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https://issues.apache.org/jira/browse/HADOOP-12853?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15171612#comment-15171612
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Hadoop QA commented on HADOOP-12853:
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 9s
{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} mvnsite {color} | {color:green} 0m 19s
{color} | {color:green} trunk passed {color} |
| {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 0m 19s
{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m
0s {color} | {color:green} Patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
17s {color} | {color:green} Patch does not generate ASF License warnings.
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| {color:black}{color} | {color:black} {color} | {color:black} 1m 17s {color} |
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|| Subsystem || Report/Notes ||
| Docker | Image:yetus/hadoop:0ca8df7 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12790433/HADOOP-12853.001.patch
|
| JIRA Issue | HADOOP-12853 |
| Optional Tests | asflicense mvnsite |
| uname | Linux 9c2cfcaf9f39 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 | trunk / e3ac231 |
| modules | C: hadoop-tools/hadoop-azure U: hadoop-tools/hadoop-azure |
| Console output |
https://builds.apache.org/job/PreCommit-HADOOP-Build/8742/console |
| Powered by | Apache Yetus 0.2.0-SNAPSHOT http://yetus.apache.org |
This message was automatically generated.
> Change WASB documentation regarding page blob support
> -----------------------------------------------------
>
> Key: HADOOP-12853
> URL: https://issues.apache.org/jira/browse/HADOOP-12853
> Project: Hadoop Common
> Issue Type: Improvement
> Components: fs/azure
> Reporter: madhumita chakraborty
> Assignee: madhumita chakraborty
> Priority: Minor
> Attachments: HADOOP-12853.001.patch
>
>
> WASB page blob support documentation in Features list at the top:
> Supports both page blobs (suitable for most use cases, such as MapReduce) and
> block blobs (suitable for continuous write use cases, such as an HBase
> write-ahead log).
> Which is actually the opposite. Block blobs are better for typical big data
> use cases, and page blobs were implemented to support the HBase WAL.
> It is also mentioned that
> "Page blobs can be used for other purposes beyond just HBase log files
> though."
> This is not strong enough because page blob has been tested only in context
> of HBase write ahead logs. They have not been broadly certified for use
> across the HDP stack, hence is not recommended for use as a general purpose
> file-system via Hadoop cluster
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