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From "genericqa (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-15446) WASB: PageBlobInputStream.skip breaks HBASE replication
Date Fri, 04 May 2018 01:44:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-15446?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16463275#comment-16463275
] 

genericqa commented on HADOOP-15446:
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue}  0m 26s{color} | {color:blue}
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|| || || || {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:green}+1{color} | {color:green} test4tests {color} | {color:green}  0m  0s{color}
| {color:green} The patch appears to include 1 new or modified test files. {color} |
|| || || || {color:brown} trunk Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 30m 39s{color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 36s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 19s{color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 37s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 12m  7s{color}
| {color:green} branch has no errors when building and testing our client artifacts. {color}
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| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  0m 43s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 21s{color} |
{color:green} trunk passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  0m 27s{color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  0m 25s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  0m 25s{color} | {color:green}
the patch passed {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}  0m 17s{color}
| {color:orange} hadoop-tools/hadoop-azure: The patch generated 23 new + 4 unchanged - 0 fixed
= 27 total (was 4) {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  0m 26s{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 56s{color}
| {color:green} patch has no errors when building and testing our client artifacts. {color}
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| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  0m 42s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 16s{color} |
{color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  1m  9s{color} | {color:green}
hadoop-azure in the patch passed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 21s{color}
| {color:green} The patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 62m 58s{color} | {color:black}
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|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hadoop:abb62dd |
| JIRA Issue | HADOOP-15446 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12921867/HADOOP-15446-001.patch
|
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  unit  shadedclient
 findbugs  checkstyle  |
| uname | Linux 5e959d34f1f8 3.13.0-137-generic #186-Ubuntu SMP Mon Dec 4 19:09:19 UTC 2017
x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / a3b416f |
| maven | version: Apache Maven 3.3.9 |
| Default Java | 1.8.0_162 |
| findbugs | v3.1.0-RC1 |
| checkstyle | https://builds.apache.org/job/PreCommit-HADOOP-Build/14578/artifact/out/diff-checkstyle-hadoop-tools_hadoop-azure.txt
|
|  Test Results | https://builds.apache.org/job/PreCommit-HADOOP-Build/14578/testReport/ |
| Max. process+thread count | 302 (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/14578/console |
| Powered by | Apache Yetus 0.8.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> WASB: PageBlobInputStream.skip breaks HBASE replication
> -------------------------------------------------------
>
>                 Key: HADOOP-15446
>                 URL: https://issues.apache.org/jira/browse/HADOOP-15446
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: fs/azure
>    Affects Versions: 2.9.0, 3.0.2
>            Reporter: Thomas Marquardt
>            Assignee: Thomas Marquardt
>            Priority: Major
>         Attachments: HADOOP-15446-001.patch
>
>
> Page Blobs are primarily used by HBASE.  HBASE replication, which apparently has not
been used with WASB until recently, performs non-sequential reads on log files using PageBlobInputStream. 
There are bugs in this stream implementation which prevent skip and seek from working properly, and
eventually the stream state becomes corrupt and unusable.
> I believe this bug affects all releases of WASB/HADOOP.  It appears to be a day-0 bug
in PageBlobInputStream.  There were similar bugs opened in the past (HADOOP-15042) but the
issue was not properly fixed, and no test coverage was added.



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