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https://issues.apache.org/jira/browse/KUDU-2581?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hexin updated KUDU-2581:
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Description:
Sometimes we have a lot of scan, which may excess the soft memory limit. The
greater the excess, the higher the chance of causing throttling for writing. We
should achieve a method that rejecting the scan request if it has reached the
soft memory limit or the scanner num has reached the threshold. The threshold
should be estimated by the actual memory of the system running the kudu. By
this way，the system can provide more space for writing.
was:Sometimes we have a lot of scan, which maybe causes the soft memory
limit. We should achieve a method that rejecting the scan request if it has
reached the soft memory limit or the scanner num has reached the threshold. The
threshold is estimated by the actual memory of the system running the kudu.
> Reject the scan request if it has reached the num or memory threshold
> ---------------------------------------------------------------------
>
> Key: KUDU-2581
> URL: https://issues.apache.org/jira/browse/KUDU-2581
> Project: Kudu
> Issue Type: New Feature
> Components: tserver
> Affects Versions: NA
> Reporter: Hexin
> Priority: Major
> Fix For: NA
>
>
> Sometimes we have a lot of scan, which may excess the soft memory limit. The
> greater the excess, the higher the chance of causing throttling for writing.
> We should achieve a method that rejecting the scan request if it has reached
> the soft memory limit or the scanner num has reached the threshold. The
> threshold should be estimated by the actual memory of the system running the
> kudu. By this way，the system can provide more space for writing.
>
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