Dylan Hutchison wrote:
You can configure HDFS to use the RawLocalFileSystem class forfile://
> URIs which is what is done for a majority of the integration tests. Beware
> that you configure the RawLocalFileSystem as the ChecksumFileSystem
> (default forfile://) will fail miserably around WAL recovery.
>
> https://github.com/apache/accumulo/blob/master/test/src/main
> /java/org/apache/accumulo/test/BulkImportVolumeIT.java#L61
>
>
Hi Josh, are you saying that the ChecksumFileSystem is required or
forbidden for WAL recovery? Looking at the Hadoop code it seems that
LocalFileSystem wraps around a RawLocalFileSystem to provide checksum
capabilities. Is that right?
Sorry I wasn't clearer: forbidden. If you use the RawLocalFileSystem and
you should not see any issues. If you use the ChecksumFileSystem (which
is the default) and you *will* see issues.
