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https://issues.apache.org/jira/browse/HIVE-1895?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Carl Steinbach updated HIVE-1895:
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Issue Type: Bug (was: Improvement)
> Finish implementing MetaStore file system abstraction layer (MetaStoreFS and
> HiveMetaStoreFSImpl)
> -------------------------------------------------------------------------------------------------
>
> Key: HIVE-1895
> URL: https://issues.apache.org/jira/browse/HIVE-1895
> Project: Hive
> Issue Type: Bug
> Components: Metastore
> Affects Versions: 0.7.0
> Reporter: Carl Steinbach
>
> HIVE-1881 added MetaStoreFS which is a pluggable extension point for
> altering how the MetaStore interacts with the warehouse file system. This
> interface needs to be extended so that it is possible to route all MetaStore
> interaction with the warehouse file system through an implementation of this
> interface.
> {quote}
> The other problem I see is that the MetaStoreFS interface that this patch
> added is incomplete -
> it only defines a deleteDir() method. What about createDir(), isDir(), etc?
> It seems like any MetaStore
> code that directly references Hadoop's FileSystem class needs to get moved
> into HiveMetaStoreFsImpl.
> I don't think this needs to be done right away, but the problem with waiting
> is that any changes to MetaStoreFS
> will break classes that implement older versions of that interface. Since
> MetaStoreFS is a public API we
> need to get this done before it appears in an official release.
> {quote}
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