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https://issues.apache.org/jira/browse/HBASE-17437?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yishan Yang updated HBASE-17437:
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Status: Patch Available (was: Open)
> 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
> Labels: patch
> Fix For: 2.0.0, 1.2.5
>
> Attachments: hbase-17437-branch-1.2.patch, hbase-17437-master.patch
>
>
> 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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