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Posted to dev@hbase.apache.org by "Eshcar Hillel (JIRA)" <ji...@apache.org> on 2015/05/20 08:58:00 UTC

[jira] [Created] (HBASE-13719) Asynchronous scanner -- cache size-in-bytes bug fix

Eshcar Hillel created HBASE-13719:
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             Summary: Asynchronous scanner -- cache size-in-bytes bug fix
                 Key: HBASE-13719
                 URL: https://issues.apache.org/jira/browse/HBASE-13719
             Project: HBase
          Issue Type: Bug
            Reporter: Eshcar Hillel


Hbase Streaming Scan is a feature recently added to trunk.
In this feature, an asynchronous scanner pre-loads data to the cache based on its size (both row count and size in bytes). In one of the locations where the scanner polls an item from the cache, the variable holding the estimated byte size of the cache is not updated. This affects the decision of when to load the next batch of data.

A bug fix patch is attached - it comprises only local changes to the ClientAsyncPrefetchScanner.java file.



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