Todd Lipcon created KUDU-1835:
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Summary: Support compression of the WAL
Key: KUDU-1835
URL: https://issues.apache.org/jira/browse/KUDU-1835
Project: Kudu
Issue Type: Improvement
Components: log, perf
Reporter: Todd Lipcon
Assignee: Todd Lipcon
In some workloads, particularly those which get good compression rates of the
underlying data (eg via dictionary coding), the WAL becomes a big bottleneck
for write performance. In addition, the large size of WALs can often mean that
old WALs get GCed rapidly and cause lagging replicas to get evicted after only
a temporary bout of slowness. Making WALs smaller would mean that we can retain
more history without the cost of disk space.
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