Dear fellow users,
I am having a peculiar problem trying to replace the MySQL database
server which works on my Kannel application server.
I have Kannel application in separate VM, and MySQL database in another.
So far I understood and have been working with Kannel is that my Kannel
has SQLBox installed, which picks SMS from kannelDb.send_sms table and
stores in local redis, then sends to SMPP smsc and writes to
kannelDb.sent_sms table of the MySQL server.
My Kannel application information is as below:
Kannel bearerbox version `1.4.5'. Build `Jan 10 2024 17:30:02', compiler
`9.4.0'. System Linux, release 5.4.0-170-generic, version #188-Ubuntu
SMP Wed Jan 10 09:51:01 UTC 2024, machine x86_64. Hostname localhost, IP
127.0.0.1. Libxml version 2.9.10. Using OpenSSL 1.1.1f 31 Mar 2020.
Compiled with MySQL 5.7.42, using MySQL 5.7.42. Using hiredis API 1.2.0
Using native malloc.
Kannel application server is installed on a Ubuntu 20.04.6 LTS. And my
running MySQL server is running on a Ubuntu 22.04.3 LTS, MySQL version
8.0.36 (VM1). Now, when the application is running with this DB server,
the performance is smooth. The throughput of my SMPP SMSC are 100 each
in 4 separate SMSC, so I see that kannelDb.send_sms table clears up
almost instantly. But, I have a problem with the running DB server VM
physical host machine; and for this, I need to shift the DB server in
another VM. I have tried with two separate VMs: one with Ubuntu 22.04.3
LTS with MySQL 8.0.36 (VM2) and another with Ubuntu 22.04.3 with MySQL
8.0.41 (VM3). But strangely whenever I try to run Kannel with VM2 or
VM3, the performance gets really low. Entries of kannelDb.send_sms does
not get cleared as fast as it does with VM1; instead, I get only around
10 TPS in sending SMS.
Can anyone please suggest what can be the issue? I have the same
configuration for MySQL in all the three database server VMs. And I use
the working IP address of VM1 whenever I try with either VM2 or VM3. But
cannot find out the reason for the problem. Please help.
Please let me know if you need any further information.
--
/Thanks and Regards,/
*Biswajit Kumar* | AGM, P&D
Bangla Phone Ltd. <http://www.banglaphone.net.bd/> | +8801833103909
<tel:+8801833103909>
