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https://issues.apache.org/jira/browse/HDFS-10543?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15342502#comment-15342502
 ] 

Hadoop QA commented on HDFS-10543:
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| (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 19s 
{color} | {color:blue} Docker mode activated. {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:green}+1{color} | {color:green} mvninstall {color} | {color:green} 7m 
56s {color} | {color:green} HDFS-8707 passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 6m 8s 
{color} | {color:green} HDFS-8707 passed with JDK v1.8.0_91 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 5m 57s 
{color} | {color:green} HDFS-8707 passed with JDK v1.7.0_101 {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m 15s 
{color} | {color:green} HDFS-8707 passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 
13s {color} | {color:green} HDFS-8707 passed {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 0m 
10s {color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 6m 5s 
{color} | {color:green} the patch passed with JDK v1.8.0_91 {color} |
| {color:red}-1{color} | {color:red} cc {color} | {color:red} 6m 5s {color} | 
{color:red} hadoop-hdfs-project_hadoop-hdfs-native-client-jdk1.8.0_91 with JDK 
v1.8.0_91 generated 1 new + 29 unchanged - 0 fixed = 30 total (was 29) {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 6m 5s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 6m 6s 
{color} | {color:green} the patch passed with JDK v1.7.0_101 {color} |
| {color:red}-1{color} | {color:red} cc {color} | {color:red} 6m 6s {color} | 
{color:red} hadoop-hdfs-project_hadoop-hdfs-native-client-jdk1.7.0_101 with JDK 
v1.7.0_101 generated 1 new + 29 unchanged - 0 fixed = 30 total (was 29) {color} 
|
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 6m 6s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m 14s 
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green} 0m 
10s {color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} whitespace {color} | {color:red} 0m 0s 
{color} | {color:red} The patch has 1 line(s) that end in whitespace. Use git 
apply --whitespace=fix. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 7m 39s 
{color} | {color:green} hadoop-hdfs-native-client in the patch passed with JDK 
v1.8.0_91. {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green} 7m 9s 
{color} | {color:green} hadoop-hdfs-native-client in the patch passed with JDK 
v1.7.0_101. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 
18s {color} | {color:green} The patch does not generate ASF License warnings. 
{color} |
| {color:black}{color} | {color:black} {color} | {color:black} 50m 35s {color} 
| {color:black} {color} |
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:0cf5e66 |
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12812260/HDFS-10543.HDFS-8707.002.patch
 |
| JIRA Issue | HDFS-10543 |
| Optional Tests |  asflicense  compile  cc  mvnsite  javac  unit  |
| uname | Linux bf918c426b67 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 |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh 
|
| git revision | HDFS-8707 / 71af408 |
| Default Java | 1.7.0_101 |
| Multi-JDK versions |  /usr/lib/jvm/java-8-oracle:1.8.0_91 
/usr/lib/jvm/java-7-openjdk-amd64:1.7.0_101 |
| cc | 
https://builds.apache.org/job/PreCommit-HDFS-Build/15848/artifact/patchprocess/diff-compile-cc-hadoop-hdfs-project_hadoop-hdfs-native-client-jdk1.8.0_91.txt
 |
| cc | 
https://builds.apache.org/job/PreCommit-HDFS-Build/15848/artifact/patchprocess/diff-compile-cc-hadoop-hdfs-project_hadoop-hdfs-native-client-jdk1.7.0_101.txt
 |
| whitespace | 
https://builds.apache.org/job/PreCommit-HDFS-Build/15848/artifact/patchprocess/whitespace-eol.txt
 |
| JDK v1.7.0_101  Test Results | 
https://builds.apache.org/job/PreCommit-HDFS-Build/15848/testReport/ |
| modules | C: hadoop-hdfs-project/hadoop-hdfs-native-client U: 
hadoop-hdfs-project/hadoop-hdfs-native-client |
| Console output | 
https://builds.apache.org/job/PreCommit-HDFS-Build/15848/console |
| Powered by | Apache Yetus 0.3.0   http://yetus.apache.org |


This message was automatically generated.



> hdfsRead read stops at block boundary
> -------------------------------------
>
>                 Key: HDFS-10543
>                 URL: https://issues.apache.org/jira/browse/HDFS-10543
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: hdfs-client
>            Reporter: Xiaowei Zhu
>            Assignee: James Clampffer
>         Attachments: HDFS-10543.HDFS-8707.000.patch, 
> HDFS-10543.HDFS-8707.001.patch, HDFS-10543.HDFS-8707.002.patch
>
>
> Reproducer:
> char *buf2 = new char[file_info->mSize];
>       memset(buf2, 0, (size_t)file_info->mSize);
>       int ret = hdfsRead(fs, file, buf2, file_info->mSize);
>       delete [] buf2;
>       if(ret != file_info->mSize) {
>         std::stringstream ss;
>         ss << "tried to read " << file_info->mSize << " bytes. but read " << 
> ret << " bytes";
>         ReportError(ss.str());
>         hdfsCloseFile(fs, file);
>         continue;
>       }
> When it runs with a file ~1.4GB large, it will return an error like "tried to 
> read 1468888890 bytes. but read 134217728 bytes". The HDFS cluster it runs 
> against has a block size of 134217728 bytes. So it seems hdfsRead will stop 
> at a block boundary. Looks like a regression. We should add retry to continue 
> reading cross blocks in case of files w/ multiple blocks.



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