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Posted to issues@flink.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2019/12/03 11:12:00 UTC
[jira] [Updated] (FLINK-14936) Introduce
MemoryManager#computeMemorySize to calculate managed memory from a fraction
[ https://issues.apache.org/jira/browse/FLINK-14936?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
ASF GitHub Bot updated FLINK-14936:
-----------------------------------
Labels: pull-request-available (was: )
> Introduce MemoryManager#computeMemorySize to calculate managed memory from a fraction
> -------------------------------------------------------------------------------------
>
> Key: FLINK-14936
> URL: https://issues.apache.org/jira/browse/FLINK-14936
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Coordination
> Affects Versions: 1.10.0
> Reporter: Zhu Zhu
> Assignee: Zhu Zhu
> Priority: Major
> Labels: pull-request-available
>
> A MemoryManager#computeMemorySize(double fraction) is needed to calculate managed memory bytes from a fraction.
> It can be helpful for operators to get the memory size it can reserve and for further #reserveMemory. (Similar to #computeNumberOfPages).
> Here are two cases that may need this method in near future:
> 1. [Python operator memory management|https://lists.apache.org/thread.html/dd4dedeb9354c2ee559cd2f15629c719853915b5efb31a0eafee9361@%3Cdev.flink.apache.org%3E]
> 2. [Statebackend memory management|https://issues.apache.org/jira/browse/FLINK-14883]
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