[jira] [Updated] (SPARK-23404) When the underlying buffers are already direct, we should copy them to the heap memory

[ https://issues.apache.org/jira/browse/SPARK-23404?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] liuxian updated SPARK-23404: Summary: When the underlying buffers are already direct, we should copy them to the heap memory (was: When

[jira] [Updated] (SPARK-23404) When the underlying buffers are already direct, we should copy them to the heap memory

[ https://issues.apache.org/jira/browse/SPARK-23404?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] liuxian updated SPARK-23404: Description: If the memory mode is _ON_HEAP_,when the underlying buffers are direct, we should copy them to