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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-11361) Block Storage : add cache interface
Date Thu, 23 Mar 2017 00:51:41 GMT

    [ https://issues.apache.org/jira/browse/HDFS-11361?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15937478#comment-15937478
] 

Hadoop QA commented on HDFS-11361:
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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 20s{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 1 new or modified test files. {color} |
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m 24s{color} | {color:blue}
Maven dependency ordering for branch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 15m 12s{color}
| {color:green} HDFS-7240 passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m 47s{color} |
{color:green} HDFS-7240 passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 45s{color}
| {color:green} HDFS-7240 passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m 42s{color} |
{color:green} HDFS-7240 passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 27s{color}
| {color:green} HDFS-7240 passed {color} |
| {color:red}-1{color} | {color:red} findbugs {color} | {color:red}  1m 44s{color} | {color:red}
hadoop-hdfs-project/hadoop-hdfs-client in HDFS-7240 has 90 extant Findbugs warnings. {color}
|
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m 34s{color} |
{color:green} HDFS-7240 passed {color} |
| {color:blue}0{color} | {color:blue} mvndep {color} | {color:blue}  0m  8s{color} | {color:blue}
Maven dependency ordering for patch {color} |
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green}  1m 36s{color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green}  1m 36s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green}  1m 36s{color} | {color:green}
the patch passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green}  0m 42s{color}
| {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green}  1m 40s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} mvneclipse {color} | {color:green}  0m 24s{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} xml {color} | {color:green}  0m  1s{color} | {color:green}
The patch has no ill-formed XML file. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green}  4m 18s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green}  1m 31s{color} |
{color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} unit {color} | {color:green}  1m  1s{color} | {color:green}
hadoop-hdfs-client in the patch passed. {color} |
| {color:red}-1{color} | {color:red} unit {color} | {color:red} 71m 51s{color} | {color:red}
hadoop-hdfs in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green}  0m 22s{color}
| {color:green} The patch does not generate ASF License warnings. {color} |
| {color:black}{color} | {color:black} {color} | {color:black}112m 51s{color} | {color:black}
{color} |
\\
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|| Reason || Tests ||
| Failed junit tests | hadoop.hdfs.server.datanode.TestDataNodeVolumeFailure |
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|| Subsystem || Report/Notes ||
| Docker |  Image:yetus/hadoop:a9ad5d6 |
| JIRA Issue | HDFS-11361 |
| JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12860031/HDFS-11361-HDFS-7240.009.patch
|
| Optional Tests |  asflicense  compile  javac  javadoc  mvninstall  mvnsite  unit  findbugs
 checkstyle  xml  |
| uname | Linux ade48409144a 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 | HDFS-7240 / 3029485 |
| Default Java | 1.8.0_121 |
| findbugs | v3.0.0 |
| findbugs | https://builds.apache.org/job/PreCommit-HDFS-Build/18807/artifact/patchprocess/branch-findbugs-hadoop-hdfs-project_hadoop-hdfs-client-warnings.html
|
| unit | https://builds.apache.org/job/PreCommit-HDFS-Build/18807/artifact/patchprocess/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt
|
|  Test Results | https://builds.apache.org/job/PreCommit-HDFS-Build/18807/testReport/ |
| modules | C: hadoop-hdfs-project/hadoop-hdfs-client hadoop-hdfs-project/hadoop-hdfs U: hadoop-hdfs-project
|
| Console output | https://builds.apache.org/job/PreCommit-HDFS-Build/18807/console |
| Powered by | Apache Yetus 0.5.0-SNAPSHOT   http://yetus.apache.org |


This message was automatically generated.



> Block Storage : add cache interface
> -----------------------------------
>
>                 Key: HDFS-11361
>                 URL: https://issues.apache.org/jira/browse/HDFS-11361
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: hdfs
>            Reporter: Chen Liang
>            Assignee: Chen Liang
>         Attachments: HDFS-11361-HDFS-7240.001.patch, HDFS-11361-HDFS-7240.002.patch,
HDFS-11361-HDFS-7240.003.patch, HDFS-11361-HDFS-7240.004.patch, HDFS-11361-HDFS-7240.005.patch,
HDFS-11361-HDFS-7240.006.patch, HDFS-11361-HDFS-7240.007.patch, HDFS-11361-HDFS-7240.008.patch,
HDFS-11361-HDFS-7240.009.patch
>
>
> This JIRA includes two major pieces: 1. the interface exposed to upper layer operating
system that mounts the file system; and 2. the interface exposed to lower layer container
storage layer.
> On one hand, to make CBlock mountable and accessible for a POSIX OS, we need to implement
file system protocol. We chose to do this by running cblock with jSCSI (http://jscsi.org/)
which is a java implementation of iSCSI protocol. More specifically, CBlock volume will exposed
as an java-based iSCSI target, and any machine that has iSCSI installed will be able to talk
to CBlock volume and mounted locally just as any disks. This is JIRA make a starting point
by introducing jSCSI and implementing its {{IStorageModule}}. This will be registered to jSCSI
server in future JIRA. 
> One the other hand, to be able to have the CBlock talk to container layer with better
performance, CBlock should be able to cache data locally. More specifically, clients' read/write
should be performed on the locally disk cache, while threads are pushing and retrieving data
in backend. This JIRA takes the first step by defining interfaces for the local cache. 



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