We need a tool to verify (and repair) HBase much like fsck
[hbase] When split parent regions are cleaned up, not all the columns are deleted
NPE on failed open of region
[hbase] HStoreFile.writeSplitInfo should just call HStoreFile.Reference.write
[hbase] restructure how HBase lays out files in the file system
Add to filesystem info needed to rebuild .META.
Fixup script that scans .META., report holes if any and then finds dropped regions in fs if they are present (loading them if asked)
Tool to regenerate an hbase table from the data files