Josh Elser created HBASE-21062:
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Summary: WALFactory has misleading notion of "default"
Key: HBASE-21062
URL: https://issues.apache.org/jira/browse/HBASE-21062
Project: HBase
Issue Type: Bug
Components: wal
Reporter: Josh Elser
Assignee: Josh Elser
Fix For: 3.0.0, 2.0.2, 2.2.0, 2.1.1
In WALFactory, there is an enum {{Providers}} which has a list of supported
WALProvider implementations. In addition to list this, there is also a
{{defaultProvider}} (which the Configuration defaults to), that is meant to be
our "advertised" default WALProvider.
However, the implementation of {{getProviderClass}} in WALFactory doesn't
actually adhere to the value of this enum, instead *always* returning
AsyncFSWal if it can be loaded.
Having the default value in the enum but then overriding it in the
implementation of {{getProviderClass}} is silly and misleading.
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