HyukjinKwon commented on a change in pull request #27690: [SPARK-21514][SQL]
Added a new option to use non-blobstore storage when writing into blobstore
storage
URL: https://github.com/apache/spark/pull/27690#discussion_r395530390
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala
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@@ -751,6 +751,20 @@ object SQLConf {
.checkValues(HiveCaseSensitiveInferenceMode.values.map(_.toString))
.createWithDefault(HiveCaseSensitiveInferenceMode.NEVER_INFER.toString)
+ val HIVE_BLOBSTORE_SUPPORTED_SCHEMES =
+ buildConf("spark.sql.hive.blobstore.supported.schemes")
+ .doc("Comma-separated list of supported blobstore schemes.")
Review comment:
Where does this feature to change the staging directory to, HDFS? Can you
fix the documentation to describe what the configuration does? Seems like it
writes the data first in staging dir, and move it to S3 because renaming on S3
is expensive.
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