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Subject [GitHub] [incubator-hudi] praddy commented on issue #588: Has anyone used hudi with AWS EMR and EMRFS on s3?
Date Wed, 26 Feb 2020 13:38:41 GMT
praddy commented on issue #588: Has anyone used hudi with AWS EMR and EMRFS on s3?
URL: https://github.com/apache/incubator-hudi/issues/588#issuecomment-591430119
 
 
   > PERFORMANCE BUG:
   > 
   > the metadata list performance is likely causing performance issues with hudi.
   > 
   > ```
   > scala> stopwatch({  sql("SELECT * FROM ap_invoices_all_compacted_s3").count})
   > Elapsed time: 1m 55.078473113s                                                  
   > res2: Long = xxxxxxxxxxxx
   > 
   > scala> stopwatch({  sql("SELECT * FROM ap_invoices_all_compacted").count})  --
this is the exact same table in hdfs
   > Elapsed time: 6.581217052s                                                      
   > res3: Long = xxxxxxxxxxx
   > ```
   
   Was this performance issue fixed? I am asking because we are facing this performance problem
still in release-0.5.1-incubatinb

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