https://bz.apache.org/bugzilla/show_bug.cgi?id=62899
Bug ID: 62899
Summary: Async servlet over HTTP/2 on embedded server
sporadically timeout forever when reading near end of
request
Product: Tomcat 9
Version: 9.0.12
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P2
Component: Servlet
Assignee: dev@tomcat.apache.org
Reporter: zdap...@google.com
Target Milestone: -----
Steps to produce:
1. Install nghttp (https://github.com/http2/http2-spec/wiki/Tools)
2. Compile the following java code.
https://github.com/dapengzhang0/servlettest/blob/master/src/main/java/AsyncReadEmbedded.java
(The program runs a simple servlet using Embedded Tomcat server. It creates a
file with 271828 bytes, and use nghttp to send a POST request over HTTP/2 to
the servlet uploading the data from the file. It will fail if the request
timeout or any exception is thrown, otherwise it succeeds.)
3. Write a script to repeatedly run the code until it fails. (My experiments
showed it sporadically fails once every less than 100 runs. The failure is read
timeout near the end of request data, when there is half close from the client
and a window update)
Thanks.
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