When the count is 0 for mappers or reducers, a divide-by-zero exception is thrown. There are existing checks to error out when count < 0, which obviously doesn't handle the 0 case. This is causing the MRReliabilityTest to fail.
|Status||Resolved [ 5 ]||Closed [ 6 ]|
|Status||Patch Available [ 10002 ]||Resolved [ 5 ]|
|Resolution||Fixed [ 1 ]|
|Status||Patch Available [ 10002 ]||Open [ 1 ]|