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https://issues.apache.org/jira/browse/TS-2411?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13869025#comment-13869025
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Roee Gil commented on TS-2411:
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some more information for this case:
when transform null or buffered is made, ATS reply to client URL with missing
content length header.
this is not constant matter, most case ATS really drop the content header, but
in some case the header is still there when sending URL back to client
> TS Http byte get functions does not return the true number, for server
> response body byte get
> ---------------------------------------------------------------------------------------------
>
> Key: TS-2411
> URL: https://issues.apache.org/jira/browse/TS-2411
> Project: Traffic Server
> Issue Type: Bug
> Components: HTTP
> Reporter: Roee Gil
> Assignee: Brian Geffon
> Fix For: 4.2.0
>
>
> When using the example of null-transform, adding TS_EVENT_HTTP_TXN_CLOSE to
> hooks, and counting byte number, I get:
> // server -> proxy
> TSHttpTxnServerRespHdrBytesGet(txnDB);
> TSHttpTxnServerRespBodyBytesGet(txnDB);
> // proxy -> client
> TSHttpTxnClientRespHdrBytesGet(txnDB);
> TSHttpTxnClientRespBodyBytesGet(txnDB);
> 1. server side response body = 0
> 2. client side response body = (payload size)
> when inspecting this issue, it seems that VConnection is downloading the
> content but, this does not count in server response byte get
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