[OpenSIPS-Users] Got a problem with opensips 1.9 + LB + 3 asterisk servers -- Simultaneous calls never more than 400 calls

[Erwan Desvergnes]

Here is my configuration:

1 Opensips Server in front
and 3 asterisk server connected to pstn and users are created using
A2billing

Users register on Opensips and send call

All users a created using A2Billing
Then calls on opensips never gone more than 400
and on client i've got message authrejected
when i take look a sip trace, on client using tcpdump i saw than auth is
well send but no reply from opensips
Our customer are call center with heavy CPS
and predictive dialling
on manual call no prob for auth but more cps is important more auth problem
we got
here is my configuration


listen=udp:a.d.d.ip:5060 # CUSTOMIZE ME
debug=1
log_stderror=no
log_facility=LOG_LOCAL6
fork=yes
children=32
dns_try_ipv6=no
auto_aliases=no
disable_tcp=yes
server_signature=no
####### Modules Section ########
#set module path
mpath="/lib64/opensips/modules/"
#### SIGNALING module
loadmodule "signaling.so"
#### StateLess module
loadmodule "sl.so"
#### Transaction Module
loadmodule "tm.so"
modparam("tm", "fr_timer", 5)
modparam("tm", "fr_inv_timer", 30)
modparam("tm", "restart_fr_on_each_reply", 0)
modparam("tm", "wt_timer", 10)
modparam("tm", "onreply_avp_mode", 1)
#### Record Route Module
loadmodule "rr.so"
modparam("rr", "append_fromtag", 1)
#### MAX ForWarD module
loadmodule "maxfwd.so"
#### SIP MSG OPerationS module
loadmodule "sipmsgops.so"
#### FIFO Management Interface
loadmodule "mi_fifo.so"
modparam("mi_fifo", "fifo_name", "/tmp/opensips_fifo")
modparam("mi_fifo", "fifo_mode", 0666)
#### URI module
loadmodule "uri.so"
modparam("uri", "use_uri_table", 0)
#### USeR LOCation module
loadmodule "usrloc.so"
modparam("usrloc", "nat_bflag", 10)
modparam("usrloc", "db_mode",   0)
#### REGISTRAR module
loadmodule "registrar.so"
modparam("registrar", "tcp_persistent_flag", 7)
#### ACCounting module
#loadmodule "acc.so"
#modparam("acc", "early_media", 0)
#modparam("acc", "report_cancels", 1)
#modparam("acc", "detect_direction", 1)
#modparam("acc", "db_flag", 1)
#modparam("acc", "log_level", 5)
#modparam("acc", "log_flag", 1)
#modparam("acc", "db_missed_flag", 2)
#modparam("acc", "failed_transaction_flag", 3)
#modparam("acc", "db_extra", "from_uri=$fu; to_uri=$tu") #Extra data
# ----- sip_trace ------
#loadmodule "siptrace.so"
#modparam("siptrace", "trace_on", 1)
#modparam("siptrace", "enable_ack_trace", 1)
#modparam("siptrace", "table", "sip_trace")
#modparam("siptrace", "trace_flag", 22)
#### CACHEDB_REDIS module
loadmodule "cachedb_redis.so"
modparam("cachedb_redis","cachedb_url","redis://localhost:6379/")
loadmodule "db_mysql.so"
modparam("db_mysql", "exec_query_threshold", 60000)


Thanks for any idea or help
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