Re: Tomcat 9.0.65 suspected memory leak

[Mark Thomas]

On 04/02/2023 22:06, Chen Levy wrote:

Mark, I believe a change in Tomcat 9.0.65 causes it to accumulate open 
connections:
I took a fresh Tomcat, unzipped and modified server.xml with only the following:
1. Changed port 8080 to port 80
2. Changed port 8443 to port 443
3. Uncommented the nio connector and added the snippet
        <UpgradeProtocol className="org.apache.coyote.http2.Http2Protocol" />
         <SSLHostConfig>
             <Certificate certificateKeystoreFile="conf/tomcat_noroot.p12"
                          certificateKeyAlias="..."
                          certificateKeystorePassword="..."
                          certificateKeystoreType="PKCS12"/>
         </SSLHostConfig>

I used Chrome to call the default index.html with Wireshark in the middle:
With 9.0.63 - 20 seconds after the last data frame, came a GOAWAY from the 
server.
With 9.0.65 - No GOAWAY was sent, and the server and client kept ACKing each 
other.

Tomcat 9.0.71 and 10.1.5 behaved similarly - no GOAWAY was sent.

Test was conducted with:
Wireshark Version 4.0.3 (v4.0.3-0-gc552f74cdc23)
Chrome Version 109.0.5414.120
JDK 17.0.6+10
Windows 11

Thanks for the reproduction details. I'll take a look now.

Mark

---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org
For additional commands, e-mail: users-h...@tomcat.apache.org