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From "Sirianni, Eric" <Eric.Siria...@netapp.com>
Subject HBase and HDFS append()
Date Thu, 24 Oct 2013 14:01:38 GMT
I am aware of the history of HBase and HDFS "append" and have read the various blog posts and
JIRAs.  In particular:
            https://issues.apache.org/jira/browse/HBASE-5676
https://issues.apache.org/jira/browse/HDFS-3120

My understanding is that HBase requires "durable sync" capabilities of HDFS (i.e. hflush()
hsync()), but does *not* require file append capabilities.

I'm looking for a quick confirmation of my understanding *in a Hadoop 2.x context*.

In an HDFS 2.x environment, will HBase function properly with 'dfs.support.append' set to
FALSE?

Eric

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