[ https://issues.apache.org/jira/browse/HADOOP-15985?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
lqjacklee updated HADOOP-15985: ------------------------------- Attachment: HADOOP-15985-1.patch > LightWeightGSet.computeCapacity() doesn't correctly account for CompressedOops > ------------------------------------------------------------------------------ > > Key: HADOOP-15985 > URL: https://issues.apache.org/jira/browse/HADOOP-15985 > Project: Hadoop Common > Issue Type: Improvement > Reporter: Roman Leventov > Priority: Minor > Attachments: HADOOP-15985-1.patch > > > In this line: > [https://github.com/apache/hadoop/blob/a55d6bba71c81c1c4e9d8cd11f55c78f10a548b0/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/LightWeightGSet.java#L391], > instead of checking if the platform is 32- or 64-bit, it should check if > Unsafe.ARRAY_OBJECT_INDEX_SCALE is 4 or 8. > The result is that on 64-bit platforms, when Compressed Oops are on, > LightWeightGSet is two times denser than it is configured to be. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org