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From "Li Pi (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-4608) HLog Compression
Date Mon, 17 Oct 2011 22:51:11 GMT
HLog Compression
----------------

                 Key: HBASE-4608
                 URL: https://issues.apache.org/jira/browse/HBASE-4608
             Project: HBase
          Issue Type: New Feature
            Reporter: Li Pi
            Assignee: Li Pi


The current bottleneck to HBase write speed is replicating the WAL appends across different
datanodes. We can speed up this process by compressing the HLog. Current plan involves using
a dictionary to compress table name, region id, cf name, and possibly other bits of repeated
data. Also, HLog format may be changed in other ways to produce a smaller HLog.

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