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Rok Mihevc commented on ARROW-2696: ----------------------------------- This issue has been migrated to [issue #19087|https://github.com/apache/arrow/issues/19087] on GitHub. Please see the [migration documentation|https://github.com/apache/arrow/issues/14542] for further details. > [JAVA] enhance AllocationListener with an onFailedAllocation() call > ------------------------------------------------------------------- > > Key: ARROW-2696 > URL: https://issues.apache.org/jira/browse/ARROW-2696 > Project: Apache Arrow > Issue Type: Improvement > Components: Java > Reporter: Vanco Buca > Assignee: Vanco Buca > Priority: Major > Labels: pull-request-available > Fix For: 0.10.0 > > Time Spent: 2h > Remaining Estimate: 0h > > If an allocation fails, there might be an action taken by user code that will > free up some memory before the allocation can be retried again. This action > could include flushing some temporary buffers, getting rid of some > temporarily cached data, or even spilling state to disk. > Today's code is forced to catch out-of-memory exceptions, and then retry the > operation at a high level. A more elegant way to do this is to have a > callback whenever allocation failed. The callback would inform the allocator > whether or not to retry the allocation. > Since the allocator already has an AllocationListener, it makes sense to > enhance the existing listener with a new method. > {{The proposed signature is:}} > {{ boolean onAllocationFailed(long allocationSize);}} -- This message was sent by Atlassian Jira (v8.20.10#820010)