负载均衡会话保持(session persistence, session stickiness, session affinity)
问题的产生Animportantissuewhenoperatingaload-balancedserviceishowtohandleinformationthatmustbekeptacrossthemultiplerequestsinauser’ssession.Ifthisinformationisstoredlocallyononebackendserver,thensubsequent