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From "Maksim Timonin (Jira)" <j...@apache.org>
Subject [jira] [Created] (IGNITE-15365) "KILL SCAN" doesn't cancel correctly queries on remote node.
Date Tue, 24 Aug 2021 09:46:00 GMT
Maksim Timonin created IGNITE-15365:
---------------------------------------

             Summary: "KILL SCAN" doesn't cancel correctly queries on remote node.
                 Key: IGNITE-15365
                 URL: https://issues.apache.org/jira/browse/IGNITE-15365
             Project: Ignite
          Issue Type: New Feature
            Reporter: Maksim Timonin


Currently KILL SCAN just removes query iterator from node, but doesn't send cancel cache query
request to every node. It leads wasting memory on nodes and exceptions like:

class org.apache.ignite.IgniteCheckedException: Received next page request after iterator
was removed. Consider increasing maximum number of stored iterators (see CacheConfiguration.getMaxQueryIteratorsCount()
configuration property).

 

see
 # QueryMXBeanImpl.CancelScan
 # KillComandsSQLTest#testCancelScanQuery



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