[jira] [Commented] (HADOOP-11183) Memory-based S3AOutputstream

["Hadoop QA (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HADOOP-11183?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14343507#comment-14343507 ] 

Hadoop QA commented on HADOOP-11183:
------------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12701903/HADOOP-11183-007.patch
  against trunk revision ca1c00b.

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 2 new or modified test files.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of javac compiler warnings.

    {color:green}+1 javadoc{color}.  There were no new javadoc warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with eclipse:eclipse.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version 2.0.3) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number of release audit warnings.

    {color:red}-1 core tests{color}.  The patch failed these unit tests in hadoop-common-project/hadoop-common hadoop-tools/hadoop-aws:

                  org.apache.hadoop.ipc.TestRPCWaitForProxy

Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/5813//testReport/
Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/5813//console

This message is automatically generated.

> Memory-based S3AOutputstream
> ----------------------------
>
>                 Key: HADOOP-11183
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11183
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs/s3
>    Affects Versions: 2.6.0
>            Reporter: Thomas Demoor
>            Assignee: Thomas Demoor
>         Attachments: HADOOP-11183-004.patch, HADOOP-11183-005.patch, HADOOP-11183-006.patch, HADOOP-11183-007.patch, HADOOP-11183.001.patch, HADOOP-11183.002.patch, HADOOP-11183.003.patch, design-comments.pdf
>
>
> Currently s3a buffers files on disk(s) before uploading. This JIRA investigates adding a memory-based upload implementation.
> The motivation is evidently performance: this would be beneficial for users with high network bandwidth to S3 (EC2?) or users that run Hadoop directly on an S3-compatible object store (FYI: my contributions are made in name of Amplidata). 



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