--py-files PY_FILES Comma-separated list of .zip, .egg, or .py files to place
on the PYTHONPATH for Python apps.
--files FILES Comma-separated list of files to be placed in the working
directory of each executor.

--conf PROP=VALUE Arbitrary Spark configuration property.
--properties-file FILE Path to a file from which to load extra properties. If not
specified, this will look for conf/spark-defaults.conf.

--driver-memory MEM Memory for driver (e.g. 1000M, 2G) (Default: 1024M).
--driver-java-options Extra Java options to pass to the driver.
--driver-library-path Extra library path entries to pass to the driver.
--driver-class-path Extra class path entries to pass to the driver. Note that
jars added with --jars are automatically included in the
classpath.

--executor-memory MEM Memory per executor (e.g. 1000M, 2G) (Default: 1G).

--proxy-user NAME User to impersonate when submitting the application.

--help, -h Show this help message and exit
--verbose, -v Print additional debug output
--version, Print the version of current Spark

Spark standalone with cluster deploy mode only:
--driver-cores NUM Cores for driver (Default: 1).

Spark standalone or Mesos with cluster deploy mode only:
--supervise If given, restarts the driver on failure.
--kill SUBMISSION_ID If given, kills the driver specified.
--status SUBMISSION_ID If given, requests the status of the driver specified.

Spark standalone and Mesos only:
--total-executor-cores NUM Total cores for all executors.

Spark standalone and YARN only:
--executor-cores NUM Number of cores per executor. (Default: 1 in YARN mode,
or all available cores on the worker in standalone mode)

YARN-only:
--driver-cores NUM Number of cores used by the driver, only in cluster mode
(Default: 1).
--queue QUEUE_NAME The YARN queue to submit to (Default: "default").
--num-executors NUM Number of executors to launch (Default: 2).
--archives ARCHIVES Comma separated list of archives to be extracted into the
working directory of each executor.
--principal PRINCIPAL Principal to be used to login to KDC, while running on
secure HDFS.
--keytab KEYTAB The full path to the file that contains the keytab for the
principal specified above. This keytab will be copied to
the node running the Application Master via the Secure
Distributed Cache, for renewing the login tickets and the
delegation tokens periodically.

问题记录

Initial job has not accepted any resources; check your cluster UI to ensure that workers are registered and have sufficient resources

当前的集群的可用资源不能满足应用程序所请求的资源。我spark submit的时候给的资源太大了

资源分2类: cores 和 ram
Core代表对执行可用的executor slots
Ram代表每个Worker上被需要的空闲内存来运行你的Application。
解决方法:
应用不要请求多余空闲可用资源的
关闭掉已经执行结束的Application

spark-submit执行命令

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spark-submit --master spark://FJ-DCLOUD-HDP01:7077 --conf "spark.scheduler.mode=FAIR" --total-executor-cores 8 --driver-memory 20g --executor-memory 20g /home/yarn/dev/cyb/a.jar 

a.jar不需要jar包 所要用的jar包放到spark服务器的lib下 例如:
/home/yarn/spark-1.5.2-bin-hadoop2.6/lib
命令会默认读取改路径下的jar
关于此设置的配置 见下条

spark-submit指定服务器jar包配置

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[yarn@EPRI-DCLOUD-ETL01 conf]$ pwd
/home/yarn/spark-1.5.2-bin-hadoop2.6/conf
[root@EPRI-DCLOUD-ETL01 conf]# ls
docker.properties.template fairscheduler.xml.template hive-site.xml log4j.properties metrics.properties.template slaves spark-defaults.conf spark-env.sh
[root@EPRI-DCLOUD-ETL01 conf]# vi spark-env.sh

export SPARK_YARN_MODE=true
export MASTER=yarn-client
export JAVA_HOME=/usr/java/jdk1.7.0_55
export SCALA_HOME=/usr/share/scala-2.11.6
export SPARK_MASTER_IP=EPRI-DCLOUD-HDP01
export SPARK_CLASSPATH=$SPARK_CLASSPATH:/usr/share/spark-1.5.2-bin-hadoop2.6/lib/*:/usr/share/hadoop-2.6.0/*:/usr/share/hadoop-2.6.0/etc/*:/usr/share/hadoop-2.6.0/lib/*
export HADOOP_HOME=/usr/share/hadoop-2.6.0export HADOOP_CONF_DIR=/usr/share/hadoop-2.6.0/etc/hadoop
文章作者: CYBSKY
文章链接: https://cybsky.top/2022/09/07/cyb-mds/bigdata/Spark/spark学习记录/
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