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Hive QA commented on HIVE-20279: -------------------------------- Here are the results of testing the latest attachment: https://issues.apache.org/jira/secure/attachment/12934697/HIVE-20279.1.patch {color:red}ERROR:{color} -1 due to no test(s) being added or modified. {color:green}SUCCESS:{color} +1 due to 14868 tests passed Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/13087/testReport Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/13087/console Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-13087/ Messages: {noformat} Executing org.apache.hive.ptest.execution.TestCheckPhase Executing org.apache.hive.ptest.execution.PrepPhase Executing org.apache.hive.ptest.execution.YetusPhase Executing org.apache.hive.ptest.execution.ExecutionPhase Executing org.apache.hive.ptest.execution.ReportingPhase {noformat} This message is automatically generated. ATTACHMENT ID: 12934697 - PreCommit-HIVE-Build > HiveContextAwareRecordReader slows down Druid Scan queries. > ------------------------------------------------------------ > > Key: HIVE-20279 > URL: https://issues.apache.org/jira/browse/HIVE-20279 > Project: Hive > Issue Type: Improvement > Reporter: Nishant Bangarwa > Assignee: Nishant Bangarwa > Priority: Major > Attachments: HIVE-20279.1.patch, HIVE-20279.patch, scan2.svg > > > HiveContextAwareRecordReader add lots of overhead for Druid Scan Queries. > See attached flame graph. > Looks like the operations for checking for existence of footer/header buffer > takes most of time For druid and other storage handlers that do not have > footer buffer we should skip the logic for checking the existence for storage > handlers atleast. -- This message was sent by Atlassian JIRA (v7.6.3#76005)