Blocker Description
For blocks with zero size, Namenode prints following warning :
2007-09-26 17:13:04,620 WARN org.apache.hadoop.fs.FSNamesystem: blockCrcInfo(): blk_-3329852458225636700 could not be found in blocks for /user/rangadi/filename .
Fortunately this not harmful. But should be fixed. I think this should go into 0.14.2. Fix is simple.