[OpenSIPS-Users] Load Balancer module only sending calls to 4 servers in a group

[Bobby Smith]

Hello,

I've currently got the load balancer set up with a single group (we'll call
it "handset", as our opensips server using the loadbalancing is just acting
as a registrar/proxy to a softswitch).

This is how it's defined in the database table:

"1";1;"sip:1.2.3.4";"handset=75";"server1"
"2";1;"sip:sip:1.2.3.5";"handset=75";"server2"
"3";1;"sip:sip:1.2.3.6";"handset=75";"server3"
"4";1;"sip:sip:1.2.3.7";"handset=75";"server4"
"5";1;"sip:sip:1.2.3.8";"handset=75";"server5"
"6";1;"sip:sip:1.2.3.9";"handset=75";"server6"
"7";1;"sip:sip:1.2.3.10";"handset=75";"server7"
"8";1;"sip:1.2.3.11";"handset=75";"server8"
"9";1;"sip:1.2.3.12";"handset=75";"server9"
"10";1;"sip:1.2.3.13";"handset=75";"server10"
"11";1;"sip:1.2.3.14";"handset=75";"server11"
"12";1;"sip:1.2.3.15";"handset=75";"server12"
"13";1;"sip:1.2.3.16";"handset=75";"server13"

When active, it seems the load balancer is only sending to the first 4
servers in the list:

[root at cloud_registrar_lb mnt]# opensipsctl fifo lb_list
Destination:: sip:1.2.3.4 id=1
    Resource:: handset max=75 load=75
Destination:: sip:1.2.3.5 id=2
    Resource:: handset max=75 load=75
Destination:: sip:1.2.3.6 id=3
    Resource:: handset max=75 load=75
Destination:: sip:1.2.3.7 id=4
    Resource:: handset max=75 load=75
Destination:: sip:1.2.3.8 id=5
    Resource:: handset max=75 load=0
Destination:: sip:1.2.3.9 id=6
    Resource:: handset max=75 load=0
Destination:: sip:1.2.3.10 id=7
    Resource:: handset max=75 load=0
Destination:: sip:1.2.3.11 id=8
    Resource:: handset max=75 load=0
Destination:: sip:1.2.3.12 id=9
    Resource:: handset max=75 load=0
Destination:: sip:1.2.3.13 id=10
    Resource:: handset max=75 load=0
Destination:: sip:1.2.3.14 id=11
    Resource:: handset max=75 load=0
Destination:: sip:1.2.3.15 id=12
    Resource:: handset max=75 load=0
Destination:: sip:1.2.3.16 id=13
    Resource:: handset max=75 load=0

I don't see anything in the log identifying that we're even try to send
anything beyond the first 4 servers, and an ngrep confirms that it's
essentially balancing messages to just the first four without trying the
rest.

Any thoughts?  I'm using the 1.5.1 version of the load balancer.

Thanks,

Bobby S
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