[ https://issues.apache.org/jira/browse/HIVE-5091?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Phabricator updated HIVE-5091: ------------------------------ Attachment: HIVE-5091.D12249.1.patch omalley requested code review of "HIVE-5091 [jira] ORC files should have an option to pad stripes to the HDFS block boundaries". Reviewers: JIRA pad blocks out to the hdfs block boundaries With ORC stripes being large, if a stripe straddles an HDFS block, the locality of read is suboptimal. It would be good to add padding to ensure that stripes don't straddle HDFS blocks. TEST PLAN EMPTY REVISION DETAIL https://reviews.facebook.net/D12249 AFFECTED FILES common/src/java/org/apache/hadoop/hive/conf/HiveConf.java ql/src/java/org/apache/hadoop/hive/ql/io/orc/OrcFile.java ql/src/java/org/apache/hadoop/hive/ql/io/orc/OrcOutputFormat.java ql/src/java/org/apache/hadoop/hive/ql/io/orc/ReaderImpl.java ql/src/java/org/apache/hadoop/hive/ql/io/orc/WriterImpl.java ql/src/test/org/apache/hadoop/hive/ql/io/orc/TestNewIntegerEncoding.java ql/src/test/org/apache/hadoop/hive/ql/io/orc/TestOrcFile.java ql/src/test/org/apache/hadoop/hive/ql/io/orc/TestOrcNullOptimization.java MANAGE HERALD RULES https://reviews.facebook.net/herald/view/differential/ WHY DID I GET THIS EMAIL? https://reviews.facebook.net/herald/transcript/29277/ To: JIRA, omalley > ORC files should have an option to pad stripes to the HDFS block boundaries > --------------------------------------------------------------------------- > > Key: HIVE-5091 > URL: https://issues.apache.org/jira/browse/HIVE-5091 > Project: Hive > Issue Type: Bug > Reporter: Owen O'Malley > Assignee: Owen O'Malley > Attachments: HIVE-5091.D12249.1.patch > > > With ORC stripes being large, if a stripe straddles an HDFS block, the > locality of read is suboptimal. It would be good to add padding to ensure > that stripes don't straddle HDFS blocks. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira