Thanks Chris - Sorry for the unintended anonymity. My name's Alec. So set the LB stickiness to the same <session-timeout>n</session-timeout> number as in web.xml.
"Assuming that the lb is updating the last-touch time for every request mentioning the session" Could you explain this a little further. How would the LB be monitoring requests mentioning the session. Would that be a request that had *JSessionID *in it? TIA, Alec On Wed, Jul 24, 2013 at 2:30 PM, Christopher Schultz < ch...@christopherschultz.net> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA256 > > To whom it may concern, > > (Might we know your real name? The above introduction feels so > impersonal...) > > On 7/24/13 11:13 AM, Tomcat Random wrote: > > Setup: - Two physical servers each running Tomcat 7.0.42 - Brocade > > load balancer in front > > > > The load balancer is set to source IP persistence for 5 minutes. > > This time can be changed of course. > > > > The thing I don't understand is 5 minutes or 5 hours - at then end > > that time limit the user can be sent to the other server and lose > > data stored in the session. > > > > So why do sticky sessions matter when session replication turned on > > in Tomcat? Is a performance issue? > > Sticky sessions aren't really necessary when session replication is > on. On the other hand, session information takes non-zero time to > propagate between the members of the cluster, so using session > stickiness may reduce the risk of out-of-date sessions when a user > randomly switches servers in the middle of a series of high-rate requests. > > I would recommend setting the stickiness timeout to the same as the > session timeout, assuming that the lb is updating the last-touch time > for every request mentioning the session. If that's not happening, > then it probably doesn't really matter what you set your session > stickiness timeout to be. > > - -chris > -----BEGIN PGP SIGNATURE----- > Version: GnuPG/MacGPG2 v2.0.17 (Darwin) > Comment: GPGTools - http://gpgtools.org > Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ > > iQIcBAEBCAAGBQJR8B08AAoJEBzwKT+lPKRY7mwQAMN3eUGpNJ3ZgHQaGQbQJsel > z93LU7OvNVDK1/I5P0HWAezYJ7CCrjKAVBz2IjXqTyeODrS8l6ubc8HKCFexPZlG > PNBzr4TGx+OeKrlkVGWA7w8mo8LFPcWIwxKmVHPaVHBa30B4SXFXiGqanycn04F/ > VRGFBCC1R3+NLhmn7Cag3ZpfhsnCN4a3XAYy0ZvrW/rARTOpGp68kccJppgv+Uab > RYZzmGCYQZeLfI2j7BFaAntc38di9+O8X68N/nC4GqIzE+XvDD/ZkYFlvYtzBxNn > k4MaoRS05KV53qbZrMqSldjU+heIfufB1mF+f/xXlPkOX/fZPVsH6fxEyuS6WPl5 > 4qd/Cs5XXNEvMbz/S4JY8ZtnmSONZr8xffHfJf9rUzNiVqcXGcIOkbg00ZHViUuF > c/0ADkbrwe8nStChlRfj6h6xybiKo7404g90PA8Op3C4CwO22SOus4tCZdDwXw5H > N9Kv6DORgPZlH9XaBJzEf6M1n1EruOI1pQ/LC9Lbc3pSAod4QRKbP1zDmfr61UG8 > MF2fsXmvCCIie70rA2xlTk7PRpTwhPCbs7DRDrh/GavPeBomtl43fJSLfNczBMq8 > zTpWfgSgOzOi+VR0+jV2JXQTCQ17nj4Jikl3VR3rUv+11C9rxOjB6vsc3Ir/FHju > NKrqyHotyHH10s82Do4Z > =Cr56 > -----END PGP SIGNATURE----- > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > >
