[ https://issues.apache.org/jira/browse/SPARK-9611?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Apache Spark reassigned SPARK-9611: ----------------------------------- Assignee: Yin Huai (was: Apache Spark) > UnsafeFixedWidthAggregationMap.destructAndCreateExternalSorter will add an > empty entry to if the map is empty. > -------------------------------------------------------------------------------------------------------------- > > Key: SPARK-9611 > URL: https://issues.apache.org/jira/browse/SPARK-9611 > Project: Spark > Issue Type: Sub-task > Components: SQL > Reporter: Yin Huai > Assignee: Yin Huai > Priority: Blocker > Fix For: 1.5.0 > > > There are two corner cases related to the destructAndCreateExternalSorter > (class UnsafeKVExternalSorter) returned by UnsafeFixedWidthAggregationMap. > 1. The constructor of UnsafeKVExternalSorter tries to first create a > UnsafeInMemorySorter based on the BytesToBytesMap of > UnsafeFixedWidthAggregationMap. However, when there is no entry in the map, > UnsafeInMemorySorter will throw an AssertionError because we are using the > size of map (0 at here) as the initialSize of UnsafeInMemorySorter, which is > not allowed. > 2. Once we fixes the first problem, when we use UnsafeKVExternalSorter's > KVSorterIterator loads data back, you can find there is one extra records, > which is an empty record. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org