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Posted to reviews@spark.apache.org by GitBox <gi...@apache.org> on 2022/03/04 05:25:13 UTC
[GitHub] [spark] GabeChurch commented on pull request #32518: [SPARK-35383][CORE] Improve s3a magic committer support by inferring missing configs
GabeChurch commented on pull request #32518:
URL: https://github.com/apache/spark/pull/32518#issuecomment-1058840240
@dongjoon-hyun I'm curious, have you done any benchmarks for the magic s3 committer with ORC?
I've been testing with Spark 3.2 major and 3.3 fork on Kubernetes (couple TB writes) for awhile now and seeing worse performance when enabling the magic s3 committer. Probably worth noting that I'm partitioning, bucketing (1 col), and sorting on write.
Is magic committer simply a bad option for those of us utilizing ORC? Or maybe I'm missing something.
Property | Option
-- | --
spark.hadoop.fs.s3a.bucket.all.committer.magic.enabled | true
spark.hadoop.fs.s3a.committer.magic.enabled | true
spark.hadoop.fs.s3a.committer.name | magic
spark.hadoop.fs.s3a.experimental.input.fadvise | random
spark.hadoop.fs.s3a.impl | org.apache.hadoop.fs.s3a.S3AFileSystem
spark.hadoop.fs.s3a.readahead.range | 157810688
spark.hadoop.mapreduce.fileoutputcommitter.algorithm.version | 2
spark.hadoop.mapreduce.outputcommitter.factory.scheme.s3a | org.apache.hadoop.fs.s3a.commit.S3ACommitterFactory
spark.sql.hive.metastorePartitionPruning | True
spark.sql.orc.filterPushdown | True
spark.sql.parquet.output.committer.class | org.apache.spark.internal.io.cloud.BindingParquetOutputCommitter
spark.sql.sources.commitProtocolClass | org.apache.spark.internal.io.cloud.PathOutputCommitProtocol
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