[HDFS-14379] WebHdfsFileSystem.toUrl double encodes characters

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 3.2.0
• Component/s: hdfs, hdfs-client
• Assignee: Boris Vulikh
• Reporter: Boris Vulikh
• Created: 19/Mar/19 11:41
• Updated: 30/Jul/19 23:31
• Resolved: 30/Jul/19 23:31

Description

When using DistCP over HTTPFS with data that contains Spark partitions, DistCP fails to access the partitioned parquet files since the "=" characters in file path gets double encoded:
"/test/spark/partition/year=2019/month=1/day=1"
to
"/test/spark/partition/year%253D2019/month%253D1/day%253D1"

This happens since fsPathItem containing the character '=' is encoded by URLEncoder.encode(fsPathItem, "UTF-8") to '%3D' and then encoded again by new Path(....) to '%253D'.

Issue Links

• contains: HDFS-14408 HttpFS handles paths with special charactes different than WebHdfs
• duplicates: HDFS-14323 Distcp fails in Hadoop 3.x when 2.x source webhdfs url has special characters in hdfs file path
• relates to: HDFS-14323 Distcp fails in Hadoop 3.x when 2.x source webhdfs url has special characters in hdfs file path