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Posted to issues@flink.apache.org by "Jark Wu (Jira)" <ji...@apache.org> on 2020/01/07 10:41:00 UTC

[jira] [Assigned] (FLINK-15465) Avoid failing when required memory calculation not accurate in BinaryHashTable

     [ https://issues.apache.org/jira/browse/FLINK-15465?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jark Wu reassigned FLINK-15465:
-------------------------------

    Assignee: Jingsong Lee

> Avoid failing when required memory calculation not accurate in BinaryHashTable
> ------------------------------------------------------------------------------
>
>                 Key: FLINK-15465
>                 URL: https://issues.apache.org/jira/browse/FLINK-15465
>             Project: Flink
>          Issue Type: Bug
>          Components: Table SQL / Runtime
>            Reporter: Jingsong Lee
>            Assignee: Jingsong Lee
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.10.0
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> In BinaryHashBucketArea.insertToBucket.
> When BinaryHashTable.buildTableFromSpilledPartition."Build in memory hash table", it requires memory can put all records, if not, will fail.
> Because the linked hash conflict solution, the required memory calculation are not accurate, in this case, we should apply for insufficient memory from heap.
> And must be careful, the steal memory should not return to table.



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