[ https://issues.apache.org/jira/browse/HIVE-16552?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Xuefu Zhang reassigned HIVE-16552: ---------------------------------- > Limit the number of tasks a Spark job may contain > ------------------------------------------------- > > Key: HIVE-16552 > URL: https://issues.apache.org/jira/browse/HIVE-16552 > Project: Hive > Issue Type: Improvement > Components: Spark > Reporter: Xuefu Zhang > Assignee: Xuefu Zhang > > It's commonly desirable to block bad and big queries that takes a lot of YARN > resources. One approach, similar to mapreduce.job.max.map in MapReduce, is to > stop a query that invokes a Spark job that contains too many tasks. The > proposal here is to introduce hive.spark.job.max.tasks with a default value > of -1 (no limit), which an admin can set to block queries that trigger too > many spark tasks. > Please note that this control knob applies to a spark job, though it's > possible that one query can trigger multiple Spark jobs (such as in case of > map-join). Nevertheless, the proposed approach is still helpful. -- This message was sent by Atlassian JIRA (v6.3.15#6346)