https://issues.apache.org/bugzilla/show_bug.cgi?id=50975
Summary: IIS connector times out on Transfer Encoded content,
never sending the chunked content
Product: Tomcat Connectors
Version: unspecified
Platform: PC
Status: NEW
Severity: major
Priority: P2
Component: isapi
AssignedTo: dev@tomcat.apache.org
ReportedBy: aaron.john...@soa.com
Created an attachment (id=26799)
--> (https://issues.apache.org/bugzilla/attachment.cgi?id=26799)
Zip of logs and network traces
We have a client application making calls through web services that are using
Transfer-Encoding: chunked. This scenario hasn't ever worked possibly due to
bug 48940 and bug 48763. It works fine against a wide variety of other setups
(JBoss/WebSphere/WebLogic/Apache/IBM IHS/iPlanet) that don't include the IIS
connector. In the isapi_redirect.properties file I have
enable_chunked_encoding=true -- though not sure it matters post 1.2.28. Here
are the symptoms:
1.2.27 (chunked and non chunked versions) - Some POST/T-E=chunked requests
work, others fail.
1.2.28 (chunked and non chunked versions) - Some POST/T-E=chunked requests
work, others fail.
1.2.30 - Read times out on the client waiting for a response
1.2.31 - Read times out on the client waiting for a response
I'm attributing the failure of 1.2.27/28 on already known/fixed bugs and
focusing on the behavior for 1.2.31.
Network tracing between both the client and connector and the connector and
JBoss 4.3.0 indicate that the client is sending a complete request and that the
connector is still waiting for something else from the client, or has received
it but isn't sending the chunked content to JBoss.
Specifically of interest is that the connector is sending:
REQ:POST /rm/services/ServerInfo.asmx
But never sends the chunked content
The attachment has two sets of files for two scenarios, a WireShark network
trace and the isapi_redirect.log.
Environment:
The client_to_connector scenario was on Windows 7 x64 / IIS 7.5.7600.16385 /
isapi_redirect-1.2.31.dll for amd64
The connector_to_jboss scenario was on Windows Server 2008 x64 / IIS
7.5.7600.16385 / isapi_redirect-1.2.31.dll for amd64
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