[ https://issues.apache.org/jira/browse/TEZ-4209?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Rajesh Balamohan resolved TEZ-4209. ----------------------------------- Resolution: Won't Fix > Use task counter information to compute keycount during hashtable loading > ------------------------------------------------------------------------- > > Key: TEZ-4209 > URL: https://issues.apache.org/jira/browse/TEZ-4209 > Project: Apache Tez > Issue Type: Bug > Reporter: Rajesh Balamohan > Priority: Major > > There are cases when compiler misestimates key count and this results in a > number of hashtable resizes during runtime. > [https://github.com/apache/hive/blob/master/ql/src/java/org/apache/hadoop/hive/ql/exec/vector/mapjoin/fast/VectorMapJoinFastHashTableLoader.java#L128] > In such cases, it would be good to get "approximate_input_records" (TEZ-4207) > counter from upstream to compute the key count more accurately at runtime. > -- This message was sent by Atlassian Jira (v8.3.4#803005)