abstractdog commented on pull request #130:
URL: https://github.com/apache/tez/pull/130#issuecomment-857749102


   @tprelle : could you please try the latest commit? 
https://github.com/apache/tez/pull/130/commits/7ffc7832af935449554537b52b03e37120ac5799#diff-7ae0f0c86feac929c1490f9938cad5c25d46435d6f80de2455e64f11a49da1c8R44
   
   very interestingly, I reproduced the problem and I found that 
synchronization didn't solve the issue for me, and then I found that the 
problem is the default buffer size I choose regardless of codec type (128K), 
which led to errors in case of snappy
   
   with default 256K, everything worked fine
   
   could you please try this patch on your cluster to confirm if we're hitting 
the very same issue?
   
https://github.com/apache/tez/commit/7ffc7832af935449554537b52b03e37120ac5799.patch


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