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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-14444) New implementation of ftp and sftp filesystems
Date Wed, 24 May 2017 11:58:04 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-14444?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16022758#comment-16022758
] 

Hadoop QA commented on HADOOP-14444:
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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 34s{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:green}+1{color} | {color:green} test4tests {color} | {color:green}  0m  0s{color}
| {color:green} The patch appears to include 10 new or modified test files. {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 14m  4s{color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 14m  1s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 36s{color}
| {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m  4s{color} |
{color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 20s{color}
| {color:green} trunk passed {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red}  1m 26s{color} | {color:red}
hadoop-common-project/hadoop-common in trunk has 19 extant Findbugs warnings. {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  0m 51s{color} |
{color:green} trunk passed {color} |
| {color:red}-1{color} | {color:red} mvninstall {color} | {color:red}  0m 14s{color} | {color:red}
hadoop-common in the patch failed. {color} |
| {color:red}-1{color} | {color:red} compile {color} | {color:red}  0m 24s{color} | {color:red}
root in the patch failed. {color} |
| {color:red}-1{color} | {color:red} javac {color} | {color:red}  0m 24s{color} | {color:red}
root in the patch failed. {color} |
| {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange}  0m 31s{color}
| {color:orange} hadoop-common-project/hadoop-common: The patch generated 400 new + 0 unchanged
- 0 fixed = 400 total (was 0) {color} |
| {color:red}-1{color} | {color:red} mvnsite {color} | {color:red}  0m  6s{color} | {color:red}
hadoop-common in the patch failed. {color} |
| {color:red}-1{color} | {color:red} mvneclipse {color} | {color:red}  0m  7s{color} | {color:red}
hadoop-common in the patch failed. {color} |
| {color:red}-1{color} | {color:red} whitespace {color} | {color:red}  0m  0s{color} | {color:red}
The patch has 15 line(s) that end in whitespace. Use git apply --whitespace=fix <<patch_file>>.
Refer https://git-scm.com/docs/git-apply {color} |
| {color:green}+1{color} | {color:green} xml {color} | {color:green}  0m  1s{color} | {color:green}
The patch has no ill-formed XML file. {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red}  0m  6s{color} | {color:red}
hadoop-common in the patch failed. {color} |
| {color:red}-1{color} | {color:red} javadoc {color} | {color:red}  0m  6s{color} | {color:red}
hadoop-common in the patch failed. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red}  0m  6s{color} | {color:red}
hadoop-common in the patch failed. {color} |
| {color:red}-1{color} | {color:red} asflicense {color} | {color:red}  0m 18s{color} | {color:red}
The patch generated 3 ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black} 36m 32s{color} | {color:black}
{color} |
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:14b5c93 |
| JIRA Issue | HADOOP-14444 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12869235/HADOOP-14444.patch
|
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  unit  xml  findbugs
 checkstyle  |
| uname | Linux 9a3dbdbefcf6 3.13.0-107-generic #154-Ubuntu SMP Tue Dec 20 09:57:27 UTC 2016
x86_64 x86_64 x86_64 GNU/Linux |
| Build tool | maven |
| Personality | /testptch/hadoop/patchprocess/precommit/personality/provided.sh |
| git revision | trunk / a62be38 |
| Default Java | 1.8.0_131 |
| findbugs | v3.1.0-RC1 |
| findbugs | https://builds.apache.org/job/PreCommit-HADOOP-Build/12381/artifact/patchprocess/branch-findbugs-hadoop-common-project_hadoop-common-warnings.html
|
| mvninstall | https://builds.apache.org/job/PreCommit-HADOOP-Build/12381/artifact/patchprocess/patch-mvninstall-hadoop-common-project_hadoop-common.txt
|
| compile | https://builds.apache.org/job/PreCommit-HADOOP-Build/12381/artifact/patchprocess/patch-compile-root.txt
|
| javac | https://builds.apache.org/job/PreCommit-HADOOP-Build/12381/artifact/patchprocess/patch-compile-root.txt
|
| checkstyle | https://builds.apache.org/job/PreCommit-HADOOP-Build/12381/artifact/patchprocess/diff-checkstyle-hadoop-common-project_hadoop-common.txt
|
| mvnsite | https://builds.apache.org/job/PreCommit-HADOOP-Build/12381/artifact/patchprocess/patch-mvnsite-hadoop-common-project_hadoop-common.txt
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| mvneclipse | https://builds.apache.org/job/PreCommit-HADOOP-Build/12381/artifact/patchprocess/patch-mvneclipse-hadoop-common-project_hadoop-common.txt
|
| whitespace | https://builds.apache.org/job/PreCommit-HADOOP-Build/12381/artifact/patchprocess/whitespace-eol.txt
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| findbugs | https://builds.apache.org/job/PreCommit-HADOOP-Build/12381/artifact/patchprocess/patch-findbugs-hadoop-common-project_hadoop-common.txt
|
| javadoc | https://builds.apache.org/job/PreCommit-HADOOP-Build/12381/artifact/patchprocess/patch-javadoc-hadoop-common-project_hadoop-common.txt
|
| unit | https://builds.apache.org/job/PreCommit-HADOOP-Build/12381/artifact/patchprocess/patch-unit-hadoop-common-project_hadoop-common.txt
|
|  Test Results | https://builds.apache.org/job/PreCommit-HADOOP-Build/12381/testReport/ |
| asflicense | https://builds.apache.org/job/PreCommit-HADOOP-Build/12381/artifact/patchprocess/patch-asflicense-problems.txt
|
| modules | C: hadoop-common-project/hadoop-common U: hadoop-common-project/hadoop-common
|
| Console output | https://builds.apache.org/job/PreCommit-HADOOP-Build/12381/console |
| Powered by | Apache Yetus 0.5.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> New implementation of ftp and sftp filesystems
> ----------------------------------------------
>
>                 Key: HADOOP-14444
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14444
>             Project: Hadoop Common
>          Issue Type: New Feature
>          Components: fs
>    Affects Versions: 2.8.0
>            Reporter: Lukas Waldmann
>            Assignee: Lukas Waldmann
>         Attachments: HADOOP-14444.patch
>
>
> Current implementation of FTP and SFTP filesystems have severe limitations and performance
issues when dealing with high number of files. Mine patch solve those issues and integrate
both filesystems such a way that most of the core functionality is common for both and therefore
simplifying the maintainability.
> The core features:
> * Support for HTTP/SOCKS proxies
> * Support for passive FTP
> * Support of connection pooling - new connection is not created for every single command
but reused from the pool.
> For huge number of files it shows order of magnitude performance improvement over not
pooled connections.
> * Caching of directory trees. For ftp you always need to list whole directory whenever
you ask information about particular file.
> Again for huge number of files it shows order of magnitude performance improvement over
not cached connections.
> * Support of keep alive (NOOP) messages to avoid connection drops
> * Support for Unix style or regexp wildcard glob - useful for listing a particular files
across whole directory tree
> * Support for reestablishing broken ftp data transfers - can happen surprisingly often



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