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fix the non-consistency for spark.rapids.sql.format.parquet.multiThreadedRead in RapidsConf.scala #875

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Sep 29, 2020
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fix the non-consistency for spark.rapids.sql.format.parquet.multiThreadedRead in RapidsConf.scala #875

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fixing spark.rapids.sql.format.parquet.multiThreadedRead.{maxNumFileP…
Sep 29, 2020
49b4031
fixing spark.rapids.sql.format.parquet.multiThreadedRead.{maxNumFileP…
Sep 29, 2020
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2 changes: 1 addition & 1 deletion docs/configs.md
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Original file line number Diff line number Diff line change
Expand Up @@ -59,7 +59,7 @@ Name | Description | Default Value
<a name="sql.format.orc.read.enabled"></a>spark.rapids.sql.format.orc.read.enabled|When set to false disables orc input acceleration|true
<a name="sql.format.orc.write.enabled"></a>spark.rapids.sql.format.orc.write.enabled|When set to false disables orc output acceleration|true
<a name="sql.format.parquet.enabled"></a>spark.rapids.sql.format.parquet.enabled|When set to false disables all parquet input and output acceleration|true
<a name="sql.format.parquet.multiThreadedRead.enabled"></a>spark.rapids.sql.format.parquet.multiThreadedRead.enabled|When set to true, reads multiple small files within a partition more efficiently by reading each file in a separate thread in parallel on the CPU side before sending to the GPU. Limited by spark.rapids.sql.format.parquet.multiThreadedRead.numThreads and spark.rapids.sql.format.parquet.multiThreadedRead.maxNumFileProcessed|true
<a name="sql.format.parquet.multiThreadedRead.enabled"></a>spark.rapids.sql.format.parquet.multiThreadedRead.enabled|When set to true, reads multiple small files within a partition more efficiently by reading each file in a separate thread in parallel on the CPU side before sending to the GPU. Limited by spark.rapids.sql.format.parquet.multiThreadedRead.numThreads and spark.rapids.sql.format.parquet.multiThreadedRead.maxNumFilesParallel|true
<a name="sql.format.parquet.multiThreadedRead.maxNumFilesParallel"></a>spark.rapids.sql.format.parquet.multiThreadedRead.maxNumFilesParallel|A limit on the maximum number of files per task processed in parallel on the CPU side before the file is sent to the GPU. This affects the amount of host memory used when reading the files in parallel.|2147483647
<a name="sql.format.parquet.multiThreadedRead.numThreads"></a>spark.rapids.sql.format.parquet.multiThreadedRead.numThreads|The maximum number of threads, on the executor, to use for reading small parquet files in parallel. This can not be changed at runtime after the executor has started.|20
<a name="sql.format.parquet.read.enabled"></a>spark.rapids.sql.format.parquet.read.enabled|When set to false disables parquet input acceleration|true
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2 changes: 1 addition & 1 deletion sql-plugin/src/main/scala/com/nvidia/spark/rapids/RapidsConf.scala
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Expand Up @@ -482,7 +482,7 @@ object RapidsConf {
"by reading each file in a separate thread in parallel on the CPU side before " +
"sending to the GPU. Limited by " +
"spark.rapids.sql.format.parquet.multiThreadedRead.numThreads " +
"and spark.rapids.sql.format.parquet.multiThreadedRead.maxNumFileProcessed")
"and spark.rapids.sql.format.parquet.multiThreadedRead.maxNumFilesParallel")
.booleanConf
.createWithDefault(true)

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