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ASF GitHub Bot updated HIVE-23745: ---------------------------------- Labels: pull-request-available (was: ) > Avoid copying userpayload in task communicator > ---------------------------------------------- > > Key: HIVE-23745 > URL: https://issues.apache.org/jira/browse/HIVE-23745 > Project: Hive > Issue Type: Sub-task > Reporter: Mustafa İman > Assignee: Mustafa İman > Priority: Major > Labels: pull-request-available > Time Spent: 10m > Remaining Estimate: 0h > > [https://github.com/apache/hive/blob/master/llap-common/src/java/org/apache/hadoop/hive/llap/tez/Converters.java#L182] > I see this copy take a few milliseconds sometimes. Delay here adds up for > all tasks of a single vertex in LlapTaskCommunicator as it processes tasks > one by one. User payload never changes in this codepath. Copy is made because > of limitations of Protobuf library. Protobuf adds a UnsafeByteOperations > class that avoid copying of ByteBuffers in 3.1 version. This can be resolved > when Protobuf is upgraded. -- This message was sent by Atlassian Jira (v8.20.10#820010)