Correct, I tested it: Tested with HTTP connector
<Connector port="8080" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8443" maxParameterCount="1000" /> and it loaded Native 1: 14:41:48.471 INF> (main) (org.apache.catalina.core.AprLifecycleListener#lifecycleEvent) Loaded Apache Tomcat Native library [1.3.1] using APR version [1.7.4]. 14:41:48.471 INF> (main) (org.apache.catalina.core.AprLifecycleListener#lifecycleEvent) APR capabilities: IPv6 [true], sendfile [true], accept filters [false], random [true], UDS [true]. 14:41:48.471 INF> (main) (org.apache.catalina.core.AprLifecycleListener#lifecycleEvent) APR/OpenSSL configuration: useAprConnector [false], useOpenSSL [true] 14:41:48.489 INF> (main) (org.apache.catalina.core.AprLifecycleListener#initializeSSL) OpenSSL successfully initialized [OpenSSL 3.0.14 4 Jun 2024] Then changed protocol protocol="org.apache.coyote.http11.Http11NioProtocol" but it still loaded only Native 1. Then renamed tcnative-1.dll so that Tomcat does not find it. Then it loaded Native 2: 14:55:32.002 INF> (main) (org.apache.catalina.core.AprLifecycleListener#lifecycleEvent) Loaded Apache Tomcat Native library [2.0.9] using APR version [1.7.6]. 14:55:32.002 INF> (main) (org.apache.catalina.core.AprLifecycleListener#lifecycleEvent) APR capabilities: IPv6 [true], sendfile [true], accept filters [false], random [true], UDS [true]. 14:55:32.002 INF> (main) (org.apache.catalina.core.AprLifecycleListener#lifecycleEvent) APR/OpenSSL configuration: useAprConnector [false], useOpenSSL [true] 14:55:32.021 INF> (main) (org.apache.catalina.core.AprLifecycleListener#initializeSSL) OpenSSL successfully initialized [OpenSSL 3.5.0 8 Apr 2025] -Harri -----Original Message----- From: Mark Thomas <ma...@apache.org> Sent: perjantai 12. syyskuuta 2025 17.47 To: users@tomcat.apache.org Subject: Re: Tomcat Native 1.3.1 vs 2.0.9 On 12/09/2025 15:33, Harri Pesonen wrote: > Thanks, currently we have option to use APR but NIO is the default. > Perhaps we drop APR and then switch to Tomcat Native 2. > > What if we have both tcnative-1.dll and tcnative-2.dll available, I > guess that Tomcat will use tcnative-2.dll with NIO and tcnative-1.dll > with APR ? 😊 You can only load one version of Tomcat Native into the JVM at any one time. If both are present, 1.x is used in preference to 2.x. Mark > > -Harri > > -----Original Message----- > From: Mark Thomas <ma...@apache.org> > Sent: perjantai 12. syyskuuta 2025 15.17 > To: Tomcat Users List <users@tomcat.apache.org> > Subject: Re: Tomcat Native 1.3.1 vs 2.0.9 > > On 12/09/2025 12:06, Harri Pesonen wrote: >> Hello, >> >> download page for Tomcat Native has two versions, 2.0.9 and 1.3.1: >> >> https://tomc/ >> at.apache.org%2Fdownload-native.cgi&data=05%7C02%7Charri.pesonen%40si >> n >> ch.com%7C1228e855b1974189438508ddf1f6e623%7C3b518aae89214a7b8497619d7 >> 5 >> 6ce20e%7C0%7C0%7C638932764925647778%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0e >> U >> 1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIld >> U >> IjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=plWNOFB8KZmjPF5SgY9wB3hlSP2BVbVuWr8xc >> n >> 5IYmM%3D&reserved=0 >> >> We are currently using 1.3.1 and there has not been so many changes lately, >> compare to version 2. >> I fail to find documentation for why one should use one or other, what is >> the difference between these two versions? > > The change log would be a good place to start: > https://eur03.safelinks.protection.outlook.com/?url=https%3A%2F%2Ftomc > at.apache.org%2Fnative-doc%2Fmiscellaneous%2Fchangelog.html&data=05%7C > 02%7Charri.pesonen%40sinch.com%7Ce179de03ec4a4a9592c608ddf20ba678%7C3b > 518aae89214a7b8497619d756ce20e%7C0%7C0%7C638932854046978831%7CUnknown% > 7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4z > MiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=R9FXJ9C49%2B%2 > BXLA7af10wzmn4ApRM%2BgD8YmiaxNyPH4c%3D&reserved=0 > > The 2.0.0 entry describes what was removed/changed between 1.3.1 and > 2.0.0 > >> Can I simply drop version 2 in place of version 1? >> The DLL names are different, 1.3.1 is tcnative-1.dll while 2.0.9 is >> tcnative-2.dll. > > If you want to use one of the APR connectors, you need to use 1.3.x. > > If you use NIO (or NIO2) with OpenSSL then 2.x is fine. > > Note: Tomcat is moving towards just supporting NIO (no NIO2, no APR) for HTTP > and AJP with OpenSSL support via Tomcat Native as an option for HTTP. > > Mark > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org