[ 
https://issues.apache.org/jira/browse/HDFS-8815?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14641990#comment-14641990
 ] 

Hadoop QA commented on HDFS-8815:
---------------------------------

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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | pre-patch |  18m 56s | Pre-patch trunk compilation is 
healthy. |
| {color:green}+1{color} | @author |   0m  0s | The patch does not contain any 
@author tags. |
| {color:green}+1{color} | tests included |   0m  0s | The patch appears to 
include 1 new or modified test files. |
| {color:green}+1{color} | javac |   7m 37s | There were no new javac warning 
messages. |
| {color:green}+1{color} | javadoc |   9m 48s | There were no new javadoc 
warning messages. |
| {color:green}+1{color} | release audit |   0m 23s | The applied patch does 
not increase the total number of release audit warnings. |
| {color:green}+1{color} | checkstyle |   2m 24s | There were no new checkstyle 
issues. |
| {color:red}-1{color} | whitespace |   0m  0s | The patch has 6  line(s) that 
end in whitespace. Use git apply --whitespace=fix. |
| {color:green}+1{color} | install |   1m 33s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse |   0m 34s | The patch built with 
eclipse:eclipse. |
| {color:green}+1{color} | findbugs |   4m 26s | The patch does not introduce 
any new Findbugs (version 3.0.0) warnings. |
| {color:green}+1{color} | native |   3m  3s | Pre-build of native portion |
| {color:red}-1{color} | hdfs tests | 162m 16s | Tests failed in hadoop-hdfs. |
| {color:green}+1{color} | hdfs tests |   0m 27s | Tests passed in 
hadoop-hdfs-client. |
| | | 211m 32s | |
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|| Reason || Tests ||
| Failed unit tests | hadoop.hdfs.TestAppendSnapshotTruncate |
|   | hadoop.hdfs.TestDistributedFileSystem |
|   | hadoop.hdfs.TestCrcCorruption |
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|| Subsystem || Report/Notes ||
| Patch URL | 
http://issues.apache.org/jira/secure/attachment/12747229/HDFS-8815-002.patch |
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / 156f24e |
| whitespace | 
https://builds.apache.org/job/PreCommit-HDFS-Build/11842/artifact/patchprocess/whitespace.txt
 |
| hadoop-hdfs test log | 
https://builds.apache.org/job/PreCommit-HDFS-Build/11842/artifact/patchprocess/testrun_hadoop-hdfs.txt
 |
| hadoop-hdfs-client test log | 
https://builds.apache.org/job/PreCommit-HDFS-Build/11842/artifact/patchprocess/testrun_hadoop-hdfs-client.txt
 |
| Test Results | 
https://builds.apache.org/job/PreCommit-HDFS-Build/11842/testReport/ |
| Java | 1.7.0_55 |
| uname | Linux asf900.gq1.ygridcore.net 3.13.0-36-lowlatency #63-Ubuntu SMP 
PREEMPT Wed Sep 3 21:56:12 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux |
| Console output | 
https://builds.apache.org/job/PreCommit-HDFS-Build/11842/console |


This message was automatically generated.

> DFS getStoragePolicy implementation using single RPC call
> ---------------------------------------------------------
>
>                 Key: HDFS-8815
>                 URL: https://issues.apache.org/jira/browse/HDFS-8815
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: hdfs-client
>    Affects Versions: 2.8.0
>            Reporter: Arpit Agarwal
>            Assignee: Surendra Singh Lilhore
>         Attachments: HDFS-8815-001.patch, HDFS-8815-002.patch
>
>
> HADOOP-12161 introduced a new {{FileSystem#getStoragePolicy}} call. The DFS 
> implementation of the call requires two RPC calls, the first to fetch the 
> storage policy ID and the second to fetch the policy suite to map the policy 
> ID to a {{BlockStoragePolicySpi}}.
> Fix the implementation to require a single RPC call.



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