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https://issues.apache.org/jira/browse/HADOOP-15688?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16589587#comment-16589587
 ] 

genericqa commented on HADOOP-15688:
------------------------------------

| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m 
13s{color} | {color:blue} Docker mode activated. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} @author {color} | {color:green}  0m  
0s{color} | {color:green} The patch does not contain any @author tags. {color} |
| {color:red}-1{color} | {color:red} test4tests {color} | {color:red}  0m  
0s{color} | {color:red} 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} |
|| || || || {color:brown} HADOOP-15407 Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 31m 
35s{color} | {color:green} HADOOP-15407 passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
32s{color} | {color:green} HADOOP-15407 passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 
24s{color} | {color:green} HADOOP-15407 passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
31s{color} | {color:green} HADOOP-15407 passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 
11m 54s{color} | {color:green} branch has no errors when building and testing 
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  0m 
41s{color} | {color:green} HADOOP-15407 passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
22s{color} | {color:green} HADOOP-15407 passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 
28s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 
23s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 
23s{color} | {color:green} the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}  
0m 16s{color} | {color:orange} hadoop-tools/hadoop-azure: The patch generated 1 
new + 0 unchanged - 0 fixed = 1 total (was 0) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 
27s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green}  0m 
 0s{color} | {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 
12m 35s{color} | {color:green} patch has no errors when building and testing 
our client artifacts. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  0m 
47s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 
18s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  1m 
13s{color} | {color:green} hadoop-azure in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 
24s{color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 63m 12s{color} | 
{color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hadoop:ba1ab08 |
| JIRA Issue | HADOOP-15688 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12936706/HADOOP-15688-HADOOP-15407-002.patch
 |
| Optional Tests |  dupname  asflicense  compile  javac  javadoc  mvninstall  
mvnsite  unit  shadedclient  findbugs  checkstyle  |
| uname | Linux cadf7cf9a263 3.13.0-153-generic #203-Ubuntu SMP Thu Jun 14 
08:52:28 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/provided.sh |
| git revision | HADOOP-15407 / e70e156 |
| maven | version: Apache Maven 3.3.9 |
| Default Java | 1.8.0_181 |
| findbugs | v3.1.0-RC1 |
| checkstyle | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/15082/artifact/out/diff-checkstyle-hadoop-tools_hadoop-azure.txt
 |
|  Test Results | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/15082/testReport/ |
| Max. process+thread count | 334 (vs. ulimit of 10000) |
| modules | C: hadoop-tools/hadoop-azure U: hadoop-tools/hadoop-azure |
| Console output | 
https://builds.apache.org/job/PreCommit-HADOOP-Build/15082/console |
| Powered by | Apache Yetus 0.8.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> ABFS: InputStream wrapped in FSDataInputStream twice
> ----------------------------------------------------
>
>                 Key: HADOOP-15688
>                 URL: https://issues.apache.org/jira/browse/HADOOP-15688
>             Project: Hadoop Common
>          Issue Type: Sub-task
>            Reporter: Sean Mackrory
>            Assignee: Sean Mackrory
>            Priority: Major
>         Attachments: HADOOP-15688-HADOOP-15407-002.patch, 
> HADOOP-15688.001.patch
>
>
> I can't read Parquet files from ABFS. It has 2 different implementations to 
> read seekable streams, and it'll use the one that uses ByteBuffer reads if it 
> can. It currently decides to use the ByteBuffer read implementation because 
> the FSDataInputStream it gets back wraps another FSDataInputStream, which 
> implements ByteBufferReadable.
> That's not the most robust way to check that ByteBufferReads are supported by 
> the ultimately underlying InputStream, but it's unnecessary and probably a 
> mistake to double-wrap the InputStream, so let's not.



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