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From "Duo Xu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-14827) Potential memory leak on REST server if state-full scanner is not deleted
Date Tue, 17 Nov 2015 22:38:11 GMT
Duo Xu created HBASE-14827:
------------------------------

             Summary: Potential memory leak on REST server if state-full scanner is not deleted
                 Key: HBASE-14827
                 URL: https://issues.apache.org/jira/browse/HBASE-14827
             Project: HBase
          Issue Type: Bug
            Reporter: Duo Xu


Currently when people are using REST APIs to create state-full scanner, do scan with scanner
id and delete scanner. However, if the clients never call delete scanner or if the clients
are on cloud VMs and VMs get reboot before delete requests are sent, the resources associated
with the scanner will never be released on the REST server, "hbase.client.scanner.timeout.period"
will release the resources on region server side though.

So this will cause memory leak on REST server in some cases.



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