Gopal V created HIVE-21400: ------------------------------ Summary: Vectorization: LazyBinarySerializeWrite allocates Field() within the loop Key: HIVE-21400 URL: https://issues.apache.org/jira/browse/HIVE-21400 Project: Hive Issue Type: Bug Components: Vectorization Affects Versions: 4.0.0 Reporter: Gopal V
GC thrash from an unexpected source in ReduceSinkOperator. {code} org.apache.hadoop.hive.serde2.lazybinary.fast.LazyBinarySerializeWrite.resetWithoutOutput(LazyBinarySerializeWrite.java:136) at org.apache.hadoop.hive.serde2.lazybinary.fast.LazyBinarySerializeWrite.reset(LazyBinarySerializeWrite.java:132) at org.apache.hadoop.hive.ql.exec.vector.reducesink.VectorReduceSinkUniformHashOperator.process(VectorReduceSinkUniformHashOperator.java:180) {code} GC space is getting thrashed by the {code} root = new Field(STRUCT); {code} for every row. -- This message was sent by Atlassian JIRA (v7.6.3#76005)