Josh Elser created HBASE-20952:
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Summary: Re-visit the WAL API
Key: HBASE-20952
URL: https://issues.apache.org/jira/browse/HBASE-20952
Project: HBase
Issue Type: Sub-task
Reporter: Josh Elser
Take a step back from the current WAL implementations and think about what an
HBase WAL API should look like. What are the primitive calls that we require to
guarantee durability of writes with a high degree of performance?
The API needs to take the current implementations into consideration. We should
also have a mind for what is happening in the Ratis LogService (but the
LogService should not dictate what HBase's WAL API looks like RATIS-272).
The API may be "OK" (or OK in a part). We need to also consider other methods
which were "bolted" on such as {{AbstractFSWAL}} and {{WALFileLengthProvider}}.
Other corners of "WAL use" (like the {{WALSplitter}} should also be looked at
to use WAL-APIs only).
We also need to make sure that adequate interface audience and stability
annotations are chosen.
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