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Posted to common-issues@hadoop.apache.org by "Yulei Li (JIRA)" <ji...@apache.org> on 2016/10/14 01:41:20 UTC
[jira] [Work started] (HADOOP-13618) IllegalArgumentException when
accessing Swift object with name containing space character
[ https://issues.apache.org/jira/browse/HADOOP-13618?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Work on HADOOP-13618 started by Yulei Li.
-----------------------------------------
> 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
> Assignee: Yulei Li
> Fix For: 3.0.0-alpha2
>
> Attachments: HADOOP-13618.patch, avro_test.zip
>
>
> 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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