Hi Chris - I added this value to the Engine container - backgroundProcessorDelay="20"
This has made a big improvement - there is much more frequent clear down of the sessions. Is there a config setting for maximum session age? The reason for asking is that in a REST stateless environment the concept is to tear down after each request is served. However - this may have performance implications for Tomcat. Are there any best practices papers / pointers for stateless setup? Theo From: Christopher Schultz <ch...@christopherschultz.net> To: Tomcat Users List <users@tomcat.apache.org>, Date: 04/09/2015 18:39 Subject: Re: Tomcat 8 Session Timeout -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Theo, On 9/4/15 6:14 AM, theo.swe...@avios.com wrote: > Hi Chris - the servlet spec states "If the time out is 0 or less, > the container ensures the default behavior of sessions is never to > time out." > > Currently the timeout value is set to 2 minutes. > > However the problem is persisting - the environment is using > Jersery Servlet 1.3 for REST. > > If we look inside web service stats - > > Longest session alive time: 183 s / Processing time: 625 ms Longest > session alive time: 207 s / Processing time: 232 ms > > The current session timeout is set to 120 seconds, so neither of > these above session times make any sense, unless a dependency is > hanging? Remember that the session timeout is not session age. If you have a process which is touching the session more often than every 2 minutes or so, then the session will live indefinitely. Is the background processing thread still running? If it dies, your sessions will never time out. Also, the background processing thread is the thread that reaps old sessions... if you have the background processor thread set to run infrequently, you'll see the behavior you describe. - -chris -----BEGIN PGP SIGNATURE----- Comment: GPGTools - http://gpgtools.org iQIcBAEBCAAGBQJV6dciAAoJEBzwKT+lPKRYyogP+wfP5lNV8SxFTNDmiwLYxG/9 GnUxSQN8rQmWI6r1pl4UpWU+WFoUtL2BCTfnUuH2qP6Pg0KWn46P4Lon5XnThEqk 4mnHNCe4NYdGlw4rvVYgdy4zTP62hFvSm3ECb/QkZ1gcO1f8w4+0wqZh5k1g+0PQ HkOg9SYSHRAUUKtG2YBPZWbEMnjKnkQKeKO3WjNBDLTbEU9mMyyJgZCsJCC4fmZa sJN8yFW7JcG0jhhsEoBzYznT1dLxNliNs9kMiINoS1wWmIjHLHnHvaTDqDCE4Npd VQh/ZrI7paRdVI4wOJ299CuZ4cpB9lxWEKi4vQAP5Jg/EgZrACrmZFnPMJG5np/v lR2g+KCNxIvIpIlaGLbUOn4Ah0QMrfPEDFsLXHlYjfixdIrDjugbqdNnVYRvSOSt LsR+xZcPOJ/ZiJCnD+2MK8dy8QYgq62oW8xpvald58x/gUk/uR8IuwdvswTIUVTV +5k2YUcL+xcH1uEKHyMK3KCjty8aC+Rq+oEpkJjyFKJA1K0x161PIAdFq8P50VLn rcJUjxTIcMP7hgg3BCQzdXH5qucVnFTlHNwKrX4MoT9LsGiraTOqhRt5EJLWBy+/ oYg3k/Vgkm2HzmRBuMGydv8RMNCq2hZaEXWDKoMtWRRvmYTOKcNC4nUiE/V8Dbr0 KaYwkgTvycLJzzohkMIn =9riB -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org ----------------------------------------------------------------------------------------------------------------------------------------- The Mileage Company Limited is a limited company registered in England under company number 2260073 whose registered office address is at Astral Towers, Betts Way, London Road, Crawley, West Sussex, RH10 9XY. This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager. This footnote also confirms that this email message has been swept by Mimecast for the presence of computer viruses. -----------------------------------------------------------------------------------------------------------------------------------------
