Hi, Exit Code 143 happens due to multiple reasons and one of them is related to Memory/GC issues. Your default Mapper/reducer memory setting may not be sufficient to run the large data set. Thus, try setting up higher AM, MAP and REDUCER memory when a large yarn job is invoked.  For more please refer to this link. https://stackoverflow.com/questions/42972908/container-killed-by-the-applicationmaster-exit-code-is-...   Thanks AKR ... View more