When user goes through LB the server page has stripped information
I have created a pretty simple round robin load balancing for a user with three servers. As a part of this I also have DNS LB in place that sends the traffic to two VIPs that are connected to the three nodes in a pool I have created on my LTM F5. User accesses the LB DNS URL I provide via Https://<>.com > VIP > Pool > Nodes. There is a certificate applied to the clientssl and serverssl profiles attached to the VIPs. The user is able to get to their backend servers/nodes when going through the load balancer, but we are coming across an interesting issue. When the user goes through the F5 the server dashboard page they usually see is stripped of information on that dashboard. Typically, there would be tiles shown on the server dashboard, but it is just the basic UI and none of the tiles. When the user goes directly to their server, all the information/tiles are shown as normal. I have never experienced this problem before and am not sure how to prove out the F5 is causing the issue or how it is happening. Any insight would be greatly appreciated! *Attached file shows what I'm explaining.
Pool round Robin not working with standard virtual server
I have a standard HTTPS virtual server configured with two nodes in the pool. There is no persistence setting enabled and the load balancing method is round robin. For some reason, after I browse to the site and establish a connection with a backend server in the pool, all my future requests go to the same server and it behaves in a way that indicates some persistence is enabled. For example, when I refresh my browser, open the site in a new browser, and open the site in an incognito browser, all my requests keep going to the same node. You can see below that I tried this multiple times and kept getting connected to one server and the number of connections on that server was increasing. According to my research, because there is no persistence profile setting, the load balancing method is round robin, and both servers are available and able to accept traffic, every time I refresh or open the site in a new tab or browser, I should be randomly assigned to a server for that connection via round robin load balancing. But this is not what I observe. Is there a reason that my virtual servers are showing persistence by default? Any ideas? Here are some images of my config:
Better Round Robin
Problem this snippet solves: Implements Round Robin LB to avoid CMP idiosyncracies How to use this snippet: Attach this iRule to virtual server Code : when RULE_INIT { set static::betterRoundRobinDebug 1 } when CLIENT_ACCEPTED { set betterRoundRobinPoolMemberPick [lindex [active_members -list [LB::server pool]] [expr {[table incr [virtual]_count] % [active_members [LB::server pool]]}]] if {$static::betterRoundRobinDebug} { log "LB Pool: [LB::server pool] - ActiveMembersList: [active_members -list [LB::server pool]] - Attempt to Pick: $betterRoundRobinPoolMemberPick" } pool [LB::server pool] member [lindex $betterRoundRobinPoolMemberPick 0] [lindex $betterRoundRobinPoolMemberPick 1] } Tested this on version: 12.1what is round robin algorithm in deep
Hi I have 12 client access VS with have 12 pool member and perform source persist at fist when client 1 access VS >> LB to webserver1. when client 1 access VS again >> LB to webserver1 due to source persist but when client 2 access VS >> LB to webserver1 !! question is Why client 2 LB to webserver1 ? RR method is to LB to server "next in line" so this client 2 should LB to webserver2, am I correct? From this problem we experience Uneven LB (some webserver have no client LB to it and some webserver have more client than the rest) How is Round robin algorithm actually do? Thank youRound robin not working
Hi I have load test with 2 client and 2 webserver with VS using source persist when client1 access VS >> it's go to webserver1 (From this time client1 will access only ws1 due to source persist) but when client2 access VS >> it's go to webserver1 too !! (and webserver2 have no connection cause all client access ws1 due to src persist) Why client2 didn't go to webserver2 due to Round robin loadbalance method? Thank you
