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Posted to issues@hbase.apache.org by "Ray Mattingly (Jira)" <ji...@apache.org> on 2026/10/06 23:35:00 UTC

[jira] [Created] (HBASE-30467) Scanner close requests should be exempt from quotas

Ray Mattingly created HBASE-30467:
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             Summary: Scanner close requests should be exempt from quotas
                 Key: HBASE-30467
                 URL: https://issues.apache.org/jira/browse/HBASE-30467
             Project: HBase
          Issue Type: Improvement
    Affects Versions: 2.6.3
            Reporter: Ray Mattingly


Scanner close requests can be throttled by HBase Quotas like any other client RPC. This opens up the door for a worker to accidentally cause server-side memory leaks of scanners when they are hitting their quotas. I observed this phenomenon at my day job on a lightweight fork of 2.6.3, where we run hundreds of HBase clusters and use quotas heavily to ensure quality of service.



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