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From "Eric Newton (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (GORA-117) gora hbase does not have a mechanism to set the caching on a scanner, which makes for poor performance on map/reduce jobs
Date Tue, 10 Apr 2012 21:37:16 GMT
gora hbase does not have a mechanism to set the caching on a scanner, which makes for poor
performance on map/reduce jobs
-------------------------------------------------------------------------------------------------------------------------

                 Key: GORA-117
                 URL: https://issues.apache.org/jira/browse/GORA-117
             Project: Apache Gora
          Issue Type: Bug
          Components: storage-hbase
            Reporter: Eric Newton


goraci runs a map/reduce job over all the data that it generates.  The hbase storage uses
a scanner that doesn't cache rows, which means every fetch requires an RPC call.  I experimented
with 

{noformat}
scan.setCache(1000);
{noformat}

and goraci Verify ran about 30x faster.

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