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From "Li Lu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-12563) Updated utility to create/modify token files
Date Mon, 09 May 2016 23:32:13 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-12563?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15277321#comment-15277321

Li Lu commented on HADOOP-12563:

I noticed the following errors when running tez on our trunk code:
2016-05-09 16:12:18,733 [ERROR] [main] |app.DAGAppMaster|: Error starting DAGAppMaster
java.io.IOException: Exception reading /tmp/hadoop-llu/nm-local-dir/usercache/llu/appcache/application_1462833671675_0001/container_e03_1462833671675_0001_01_000001/container_tokens
        at org.apache.hadoop.security.Credentials.readTokenStorageFile(Credentials.java:197)
        at org.apache.hadoop.security.UserGroupInformation.loginUserFromSubject(UserGroupInformation.java:789)
        at org.apache.hadoop.security.UserGroupInformation.getLoginUser(UserGroupInformation.java:748)
        at org.apache.hadoop.security.UserGroupInformation.getCurrentUser(UserGroupInformation.java:621)
        at org.apache.tez.dag.app.DAGAppMaster.main(DAGAppMaster.java:2345)
Caused by: java.io.IOException: Unknown version 1 in token storage.
        at org.apache.hadoop.security.Credentials.readTokenStorageStream(Credentials.java:215)
        at org.apache.hadoop.security.Credentials.readTokenStorageFile(Credentials.java:194)
        ... 4 more

Both Tez and Hadoop are from the latest master/trunk.

Looks like we introduced some incompatible changes in this JIRA? I marked this JIRA as an
incompatible change for now. 

> Updated utility to create/modify token files
> --------------------------------------------
>                 Key: HADOOP-12563
>                 URL: https://issues.apache.org/jira/browse/HADOOP-12563
>             Project: Hadoop Common
>          Issue Type: New Feature
>    Affects Versions: 3.0.0
>            Reporter: Allen Wittenauer
>            Assignee: Matthew Paduano
>             Fix For: 3.0.0
>         Attachments: HADOOP-12563.01.patch, HADOOP-12563.02.patch, HADOOP-12563.03.patch,
HADOOP-12563.04.patch, HADOOP-12563.05.patch, HADOOP-12563.06.patch, HADOOP-12563.07.patch,
HADOOP-12563.07.patch, HADOOP-12563.08.patch, HADOOP-12563.09.patch, HADOOP-12563.10.patch,
HADOOP-12563.11.patch, HADOOP-12563.12.patch, HADOOP-12563.13.patch, HADOOP-12563.14.patch,
HADOOP-12563.15.patch, HADOOP-12563.16.patch, dtutil-test-out, example_dtutil_commands_and_output.txt,
> hdfs fetchdt is missing some critical features and is geared almost exclusively towards
HDFS operations.  Additionally, the token files that are created use Java serializations which
are hard/impossible to deal with in other languages. It should be replaced with a better utility
in common that can read/write protobuf-based token files, has enough flexibility to be used
with other services, and offers key functionality such as append and rename. The old version
file format should still be supported for backward compatibility, but will be effectively
> A follow-on JIRA will deprecrate fetchdt.

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