Fetching large numbers of columns is slow outside of HDFS
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Key: HBASE-1141
URL: https://issues.apache.org/jira/browse/HBASE-1141
Project: Hadoop HBase
Issue Type: Bug
Affects Versions: 0.20.0
Reporter: Jonathan Gray
Fix For: 0.20.0
While working on a Cell cache, we have found during random-read tests that the
number of columns has an enormous impact on performance. Accounting for
increased HDFS access time, there is still a great deal of time being spent
coming out of the Region and then across the wire to HTable.
Erik Holstad has done this testing and will post some of his results here when
completed.
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