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https://issues.apache.org/jira/browse/FLINK-9280?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16511234#comment-16511234
 ] 

ASF GitHub Bot commented on FLINK-9280:
---------------------------------------

Github user tillrohrmann commented on a diff in the pull request:

    https://github.com/apache/flink/pull/6147#discussion_r195101162
  
    --- Diff: 
flink-runtime/src/main/java/org/apache/flink/runtime/rest/FileUploadHandler.java
 ---
    @@ -91,19 +111,49 @@ protected void channelRead0(final 
ChannelHandlerContext ctx, final HttpObject ms
     
                        while (httpContent != 
LastHttpContent.EMPTY_LAST_CONTENT && currentHttpPostRequestDecoder.hasNext()) {
                                final InterfaceHttpData data = 
currentHttpPostRequestDecoder.next();
    -                           if (data.getHttpDataType() == 
InterfaceHttpData.HttpDataType.FileUpload) {
    -                                   final DiskFileUpload fileUpload = 
(DiskFileUpload) data;
    -                                   checkState(fileUpload.isCompleted());
    -
    -                                   final Path dest = 
uploadDir.resolve(Paths.get(UUID.randomUUID() +
    -                                           "_" + 
fileUpload.getFilename()));
    -                                   fileUpload.renameTo(dest.toFile());
    -                                   
ctx.channel().attr(UPLOADED_FILE).set(dest);
    +                           if 
(currentHttpRequest.getUri().equals(JobSubmitHeaders.getInstance().getTargetRestEndpointURL()))
 {
    --- End diff --
    
    I think the `FileUploadHandler` should not know about the 
`JobSubmitHandler`. Instead it should only be responsible for receiving 
uploaded files, storing them in a temp directory and then making them 
accessible to a downstream handler (e.g. through an `Attribute` in the 
`AttributeMap`). In order to defer the deserialization of the Json part of the 
payload, we could create a new `HttpRequest` which contains exactly the data 
sent as a `MemoryAttribute` (the branch which matches 
`InterfaceHttpData.HttpDataType.Attribute`).


> Extend JobSubmitHandler to accept jar files
> -------------------------------------------
>
>                 Key: FLINK-9280
>                 URL: https://issues.apache.org/jira/browse/FLINK-9280
>             Project: Flink
>          Issue Type: New Feature
>          Components: Job-Submission, REST
>    Affects Versions: 1.5.0
>            Reporter: Chesnay Schepler
>            Assignee: Chesnay Schepler
>            Priority: Critical
>             Fix For: 1.6.0, 1.5.1
>
>
> The job submission through the CLI first uploads all require jars to the blob 
> server, sets the blob keys in the jobgraph, and then uploads this graph to 
> The {{JobSubmitHandler}} which submits it to the Dispatcher.
> This process has the downside that it requires jars to be uploaded to the 
> blobserver before submitting the job graph, which does not happen via REST.
> I propose an extension to the the {{JobSubmitHandler}} to also accept an 
> optional list of jar files, that were previously uploaded through the 
> {{JarUploadHandler}}. If present, the handler would upload these jars to the 
> blobserver and set the blob keys.



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