Yu Li created HBASE-14457:
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Summary: Umbrella: Improve Multiple WAL for production usage
Key: HBASE-14457
URL: https://issues.apache.org/jira/browse/HBASE-14457
Project: HBase
Issue Type: Umbrella
Affects Versions: 2.0.0, 3.0.0
Reporter: Yu Li
Assignee: Yu Li
HBASE-5699 proposed the idea to run with multiple WAL in regionserver and did a
great initial work there, but when trying to use it in our production cluster,
we still found several issues to resolve, like tracking multiple WAL paths in
replication (HBASE-6617), fixing UT with multiwal provider (HBASE-14411),
introducing a namespace-based strategy for RegionGroupingProvider
(HBASE-14456), etc. This is an umbrella including(but not limited of) all these
works and efforts to make multiple wal ready for production usage and give user
a clear picture about it.
Besides the developing works done, I'd also like to share some scenarios and
testing/online data in this JIRA about our usage/performance of multiple wal,
to(hopefully) help people better judge whether to enable multiple wal or not in
their own cluster and what they might gain.
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