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From "Karthik Ranganathan (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-6578) Make HDFS block size configurable for HBase WAL
Date Tue, 14 Aug 2012 00:31:38 GMT
Karthik Ranganathan created HBASE-6578:
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             Summary: Make HDFS block size configurable for HBase WAL
                 Key: HBASE-6578
                 URL: https://issues.apache.org/jira/browse/HBASE-6578
             Project: HBase
          Issue Type: Bug
          Components: regionserver
            Reporter: Karthik Ranganathan


Right now, because sync-on-block-close is enabled, HLog causes the disk to stall out on large
writes (esp when we cross block boundary).

We currently use 256MB blocks. The idea is that if we use smaller block sizes, we should be
able to spray the data across more disks (because of round robin scheduling) and this would
cause more uniform disk usage.

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