Using OmniShuffle

Executing Spark Services

Create an ock_spark.conf file in the /home directory. For details about the parameters in the file, see spark.conf.

Create a file.
```
vim /home/ock_spark.conf
```

Press i to enter the insert mode and add the following content to the file:

spark.master yarn
spark.task.cpus 1
spark.shuffle.compress true
spark.shuffle.spill.compress true
spark.rdd.compress true
spark.executor.extraClassPath     /opt/ock/jars/*
spark.driver.extraClassPath       /opt/ock/jars/*
spark.driver.extraJavaOptions -Djava.library.path=/opt/ock/ucache/23.0.0/linux-aarch64/lib/common:/opt/ock/ucache/23.0.0/linux-aarch64/lib/common/ucx:/opt/ock/ucache/23.0.0/linux-aarch64/lib/common/ucx/ucx:/opt/ock/ucache/23.0.0/linux-aarch64/lib/datakit:/opt/ock/ucache/23.0.0/linux-aarch64/lib/mf:/opt/ock/jars
spark.executor.extraJavaOptions -Djava.library.path=/opt/ock/ucache/23.0.0/linux-aarch64/lib/common:/opt/ock/ucache/23.0.0/linux-aarch64/lib/common/ucx:/opt/ock/ucache/23.0.0/linux-aarch64/lib/common/ucx/ucx:/opt/ock/ucache/23.0.0/linux-aarch64/lib/datakit:/opt/ock/ucache/23.0.0/linux-aarch64/lib/mf:/opt/ock/jars
spark.driver.extraLibraryPath   /opt/ock/ucache/23.0.0/linux-aarch64/lib/common:/opt/ock/ucache/23.0.0/linux-aarch64/lib/common/ucx:/opt/ock/ucache/23.0.0/linux-aarch64/lib/common/ucx/ucx:/opt/ock/ucache/23.0.0/linux-aarch64/lib/datakit:/opt/ock/ucache/23.0.0/linux-aarch64/lib/mf:/opt/ock/jars:.
spark.executor.extraLibraryPath /opt/ock/ucache/23.0.0/linux-aarch64/lib/common:/opt/ock/ucache/23.0.0/linux-aarch64/lib/common/ucx:/opt/ock/ucache/23.0.0/linux-aarch64/lib/common/ucx/ucx:/opt/ock/ucache/23.0.0/linux-aarch64/lib/datakit:/opt/ock/ucache/23.0.0/linux-aarch64/lib/mf:/opt/ock/jars:.
spark.shuffle.manager              org.apache.spark.shuffle.ock.OCKShuffleManager
spark.shuffle.ock.manager true
spark.blacklist.enabled true
spark.files.fetchFailure.unRegisterOutputOnHost true
spark.shuffle.service.enabled  false
spark.blacklist.application.fetchFailure.enabled true
spark.hadoop.mapreduce.fileoutputcommitter.algorithm.version 2
spark.driver.maxResultSize 2g
spark.serializer                        org.apache.spark.serializer.KryoSerializer
spark.executorEnv.OCK_HOME /opt/ock
spark.executorEnv.UCX_USE_MT_MUTEX y
spark.executorEnv.UCX_TLS  tcp
spark.sql.broadcastTimeout 3000
spark.sql.ock.autoConfig.enabled true
spark.sql.ock.autoConfig.history true
spark.sql.ock.autoConfig.globalRuntimePartition false
spark.sql.ock.autoConfig.sample false

Press Esc, type :wq!, and press Enter to save the file and exit.

Start the Spark-SQL CLI.

The following is an example of the native Spark-SQL startup command. You can adjust the values of the configuration items based on the site requirements.

/usr/local/spark/bin/spark-sql --deploy-mode client --driver-cores 8 --driver-memory 40g --num-executors 30 --executor-cores 6 --executor-memory 35g --master yarn --conf spark.task.cpus=1 --conf spark.default.parallelism=600 --conf spark.sql.broadcastTimeout=500 --conf spark.sql.shuffle.partitions=600 --conf spark.sql.adaptive.enabled=true --database tpcds_bin_partitioned_orc_3

Start the SparkExtension plugin.

spark-sql --deploy-mode client --driver-cores 8 \
                               --driver-memory 40G \
                               --num-executors 24 \
                               --executor-cores 12 \
                               --executor-memory 25g \
                               --master yarn \
                               --conf spark.sql.codegen.wholeStage=false \
                               --jars /opt/ock/jars/* \
                               --properties-file /home/ock_spark.conf \
                               --database tpcds_bin_partitioned_orc_3

Check whether OmniShuffle has taken effect.
If the command output contains "Connected to meta rpc server<192.168.10.150:3892> successfully", OmniShuffle has taken effect.

Parent topic: Feature Usage