Hi there, I intermittently run into this error with my CAS 4.1.9 overlay when deployed on two CAS servers with load balancer in the front. Memcached are running on each CAS server.
cas.properties has entry like this: memcached.servers=devcas01.dev.medplus.com:11211,devcas02.dev.medplus.com:11211 memcached.protocol=BINARY memcached.locatorType=CONSISTENT memcached.failureMode=Cancel memcached.hashAlgorithm=KETAMA_HASH Basically, the request goes to one CAS server, user authenticated. Then, the /serviceValidate call lands on the other CAS server, but it cannot find the ticket. Could there be a race condition? Before the ticket is physically stored in memcache, the call for fetching has already arrived? I know that memcached does NOT replicate. any ticket is stored in one single node, so there is no replication issue. Any comments? Yan 2016-07-29 18:43:17,643 INFO [org.jasig.cas.CentralAuthenticationServiceImpl] - Granted ticket [ST-1-fIfU1g2irBoeDBafgEs2-devcas01.dev.medplus.com] for service [http://localhost:7080/hcp-server-web/login/cas] for user [tkoenig2] 2016-07-29 18:43:17,646 INFO [org.jasig.inspektr.audit.support.Slf4jLoggingAuditTrailManager] - Audit trail record BEGIN ============================================================= WHO: tkoenig2 WHAT: ST-1-fIfU1g2irBoeDBafgEs2-devcas01.dev.medplus.com for http://localhost:7080/hcp-server-web/login/cas ACTION: SERVICE_TICKET_CREATED APPLICATION: CAS WHEN: Fri Jul 29 18:43:17 UTC 2016 CLIENT IP ADDRESS: 172.18.58.129 SERVER IP ADDRESS: 172.18.38.109 ============================================================= 172.18.58.129 - - [29/Jul/2016:18:43:17 +0000] "*GET /cas/serviceValidate*?ticket=ST-1-fIfU1g2irBoeDBafgEs2-devcas01.dev.medplus.com&service=http%3A%2F%2Flocalhost%3A7080%2Fhcp-server-web%2Flogin%2Fcas HTTP/1.1" 200 271 "-" "Java/1.8.0_65" 2016-07-29 18:42:41,744 INFO [org.jasig.cas.services.DefaultServicesManagerImpl] - Reloading registered services. 2016-07-29 18:42:42,003 INFO [org.jasig.cas.services.DefaultServicesManagerImpl] - Loaded 17 services. 2016-07-29 18:43:17,806 ERROR [org.jasig.cas.ticket.registry.MemCacheTicketRegistry] - *Failed fetching* [ST-1-fIfU1g2irBoeDBafgEs2-devcas01.dev.medplus.com, java.lang.RuntimeException: Exception waiting for value] 2016-07-29 18:43:17,806 INFO [org.jasig.cas.CentralAuthenticationServiceImpl] - Service ticket [ST-1-fIfU1g2irBoeDBafgEs2-devcas01.dev.medplus.com] does not exist. 2016-07-29 18:43:17,810 ERROR [org.jasig.cas.ticket.registry.MemCacheTicketRegistry] - Failed fetching [ST-1-fIfU1g2irBoeDBafgEs2-devcas01.dev.medplus.com, java.lang.RuntimeException: Exception waiting for value] 2016-07-29 18:43:17,818 INFO [org.jasig.inspektr.audit.support.Slf4jLoggingAuditTrailManager] - Audit trail record BEGIN ============================================================= WHO: audit:unknown WHAT: ST-1-fIfU1g2irBoeDBafgEs2-devcas01.dev.medplus.com ACTION: SERVICE_TICKET_VALIDATE_FAILED APPLICATION: CAS WHEN: Fri Jul 29 18:43:17 UTC 2016 CLIENT IP ADDRESS: 172.18.58.129 SERVER IP ADDRESS: 172.18.38.110 -- You received this message because you are subscribed to the Google Groups "CAS Community" group. To unsubscribe from this group and stop receiving emails from it, send an email to cas-user+unsubscr...@apereo.org. To post to this group, send email to cas-user@apereo.org. Visit this group at https://groups.google.com/a/apereo.org/group/cas-user/. To view this discussion on the web visit https://groups.google.com/a/apereo.org/d/msgid/cas-user/57f03596-0f26-4967-a7fc-befc6331b56e%40apereo.org. For more options, visit https://groups.google.com/a/apereo.org/d/optout.
