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https://issues.apache.org/jira/browse/TS-3752?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14692718#comment-14692718
 ] 

Masaori Koshiba commented on TS-3752:
-------------------------------------

Just send a request with Large Header like below or run 
[h2spec|https://github.com/summerwind/h2spec].
- http://apaste.info/yaU

In the loop start from 
[L237|https://github.com/apache/trafficserver/blob/master/proxy/http2/Http2ConnectionState.cc#L237],
 {{stream->decode_request_header}} returns {{0}} when received header size is 
larger than {{sizeof(buf)}}, because of this {{nbytes >= payload_length - 
params.pad_length}} in L261 never be true.

I'm going to send a patch for this today.

> Problem with larger headers and HTTP/2
> --------------------------------------
>
>                 Key: TS-3752
>                 URL: https://issues.apache.org/jira/browse/TS-3752
>             Project: Traffic Server
>          Issue Type: Bug
>          Components: HTTP/2
>            Reporter: Bryan Call
>            Assignee: Masaori Koshiba
>              Labels: yahoo
>             Fix For: 6.0.0
>
>
> There is a problem when ATS receives a HEADERS or CONTINUATION frame on the 
> HEADERS frame and there is no end of header to be decoded.  If there is 1 
> small header at the beginning of the frame it will work, but if a large 
> header either starts at the beginning of the frame or started on the previous 
> frame and don't end until the next frame then the decoded_bytes will be 0.  
> This will cause a COMPRESSION_ERROR to be send to the client with a GOAWAY 
> frame.



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