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https://issues.apache.org/jira/browse/HDFS-8385?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14542089#comment-14542089
 ] 

Hadoop QA commented on HDFS-8385:
---------------------------------

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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | pre-patch |  15m  3s | Pre-patch trunk compilation is 
healthy. |
| {color:green}+1{color} | @author |   0m  0s | The patch does not contain any 
@author tags. |
| {color:red}-1{color} | tests included |   0m  0s | The patch doesn't appear 
to include any new or modified tests.  Please justify why no new tests are 
needed for this patch. Also please list what manual steps were performed to 
verify this patch. |
| {color:green}+1{color} | javac |   7m 47s | There were no new javac warning 
messages. |
| {color:green}+1{color} | javadoc |   9m 52s | 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 |   3m 19s | There were no new checkstyle 
issues. |
| {color:green}+1{color} | whitespace |   0m  0s | The patch has no lines that 
end in whitespace. |
| {color:green}+1{color} | install |   1m 31s | mvn install still works. |
| {color:green}+1{color} | eclipse:eclipse |   0m 34s | The patch built with 
eclipse:eclipse. |
| {color:green}+1{color} | findbugs |   4m 50s | The patch does not introduce 
any new Findbugs (version 2.0.3) warnings. |
| {color:green}+1{color} | common tests |  24m  2s | Tests passed in 
hadoop-common. |
| {color:red}-1{color} | hdfs tests |  92m 30s | Tests failed in hadoop-hdfs. |
| | | 159m 55s | |
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|| Reason || Tests ||
| Failed unit tests | hadoop.tracing.TestTraceAdmin |
|   | hadoop.hdfs.tools.TestDFSZKFailoverController |
|   | hadoop.hdfs.TestDecommission |
|   | hadoop.tools.TestHdfsConfigFields |
| Timed out tests | org.apache.hadoop.hdfs.TestHFlush |
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|| Subsystem || Report/Notes ||
| Patch URL | 
http://issues.apache.org/jira/secure/attachment/12732541/HDFS-8385.1.patch |
| Optional Tests | javadoc javac unit findbugs checkstyle |
| git revision | trunk / 065d8f2 |
| hadoop-common test log | 
https://builds.apache.org/job/PreCommit-HDFS-Build/10955/artifact/patchprocess/testrun_hadoop-common.txt
 |
| hadoop-hdfs test log | 
https://builds.apache.org/job/PreCommit-HDFS-Build/10955/artifact/patchprocess/testrun_hadoop-hdfs.txt
 |
| Test Results | 
https://builds.apache.org/job/PreCommit-HDFS-Build/10955/testReport/ |
| Java | 1.7.0_55 |
| uname | Linux asf903.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/10955/console |


This message was automatically generated.

> Remove unused entities (variables,methods and configurations) 
> --------------------------------------------------------------
>
>                 Key: HDFS-8385
>                 URL: https://issues.apache.org/jira/browse/HDFS-8385
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: J.Andreina
>            Assignee: J.Andreina
>         Attachments: HDFS-8385.1.patch
>
>
> Below are few unused constants , methods and configurations which can be 
> removed.
> *DfsClientConf*
>   public ChecksumOpt getDefaultChecksumOpt() {
>     return defaultChecksumOpt;
>   }
> *HdfsServerConstants*
>   long LEASE_RECOVER_PERIOD = 10 * 1000; // in ms
>   public static final String  DFS_STREAM_BUFFER_SIZE_KEY = 
> "dfs.stream-buffer-size";
>   public static final int     DFS_STREAM_BUFFER_SIZE_DEFAULT = 4096;
> *CommonConfigurationKeys*
>   public static final String  FS_HOME_DIR_KEY = "fs.homeDir";
>   public static final String  FS_HOME_DIR_DEFAULT = "/user";
>   public static final String  IO_COMPRESSION_CODEC_LZO_BUFFERSIZE_KEY =
>     "io.compression.codec.lzo.buffersize";
>   public static final String IO_COMPRESSION_CODEC_SNAPPY_BUFFERSIZE_KEY =
>       "io.compression.codec.snappy.buffersize";



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