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https://issues.apache.org/jira/browse/DRILL-5704?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16113769#comment-16113769
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Sorabh Hamirwasia commented on DRILL-5704:
------------------------------------------
With this PR the error message on client side now will be as below, but it can
vary based on FileSystem implementation of liststatus.
0: jdbc:drill:drillbit=10.10.100.164> SELECT * from sys.drillbits;
Error: RESOURCE ERROR: Failed to create schema tree.
_IOException: Error getting user info for current user, anonymous_
[Error Id: c438d923-21d5-4465-b8bf-0fb4fc00d026 on qa-node164.qa.lab:31010]
(state=,code=0)
> Improve error message on client side when queries fail with "Failed to create
> schema tree." when Impersonation is enabled and logins are anonymous
> --------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: DRILL-5704
> URL: https://issues.apache.org/jira/browse/DRILL-5704
> Project: Apache Drill
> Issue Type: Improvement
> Reporter: Sorabh Hamirwasia
> Assignee: Sorabh Hamirwasia
> Fix For: 1.12.0
>
>
> Reported by [~agirish]
> When username is not specified then Drill set's the session user as anonymous
> if impersonation is enabled. During query execution Drill tries to build
> schema tree and as part of that it validates if the user has access to the
> workspace or not by using FileClient Api liststatus which verifies the user
> from the OS user. Since impersonation is only enabled here without
> authentication and we don't specify any user in connection string, Drill will
> use default user which is "anonymous" and pass that to check workspace
> permission which will fail as node doesn't have any valid user with that name.
> {code:java}
> Caused by: java.io.IOException: Error getting user info for current user,
> anonymous
> ......
> ......
> at
> org.apache.drill.exec.store.dfs.DrillFileSystem.listStatus(DrillFileSystem.java:523)
> ~[drill-java-exec-1.9.0-SNAPSHOT.jar:1.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.store.dfs.WorkspaceSchemaFactory.accessible(WorkspaceSchemaFactory.java:157)
> ~[drill-java-exec-1.9.0-SNAPSHOT.jar:1.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.store.dfs.FileSystemSchemaFactory$FileSystemSchema.<init>(FileSystemSchemaFactory.java:78)
> ~[drill-java-exec-1.9.0-SNAPSHOT.jar:1.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.store.dfs.FileSystemSchemaFactory.registerSchemas(FileSystemSchemaFactory.java:65)
> ~[drill-java-exec-1.9.0-SNAPSHOT.jar:1.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.store.dfs.FileSystemPlugin.registerSchemas(FileSystemPlugin.java:150)
> ~[drill-java-exec-1.9.0-SNAPSHOT.jar:1.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.store.StoragePluginRegistryImpl$DrillSchemaFactory.registerSchemas(StoragePluginRegistryImpl.java:365)
> ~[drill-java-exec-1.9.0-SNAPSHOT.jar:1.9.0-SNAPSHOT]
> at
> org.apache.drill.exec.store.SchemaTreeProvider.createRootSchema(SchemaTreeProvider.java:72)
> [drill-java-exec-1.9.0-SNAPSHOT.jar:1.9.0-SNAPSHOT]
> ... 10 common frames omitted
> {code}
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