[jira] [Assigned] (SPARK-25069) Using UnsafeAlignedOffset to make the entire record of 8 byte Items aligned like which is used in UnsafeExternalSorter
[ https://issues.apache.org/jira/browse/SPARK-25069?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Wenchen Fan reassigned SPARK-25069: --- Assignee: eaton > Using UnsafeAlignedOffset to make the entire record of 8 byte Items aligned > like which is used in UnsafeExternalSorter > --- > > Key: SPARK-25069 > URL: https://issues.apache.org/jira/browse/SPARK-25069 > Project: Spark > Issue Type: Improvement > Components: Shuffle >Affects Versions: 2.3.1 >Reporter: eaton >Assignee: eaton >Priority: Major > Fix For: 2.4.0 > > > The class of UnsafeExternalSorter used UnsafeAlignedOffset to make the entire > record of 8 byte Items aligned, but ShuffleExternalSorter not. > The SPARC platform requires this because using a 4 byte Int for record > lengths causes the entire record of 8 byte Items to become misaligned by 4 > bytes. Using a 8 byte long for record length keeps things 8 byte aligned. -- This message was sent by Atlassian JIRA (v7.6.3#76005) - To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org
[jira] [Assigned] (SPARK-25069) Using UnsafeAlignedOffset to make the entire record of 8 byte Items aligned like which is used in UnsafeExternalSorter
[ https://issues.apache.org/jira/browse/SPARK-25069?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Apache Spark reassigned SPARK-25069: Assignee: (was: Apache Spark) > Using UnsafeAlignedOffset to make the entire record of 8 byte Items aligned > like which is used in UnsafeExternalSorter > --- > > Key: SPARK-25069 > URL: https://issues.apache.org/jira/browse/SPARK-25069 > Project: Spark > Issue Type: Improvement > Components: Shuffle >Affects Versions: 2.3.1 >Reporter: eaton >Priority: Major > > The class of UnsafeExternalSorter used UnsafeAlignedOffset to make the entire > record of 8 byte Items aligned, but ShuffleExternalSorter not. > The SPARC platform requires this because using a 4 byte Int for record > lengths causes the entire record of 8 byte Items to become misaligned by 4 > bytes. Using a 8 byte long for record length keeps things 8 byte aligned. -- This message was sent by Atlassian JIRA (v7.6.3#76005) - To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org
[jira] [Assigned] (SPARK-25069) Using UnsafeAlignedOffset to make the entire record of 8 byte Items aligned like which is used in UnsafeExternalSorter
[ https://issues.apache.org/jira/browse/SPARK-25069?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Apache Spark reassigned SPARK-25069: Assignee: Apache Spark > Using UnsafeAlignedOffset to make the entire record of 8 byte Items aligned > like which is used in UnsafeExternalSorter > --- > > Key: SPARK-25069 > URL: https://issues.apache.org/jira/browse/SPARK-25069 > Project: Spark > Issue Type: Improvement > Components: Shuffle >Affects Versions: 2.3.1 >Reporter: eaton >Assignee: Apache Spark >Priority: Major > > The class of UnsafeExternalSorter used UnsafeAlignedOffset to make the entire > record of 8 byte Items aligned, but ShuffleExternalSorter not. > The SPARC platform requires this because using a 4 byte Int for record > lengths causes the entire record of 8 byte Items to become misaligned by 4 > bytes. Using a 8 byte long for record length keeps things 8 byte aligned. -- This message was sent by Atlassian JIRA (v7.6.3#76005) - To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org
