[GitHub] [incubator-hudi] lamber-ken commented on issue #1528: [SUPPORT] Issue while writing to HDFS via hudi. Only `/.hoodie` folder is written.

[GitBox <gi...@apache.org>]

lamber-ken commented on issue #1528:
URL: https://github.com/apache/incubator-hudi/issues/1528#issuecomment-617028414


   hi @jenu9417, default parallelism is `1500`, you can adjust according to the actual situation.
   ```
   // parallelisms
   "hoodie.insert.shuffle.parallelism" -> "10",
   "hoodie.upsert.shuffle.parallelism" -> "10",
   "hoodie.delete.shuffle.parallelism" -> "10",
   "hoodie.bulkinsert.shuffle.parallelism" -> "10"
   
   
   // demo
   export SPARK_HOME=/work/BigData/install/spark/spark-2.4.4-bin-hadoop2.7
   ${SPARK_HOME}/bin/spark-shell \
       --driver-memory 6G \
       --packages org.apache.hudi:hudi-spark-bundle_2.11:0.5.1-incubating,org.apache.spark:spark-avro_2.11:2.4.4 \
       --conf 'spark.serializer=org.apache.spark.serializer.KryoSerializer'
   
   val tableName = "hudi_mor_table"
   val basePath = "file:///tmp/hudi_mor_tablen"
   
   val hudiOptions = Map[String,String](
     "hoodie.insert.shuffle.parallelism" -> "10",
     "hoodie.upsert.shuffle.parallelism" -> "10",
     "hoodie.delete.shuffle.parallelism" -> "10",
     "hoodie.bulkinsert.shuffle.parallelism" -> "10",
     "hoodie.datasource.write.recordkey.field" -> "key",
     "hoodie.datasource.write.partitionpath.field" -> "dt", 
     "hoodie.table.name" -> tableName,
     "hoodie.datasource.write.precombine.field" -> "timestamp",
     "hoodie.table.base.file.format" -> "PARQUET"
   )
   
   val inputDF = spark.range(1, 5).
      withColumn("key", $"id").
      withColumn("data", lit("data")).
      withColumn("timestamp", current_timestamp()).
      withColumn("dt", date_format($"timestamp", "yyyy-MM-dd"))
   
   inputDF.write.format("org.apache.hudi").
     options(hudiOptions).
     mode("Overwrite").
     save(basePath)
   
   spark.read.format("org.apache.hudi").load(basePath + "/*/*").show();
   ```
   
   


----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

For queries about this service, please contact Infrastructure at:
users@infra.apache.org