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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