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Posted to issues@drill.apache.org by "ASF GitHub Bot (JIRA)" <ji...@apache.org> on 2017/08/04 01:26:01 UTC
[jira] [Commented] (DRILL-5704) Improve error message on client
side when queries fail with "Failed to create schema tree." when
Impersonation is enabled and logins are anonymous
[ https://issues.apache.org/jira/browse/DRILL-5704?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16113768#comment-16113768 ]
ASF GitHub Bot commented on DRILL-5704:
---------------------------------------
GitHub user sohami opened a pull request:
https://github.com/apache/drill/pull/895
DRILL-5704: Improve error message on client side when queries fail wi…
…th "Failed to create schema tree." when Impersonation is enabled and logins are anonymous
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/sohami/drill DRILL-5704
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/drill/pull/895.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #895
----
commit 7950826cb1ae28c33007aac22834ca8f3b33846a
Author: Sorabh Hamirwasia <sh...@maprtech.com>
Date: 2017-08-04T01:23:02Z
DRILL-5704: Improve error message on client side when queries fail with "Failed to create schema tree." when Impersonation is enabled and logins are anonymous
----
> 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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