sodonnel opened a new pull request, #4384:
URL: https://github.com/apache/hadoop/pull/4384

   ### Description of PR
   
   In a cluster with a lot of small files, we encountered a case where fsck was 
very slow. I believe it is due to contention with many other threads reading / 
writing data on the cluster.
   
   Sometimes fsck does not report any progress for more than 60 seconds and the 
client times out. Currently the connect and read timeout are hardcoded to 60 
seconds. This change is to make them configurable.
   
   ### How was this patch tested?
   
   Tested manually by inserting a sleep into the fsck logic in the NN. I then 
adjusted the read timeout to validate I got a timeout or not depending on the 
timeout setting.


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