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Posted to hdfs-issues@hadoop.apache.org by "Hairong Kuang (JIRA)" <ji...@apache.org> on 2010/03/02 21:05:27 UTC
[jira] Created: (HDFS-1016) HDFS side change for HADOOP-6569
HDFS side change for HADOOP-6569
--------------------------------
Key: HDFS-1016
URL: https://issues.apache.org/jira/browse/HDFS-1016
Project: Hadoop HDFS
Issue Type: Improvement
Components: hdfs client
Reporter: Hairong Kuang
Assignee: Hairong Kuang
Fix For: 0.22.0
1. TestCLI configuration file should be modified.
2. DistributedFileSystem#open change the exception to be FileNotFoundException when the file does not exist.
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[jira] Updated: (HDFS-1016) HDFS side change for HADOOP-6569
Posted by "Hairong Kuang (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-1016?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Hairong Kuang updated HDFS-1016:
--------------------------------
Status: Patch Available (was: Open)
> HDFS side change for HADOOP-6569
> --------------------------------
>
> Key: HDFS-1016
> URL: https://issues.apache.org/jira/browse/HDFS-1016
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs client
> Reporter: Hairong Kuang
> Assignee: Hairong Kuang
> Fix For: 0.22.0
>
> Attachments: optimizeCat_HDFS.patch, optimizeCat_HDFS1.patch
>
>
> 1. TestCLI configuration file should be modified.
> 2. DistributedFileSystem#open change the exception to be FileNotFoundException when the file does not exist.
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[jira] Commented: (HDFS-1016) HDFS side change for HADOOP-6569
Posted by "Hudson (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-1016?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12842149#action_12842149 ]
Hudson commented on HDFS-1016:
------------------------------
Integrated in Hadoop-Hdfs-trunk-Commit #208 (See [http://hudson.zones.apache.org/hudson/job/Hadoop-Hdfs-trunk-Commit/208/])
. HDFS side change for HADOOP-6569. Contributed by Hairong Kuang.
> HDFS side change for HADOOP-6569
> --------------------------------
>
> Key: HDFS-1016
> URL: https://issues.apache.org/jira/browse/HDFS-1016
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs client
> Reporter: Hairong Kuang
> Assignee: Hairong Kuang
> Fix For: 0.22.0
>
> Attachments: optimizeCat_HDFS.patch, optimizeCat_HDFS1.patch, optimizeCat_HDFS2.patch
>
>
> 1. TestCLI configuration file should be modified.
> 2. DistributedFileSystem#open change the exception to be FileNotFoundException when the file does not exist.
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[jira] Updated: (HDFS-1016) HDFS side change for HADOOP-6569
Posted by "Hairong Kuang (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-1016?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Hairong Kuang updated HDFS-1016:
--------------------------------
Resolution: Fixed
Release Note:
When cat a directory or a non-existent file from the command line, the error message gets printed becomes
cat: io.java.FileNotFoundException: File does not exist: <absolute path name>
Status: Resolved (was: Patch Available)
I just committed this!
> HDFS side change for HADOOP-6569
> --------------------------------
>
> Key: HDFS-1016
> URL: https://issues.apache.org/jira/browse/HDFS-1016
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs client
> Reporter: Hairong Kuang
> Assignee: Hairong Kuang
> Fix For: 0.22.0
>
> Attachments: optimizeCat_HDFS.patch, optimizeCat_HDFS1.patch, optimizeCat_HDFS2.patch
>
>
> 1. TestCLI configuration file should be modified.
> 2. DistributedFileSystem#open change the exception to be FileNotFoundException when the file does not exist.
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[jira] Commented: (HDFS-1016) HDFS side change for HADOOP-6569
Posted by "Hadoop QA (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-1016?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12841211#action_12841211 ]
Hadoop QA commented on HDFS-1016:
---------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12437795/optimizeCat_HDFS1.patch
against trunk revision 916902.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 10 new or modified tests.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 javac. The applied patch does not increase the total number of javac compiler warnings.
+1 findbugs. The patch does not introduce any new Findbugs warnings.
+1 release audit. The applied patch does not increase the total number of release audit warnings.
+1 core tests. The patch passed core unit tests.
-1 contrib tests. The patch failed contrib unit tests.
Test results: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h2.grid.sp2.yahoo.net/125/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h2.grid.sp2.yahoo.net/125/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h2.grid.sp2.yahoo.net/125/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h2.grid.sp2.yahoo.net/125/console
This message is automatically generated.
> HDFS side change for HADOOP-6569
> --------------------------------
>
> Key: HDFS-1016
> URL: https://issues.apache.org/jira/browse/HDFS-1016
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs client
> Reporter: Hairong Kuang
> Assignee: Hairong Kuang
> Fix For: 0.22.0
>
> Attachments: optimizeCat_HDFS.patch, optimizeCat_HDFS1.patch
>
>
> 1. TestCLI configuration file should be modified.
> 2. DistributedFileSystem#open change the exception to be FileNotFoundException when the file does not exist.
--
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[jira] Commented: (HDFS-1016) HDFS side change for HADOOP-6569
Posted by "Hudson (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-1016?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12853640#action_12853640 ]
Hudson commented on HDFS-1016:
------------------------------
Integrated in Hdfs-Patch-h2.grid.sp2.yahoo.net #146 (See [http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h2.grid.sp2.yahoo.net/146/])
> HDFS side change for HADOOP-6569
> --------------------------------
>
> Key: HDFS-1016
> URL: https://issues.apache.org/jira/browse/HDFS-1016
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs client
> Reporter: Hairong Kuang
> Assignee: Hairong Kuang
> Fix For: 0.22.0
>
> Attachments: optimizeCat_HDFS.patch, optimizeCat_HDFS1.patch, optimizeCat_HDFS2.patch
>
>
> 1. TestCLI configuration file should be modified.
> 2. DistributedFileSystem#open change the exception to be FileNotFoundException when the file does not exist.
--
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[jira] Updated: (HDFS-1016) HDFS side change for HADOOP-6569
Posted by "Hairong Kuang (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-1016?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Hairong Kuang updated HDFS-1016:
--------------------------------
Attachment: optimizeCat_HDFS2.patch
In the trunk, DistributedFileSystem#open throws FileNotFoundException but with a not idea message. My previous patch catches the exception at the client side and instantiates a new exception with a more readable message. After discussion with Suresh, here is another patch that does the minimal change to the trunk. It makes the NameNode side exception with a more meaningful message but no change at the client side. The disadvantage of the new patch is that the command line error message contains the exception class name which is introduced by RPC. This will be addressed in a later jira.
> HDFS side change for HADOOP-6569
> --------------------------------
>
> Key: HDFS-1016
> URL: https://issues.apache.org/jira/browse/HDFS-1016
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs client
> Reporter: Hairong Kuang
> Assignee: Hairong Kuang
> Fix For: 0.22.0
>
> Attachments: optimizeCat_HDFS.patch, optimizeCat_HDFS1.patch, optimizeCat_HDFS2.patch
>
>
> 1. TestCLI configuration file should be modified.
> 2. DistributedFileSystem#open change the exception to be FileNotFoundException when the file does not exist.
--
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[jira] Updated: (HDFS-1016) HDFS side change for HADOOP-6569
Posted by "Hairong Kuang (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-1016?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Hairong Kuang updated HDFS-1016:
--------------------------------
Status: Patch Available (was: Open)
> HDFS side change for HADOOP-6569
> --------------------------------
>
> Key: HDFS-1016
> URL: https://issues.apache.org/jira/browse/HDFS-1016
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs client
> Reporter: Hairong Kuang
> Assignee: Hairong Kuang
> Fix For: 0.22.0
>
> Attachments: optimizeCat_HDFS.patch
>
>
> 1. TestCLI configuration file should be modified.
> 2. DistributedFileSystem#open change the exception to be FileNotFoundException when the file does not exist.
--
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[jira] Commented: (HDFS-1016) HDFS side change for HADOOP-6569
Posted by "Suresh Srinivas (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-1016?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12841956#action_12841956 ]
Suresh Srinivas commented on HDFS-1016:
---------------------------------------
Core test failure is unrelated to this patch and is due to TestBlockReport, tracked by HDFS-733
> HDFS side change for HADOOP-6569
> --------------------------------
>
> Key: HDFS-1016
> URL: https://issues.apache.org/jira/browse/HDFS-1016
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs client
> Reporter: Hairong Kuang
> Assignee: Hairong Kuang
> Fix For: 0.22.0
>
> Attachments: optimizeCat_HDFS.patch, optimizeCat_HDFS1.patch, optimizeCat_HDFS2.patch
>
>
> 1. TestCLI configuration file should be modified.
> 2. DistributedFileSystem#open change the exception to be FileNotFoundException when the file does not exist.
--
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[jira] Commented: (HDFS-1016) HDFS side change for HADOOP-6569
Posted by "Hadoop QA (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-1016?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12841657#action_12841657 ]
Hadoop QA commented on HDFS-1016:
---------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12437917/optimizeCat_HDFS2.patch
against trunk revision 916902.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 11 new or modified tests.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 javac. The applied patch does not increase the total number of javac compiler warnings.
+1 findbugs. The patch does not introduce any new Findbugs warnings.
+1 release audit. The applied patch does not increase the total number of release audit warnings.
-1 core tests. The patch failed core unit tests.
-1 contrib tests. The patch failed contrib unit tests.
Test results: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/264/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/264/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/264/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/264/console
This message is automatically generated.
> HDFS side change for HADOOP-6569
> --------------------------------
>
> Key: HDFS-1016
> URL: https://issues.apache.org/jira/browse/HDFS-1016
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs client
> Reporter: Hairong Kuang
> Assignee: Hairong Kuang
> Fix For: 0.22.0
>
> Attachments: optimizeCat_HDFS.patch, optimizeCat_HDFS1.patch, optimizeCat_HDFS2.patch
>
>
> 1. TestCLI configuration file should be modified.
> 2. DistributedFileSystem#open change the exception to be FileNotFoundException when the file does not exist.
--
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You can reply to this email to add a comment to the issue online.
[jira] Updated: (HDFS-1016) HDFS side change for HADOOP-6569
Posted by "Hairong Kuang (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-1016?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Hairong Kuang updated HDFS-1016:
--------------------------------
Attachment: optimizeCat_HDFS1.patch
submit the patch again.
> HDFS side change for HADOOP-6569
> --------------------------------
>
> Key: HDFS-1016
> URL: https://issues.apache.org/jira/browse/HDFS-1016
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs client
> Reporter: Hairong Kuang
> Assignee: Hairong Kuang
> Fix For: 0.22.0
>
> Attachments: optimizeCat_HDFS.patch, optimizeCat_HDFS1.patch
>
>
> 1. TestCLI configuration file should be modified.
> 2. DistributedFileSystem#open change the exception to be FileNotFoundException when the file does not exist.
--
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You can reply to this email to add a comment to the issue online.
[jira] Commented: (HDFS-1016) HDFS side change for HADOOP-6569
Posted by "Hadoop QA (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-1016?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12840453#action_12840453 ]
Hadoop QA commented on HDFS-1016:
---------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12437663/optimizeCat_HDFS.patch
against trunk revision 916902.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 6 new or modified tests.
+1 javadoc. The javadoc tool did not generate any warning messages.
+1 javac. The applied patch does not increase the total number of javac compiler warnings.
+1 findbugs. The patch does not introduce any new Findbugs warnings.
+1 release audit. The applied patch does not increase the total number of release audit warnings.
-1 core tests. The patch failed core unit tests.
-1 contrib tests. The patch failed contrib unit tests.
Test results: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/260/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/260/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/260/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/260/console
This message is automatically generated.
> HDFS side change for HADOOP-6569
> --------------------------------
>
> Key: HDFS-1016
> URL: https://issues.apache.org/jira/browse/HDFS-1016
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs client
> Reporter: Hairong Kuang
> Assignee: Hairong Kuang
> Fix For: 0.22.0
>
> Attachments: optimizeCat_HDFS.patch
>
>
> 1. TestCLI configuration file should be modified.
> 2. DistributedFileSystem#open change the exception to be FileNotFoundException when the file does not exist.
--
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[jira] Commented: (HDFS-1016) HDFS side change for HADOOP-6569
Posted by "Hudson (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-1016?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12853939#action_12853939 ]
Hudson commented on HDFS-1016:
------------------------------
Integrated in Hadoop-Hdfs-trunk #275 (See [http://hudson.zones.apache.org/hudson/job/Hadoop-Hdfs-trunk/275/])
> HDFS side change for HADOOP-6569
> --------------------------------
>
> Key: HDFS-1016
> URL: https://issues.apache.org/jira/browse/HDFS-1016
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs client
> Reporter: Hairong Kuang
> Assignee: Hairong Kuang
> Fix For: 0.22.0
>
> Attachments: optimizeCat_HDFS.patch, optimizeCat_HDFS1.patch, optimizeCat_HDFS2.patch
>
>
> 1. TestCLI configuration file should be modified.
> 2. DistributedFileSystem#open change the exception to be FileNotFoundException when the file does not exist.
--
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[jira] Commented: (HDFS-1016) HDFS side change for HADOOP-6569
Posted by "Hudson (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-1016?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12853855#action_12853855 ]
Hudson commented on HDFS-1016:
------------------------------
Integrated in Hdfs-Patch-h5.grid.sp2.yahoo.net #302 (See [http://hudson.zones.apache.org/hudson/job/Hdfs-Patch-h5.grid.sp2.yahoo.net/302/])
> HDFS side change for HADOOP-6569
> --------------------------------
>
> Key: HDFS-1016
> URL: https://issues.apache.org/jira/browse/HDFS-1016
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs client
> Reporter: Hairong Kuang
> Assignee: Hairong Kuang
> Fix For: 0.22.0
>
> Attachments: optimizeCat_HDFS.patch, optimizeCat_HDFS1.patch, optimizeCat_HDFS2.patch
>
>
> 1. TestCLI configuration file should be modified.
> 2. DistributedFileSystem#open change the exception to be FileNotFoundException when the file does not exist.
--
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[jira] Updated: (HDFS-1016) HDFS side change for HADOOP-6569
Posted by "Hairong Kuang (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-1016?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Hairong Kuang updated HDFS-1016:
--------------------------------
Status: Open (was: Patch Available)
> HDFS side change for HADOOP-6569
> --------------------------------
>
> Key: HDFS-1016
> URL: https://issues.apache.org/jira/browse/HDFS-1016
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs client
> Reporter: Hairong Kuang
> Assignee: Hairong Kuang
> Fix For: 0.22.0
>
> Attachments: optimizeCat_HDFS.patch, optimizeCat_HDFS1.patch
>
>
> 1. TestCLI configuration file should be modified.
> 2. DistributedFileSystem#open change the exception to be FileNotFoundException when the file does not exist.
--
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[jira] Updated: (HDFS-1016) HDFS side change for HADOOP-6569
Posted by "Hairong Kuang (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-1016?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Hairong Kuang updated HDFS-1016:
--------------------------------
Attachment: optimizeCat_HDFS.patch
Here is the patch.
> HDFS side change for HADOOP-6569
> --------------------------------
>
> Key: HDFS-1016
> URL: https://issues.apache.org/jira/browse/HDFS-1016
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs client
> Reporter: Hairong Kuang
> Assignee: Hairong Kuang
> Fix For: 0.22.0
>
> Attachments: optimizeCat_HDFS.patch
>
>
> 1. TestCLI configuration file should be modified.
> 2. DistributedFileSystem#open change the exception to be FileNotFoundException when the file does not exist.
--
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[jira] Updated: (HDFS-1016) HDFS side change for HADOOP-6569
Posted by "Hairong Kuang (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-1016?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Hairong Kuang updated HDFS-1016:
--------------------------------
Status: Open (was: Patch Available)
> HDFS side change for HADOOP-6569
> --------------------------------
>
> Key: HDFS-1016
> URL: https://issues.apache.org/jira/browse/HDFS-1016
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs client
> Reporter: Hairong Kuang
> Assignee: Hairong Kuang
> Fix For: 0.22.0
>
> Attachments: optimizeCat_HDFS.patch, optimizeCat_HDFS1.patch, optimizeCat_HDFS2.patch
>
>
> 1. TestCLI configuration file should be modified.
> 2. DistributedFileSystem#open change the exception to be FileNotFoundException when the file does not exist.
--
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[jira] Commented: (HDFS-1016) HDFS side change for HADOOP-6569
Posted by "Suresh Srinivas (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-1016?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12841951#action_12841951 ]
Suresh Srinivas commented on HDFS-1016:
---------------------------------------
+1 for the patch.
> HDFS side change for HADOOP-6569
> --------------------------------
>
> Key: HDFS-1016
> URL: https://issues.apache.org/jira/browse/HDFS-1016
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs client
> Reporter: Hairong Kuang
> Assignee: Hairong Kuang
> Fix For: 0.22.0
>
> Attachments: optimizeCat_HDFS.patch, optimizeCat_HDFS1.patch, optimizeCat_HDFS2.patch
>
>
> 1. TestCLI configuration file should be modified.
> 2. DistributedFileSystem#open change the exception to be FileNotFoundException when the file does not exist.
--
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[jira] Updated: (HDFS-1016) HDFS side change for HADOOP-6569
Posted by "Hairong Kuang (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HDFS-1016?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Hairong Kuang updated HDFS-1016:
--------------------------------
Status: Patch Available (was: Open)
> HDFS side change for HADOOP-6569
> --------------------------------
>
> Key: HDFS-1016
> URL: https://issues.apache.org/jira/browse/HDFS-1016
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: hdfs client
> Reporter: Hairong Kuang
> Assignee: Hairong Kuang
> Fix For: 0.22.0
>
> Attachments: optimizeCat_HDFS.patch, optimizeCat_HDFS1.patch, optimizeCat_HDFS2.patch
>
>
> 1. TestCLI configuration file should be modified.
> 2. DistributedFileSystem#open change the exception to be FileNotFoundException when the file does not exist.
--
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