One approach can be use some .tmp extension while writing. Once the write
is completed rename back to original file name. Also, reducer has to filter
out .tmp files.
This will ensure reducer will not pickup the partial files.
We do have the similar scenario where the a/m approach resolved the
Start the namenode[set fs.default.name to hdfs://192.168.1.101:9000] and
check your netstat report [netstat -nlp] to check which port and IP it is
binding. Ideally, 9000 should be bound to 192.168.1.101. If yes, configure
the same IP in slaves as well. Otw, we may need to revisit your configs
