Repository: spark Updated Branches: refs/heads/branch-1.4 cdfa388dd -> b2684557f
[SPARK-8437] [DOCS] Using directory path without wildcard for filename slow for large number of files with wholeTextFiles and binaryFiles Note that 'dir/*' can be more efficient in some Hadoop FS implementations that 'dir/' Author: Sean Owen <so...@cloudera.com> Closes #7036 from srowen/SPARK-8437 and squashes the following commits: 0e813ae [Sean Owen] Note that 'dir/*' can be more efficient in some Hadoop FS implementations that 'dir/' (cherry picked from commit 5d30eae56051c563a8427f330b09ef66db0a0d21) Signed-off-by: Andrew Or <and...@databricks.com> Project: http://git-wip-us.apache.org/repos/asf/spark/repo Commit: http://git-wip-us.apache.org/repos/asf/spark/commit/b2684557 Tree: http://git-wip-us.apache.org/repos/asf/spark/tree/b2684557 Diff: http://git-wip-us.apache.org/repos/asf/spark/diff/b2684557 Branch: refs/heads/branch-1.4 Commit: b2684557fa0d2ec14b7529324443c8154d81c348 Parents: cdfa388 Author: Sean Owen <so...@cloudera.com> Authored: Mon Jun 29 17:21:35 2015 -0700 Committer: Andrew Or <and...@databricks.com> Committed: Mon Jun 29 17:21:47 2015 -0700 ---------------------------------------------------------------------- core/src/main/scala/org/apache/spark/SparkContext.scala | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/spark/blob/b2684557/core/src/main/scala/org/apache/spark/SparkContext.scala ---------------------------------------------------------------------- diff --git a/core/src/main/scala/org/apache/spark/SparkContext.scala b/core/src/main/scala/org/apache/spark/SparkContext.scala index b4c0d4c..f8af710 100644 --- a/core/src/main/scala/org/apache/spark/SparkContext.scala +++ b/core/src/main/scala/org/apache/spark/SparkContext.scala @@ -824,6 +824,8 @@ class SparkContext(config: SparkConf) extends Logging with ExecutorAllocationCli * }}} * * @note Small files are preferred, large file is also allowable, but may cause bad performance. + * @note On some filesystems, `.../path/*` can be a more efficient way to read all files in a directory + * rather than `.../path/` or `.../path` * * @param minPartitions A suggestion value of the minimal splitting number for input data. */ @@ -871,9 +873,11 @@ class SparkContext(config: SparkConf) extends Logging with ExecutorAllocationCli * (a-hdfs-path/part-nnnnn, its content) * }}} * - * @param minPartitions A suggestion value of the minimal splitting number for input data. - * * @note Small files are preferred; very large files may cause bad performance. + * @note On some filesystems, `.../path/*` can be a more efficient way to read all files in a directory + * rather than `.../path/` or `.../path` + * + * @param minPartitions A suggestion value of the minimal splitting number for input data. */ @Experimental def binaryFiles( --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@spark.apache.org For additional commands, e-mail: commits-h...@spark.apache.org
