[GitHub] [incubator-hudi] vinothchandar edited a comment on issue #800: Performance tuning

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vinothchandar edited a comment on issue #800: Performance tuning
URL: https://github.com/apache/incubator-hudi/issues/800#issuecomment-514140879
 
 
   That job pretty much just writes out parquet (or versions parquet files if you have updates). From what I see single tasks are gc-ing for hours when though the input is more or less 7M records or so. I have seen similar issue (not this bad though) caused on yarn due to interference from other jobs or yarn not blacklisting a bad host.. 
   
   As a next step, can we try configuring a larger heap (say double it) or obtain a heapdump of such a process and we can see whats going on (i.e if there is a leak)

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