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https://issues.apache.org/jira/browse/HADOOP-7967?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13290288#comment-13290288
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Hadoop QA commented on HADOOP-7967:
-----------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12531113/HADOOP-7967-compat.patch
against trunk revision .
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 4 new or modified test
files.
+1 javac. The applied patch does not increase the total number of javac
compiler warnings.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 eclipse:eclipse. The patch built with eclipse:eclipse.
+1 findbugs. The patch does not introduce any new Findbugs (version 1.3.9)
warnings.
+1 release audit. The applied patch does not increase the total number of
release audit warnings.
-1 core tests. The patch failed these unit tests in
hadoop-common-project/hadoop-common hadoop-hdfs-project/hadoop-hdfs
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core:
org.apache.hadoop.fs.viewfs.TestViewFsTrash
org.apache.hadoop.hdfs.TestDatanodeBlockScanner
+1 contrib tests. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-HADOOP-Build/1088//testReport/
Console output:
https://builds.apache.org/job/PreCommit-HADOOP-Build/1088//console
This message is automatically generated.
> Need generalized multi-token filesystem support
> -----------------------------------------------
>
> Key: HADOOP-7967
> URL: https://issues.apache.org/jira/browse/HADOOP-7967
> Project: Hadoop Common
> Issue Type: Bug
> Components: fs, security
> Affects Versions: 0.23.1, 0.24.0
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Attachments: HADOOP-7967-2.patch, HADOOP-7967-3.patch,
> HADOOP-7967-4.patch, HADOOP-7967-compat.patch, HADOOP-7967.patch
>
>
> Multi-token filesystem support and its interactions with the MR
> {{TokenCache}} is problematic. The {{TokenCache}} tries to assume it has the
> knowledge to know if the tokens for a filesystem are available, which it
> can't possibly know for multi-token filesystems. Filtered filesystems are
> also problematic, such as har on viewfs. When mergeFs is implemented, it too
> will become a problem with the current implementation. Currently
> {{FileSystem}} will leak tokens even when some tokens are already present.
> The decision for token acquisition, and which tokens, should be pushed all
> the way down into the {{FileSystem}} level. The {{TokenCache}} should be
> ignorant and simply request tokens from each {{FileSystem}}.
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