Yishan Yang created HBASE-17437:
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Summary: Support specifying WAL directory to different directory
with different file system (For example: S3)
Key: HBASE-17437
URL: https://issues.apache.org/jira/browse/HBASE-17437
Project: HBase
Issue Type: Bug
Affects Versions: 1.2.4
Reporter: Yishan Yang
Fix For: 2.0.0, 1.2.5
Currently, the WAL and the StoreFiles need to be on the same FileSystem. Some
FileSystems (such as Amazon S3) don’t support append or consistent writes.
These two properties are imperative for the WAL in order to avoid loss of
writes. However, StoreFiles don’t necessarily need the same consistency
guarantees (since writes are cached locally and if writes fail, they can always
be replayed from the WAL).
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