Apache Kylin : Analytical Data Warehouse for Big Data
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Spark Job Option
2500000Property Required Priority Datatype Default Description Version Reference kylin.engine.spark.build-class-nameno low String org.apache.kylin.engine.spark.job.CubeBuildJobFor developer only. The className use in spark-submit. 4.0+ kylin.engine.spark.cluster-info-fetcher-class-nameno String org.apache.kylin.cluster.YarnInfoFetcher
Fetch yarn information of spark job kylin.engine.spark-conf.XXXno String Spark configurations want to override for build job like "spark.driver.cores". If don't set these spark properties, kylin will automaticly adjust these properties before submitting build job. 4.0+ Adaptively-adjust-spark-parameters kylin.storage.providerno String org.apache.kylin.common.storage.DefaultStorageProvider
不同的云厂商返回的 ContentSummary 对象不尽相同, 需要针对性地提供实现请参考 org.apache.kylin.common.storage.IStorageProvider
kylin.engine.spark.merge-class-nameno String org.apache.kylin.engine.spark.job.CubeMergeJobFor developer only. The className use in spark-submit kylin.engine.spark.task-impact-instance-enabledno Boolean true Check kylin.engine.spark.task-core-factor. If kylin.engine.spark.task-impact-instance-enabled is set to true and kylin.engine.spark-conf.spark.executor.instances is not set, Kylin will calculate spark.executor.instances for Build Engine. 4.0+ Adaptively-adjust-spark-parameters kylin.engine.spark.task-core-factorno Integer 3 kylin.engine.driver-memory-baseno Integer 1024 Auto adujst spark.driver.memory for Build Engine if kylin.engine.spark-conf.spark.driver.memory is not set.
4.0+Adaptively-adjust-spark-parameters kylin.engine.driver-memory-strategyno Array {"2", "20", "100"}kylin.engine.driver-memory-maximumno Integer 4096 kylin.engine.persist-flattable-thresholdno Integer 1 If the number of cuboids which will be build from flat table is bigger than this threshold, the flat table will be persisted into $HDFS_WORKING_DIR/job_tmp/flat_table for saving more memory. 4.0+ kylin.snapshot.parallel-build-timeout-secondsno 3600
如果希望提升快照的构建速度的话, 可以设置这个. To improve the speed of snapshot build.
4.0+kylin.snapshot.parallel-build-enabledno Boolean true kylin.spark-conf.auto.priorno Boolean true 是否需要自动设置一些 SparkConf. If need to adjust spark parameters adaptively. 4.0+ Adaptively-adjust-spark-parameters kylin.engine.submit-hadoop-conf-dirno String /etc/hadoop/conf Set HADOOP_CONF_DIR for spark-submit.kylin.storage.columnar.shard-size-mbno Integer 128 The size of each parquet partition file of cuboid
4.0+ShardBy ylin.storage.columnar.shard-rowcountno Long The number rows of each parquet partition file of cuboid kylin.storage.columnar.shard-countdistinct-rowcountno Long 1000000 The number rows of each parquet partition file of cuboid when the shard column is distinct column. kylin.query.spark-engine.join-memory-fractionno Double 0.3 限制 广播Join使用的内存, 这个名字是不是有问题, 为啥是 query 开头
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