Steve Yang created HADOOP-13618:
-----------------------------------
Summary: IllegalArgumentException when accessing Swift object with
name containing space character
Key: HADOOP-13618
URL: https://issues.apache.org/jira/browse/HADOOP-13618
Project: Hadoop Common
Issue Type: Bug
Components: fs/swift
Affects Versions: 2.6.0
Environment: Linux EL6
Reporter: Steve Yang
We are using Spark and hadoop-openstack-2.6.0.jar
(compile('org.apache.hadoop:hadoop-openstack:2.6.0')) to access Oracle Storage
Service which is Swift-based:
DataFrame df =
hiveCtx.read().format("com.databricks.spark.csv").option(...).load(objectName);
When accessing a Swift URL like "swift://Linda.oracleswift/non-matching
records.csv" where the object name "non-matching records.csv" contains a space
character, the following exception is thrown:
2016-08-23 15:56:03 DEBUG SwiftNativeFileSystem:126 - SwiftFileSystem
initialized
java.lang.IllegalArgumentException: Illegal character in path at index 13:
/non-matching records.csv
at java.net.URI.create(URI.java:859)
at
org.apache.hadoop.fs.swift.util.SwiftObjectPath.<init>(SwiftObjectPath.java:59)
at
org.apache.hadoop.fs.swift.util.SwiftObjectPath.fromPath(SwiftObjectPath.java:183)
at
org.apache.hadoop.fs.swift.util.SwiftObjectPath.fromPath(SwiftObjectPath.java:145)
at
org.apache.hadoop.fs.swift.snative.SwiftNativeFileSystemStore.toObjectPath(SwiftNativeFileSystemStore.java:434)
at
org.apache.hadoop.fs.swift.snative.SwiftNativeFileSystemStore.getObjectMetadata(SwiftNativeFileSystemStore.java:211)
at
org.apache.hadoop.fs.swift.snative.SwiftNativeFileSystemStore.getObjectMetadata(SwiftNativeFileSystemStore.java:181)
at
org.apache.hadoop.fs.swift.snative.SwiftNativeFileSystem.getFileStatus(SwiftNativeFileSystem.java:173)
at org.apache.hadoop.fs.Globber.getFileStatus(Globber.java:64)
at org.apache.hadoop.fs.Globber.doGlob(Globber.java:272)
at org.apache.hadoop.fs.Globber.glob(Globber.java:151)
at org.apache.hadoop.fs.FileSystem.globStatus(FileSystem.java:1653)
at
org.apache.hadoop.mapred.FileInputFormat.singleThreadedListStatus(FileInputFormat.java:259)
...
Apparently it is complaining about the space character. However, checking the
debug messages earlier before this error is raised we can see:
2016-08-23 15:56:03 DEBUG SwiftNativeFileSystem:122 - Initializing
SwiftNativeFileSystem against URI
swift://Linda.oracleswift/non-matching%20records.csv and working dir
swift://Linda.oracleswift/user/syang
2016-08-23 15:56:03 DEBUG RestClientBindings:141 - Filesystem
swift://Linda.oracleswift/non-matching%20records.csv is using configuration
keys fs.swift.service.oracleswift
...
The space character has already been encoded into "%20" and so it seems the
Swift URL enters into SwiftNativeFileSystem is properly encoded.
Because of this error any Swift object with file name contains space character
(and may be slash '/' character as well?) cannot be accessed.
As an additional data point, if we first encode the object name("non-matching
records.csv"=>"non-matching%20records.csv") before giving it to OpenStack Swift
API, a different error is raised. This time somehow the path separator '/'
after the container name 'Linda' got encoded by SwiftNativeFileSystemStore:
2016-08-23 10:56:41 DEBUG SwiftRestClient:1731 - Status code = 400
2016-08-23 10:56:41 DEBUG SwiftRestClient:1445 - Method HEAD on
https://storage.oraclecorp.com/v1/Storage-dfisher/Linda%2Fnon-matching%20records.csv
failed, status code: 400, status line: HTTP/1.1 400 Bad Request
BadRequest: Bad request against
https://storage.oraclecorp.com/v1/Storage-dfisher/Linda%2Fnon-matching%20records.csv
HEAD
https://storage.oraclecorp.com/v1/Storage-dfisher/Linda%2Fnon-matching%20records.csv
=> 400
at
org.apache.hadoop.fs.swift.http.SwiftRestClient.buildException(SwiftRestClient.java:1456)
at
org.apache.hadoop.fs.swift.http.SwiftRestClient.perform(SwiftRestClient.java:1403)
at
org.apache.hadoop.fs.swift.http.SwiftRestClient.headRequest(SwiftRestClient.java:1016)
at
org.apache.hadoop.fs.swift.snative.SwiftNativeFileSystemStore.stat(SwiftNativeFileSystemStore.java:257)
at
org.apache.hadoop.fs.swift.snative.SwiftNativeFileSystemStore.getObjectMetadata(SwiftNativeFileSystemStore.java:212)
at
org.apache.hadoop.fs.swift.snative.SwiftNativeFileSystemStore.getObjectMetadata(SwiftNativeFileSystemStore.java:181)
at
org.apache.hadoop.fs.swift.snative.SwiftNativeFileSystem.getFileStatus(SwiftNativeFileSystem.java:173)
So here it always error out whether the Swift object name is URL-encoded or not.
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