Syslog rapid growth after U7 upgrade

OLOL

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Hi,

We're seeing rapid growth of syslog file (approx 5MB every minute) since upgrade to U7. I'm seeing lots of lines relating to resiprocate which seem to be info logs from 3CXPhoneSystem - has anyone else seen this since upgrade? It filled our server storage up over a few hours since the upgrade, and I'm currently back up after deleting an 8GB syslog file, but it's filling up again...

Thanks
Will
 
See it too. 3CX also "turned off Activity Logs" but I can't seem to stop the log from expanding rapidly.
 
sample log entries, looks per-extension so maybe more impactful with a larger number of them:
Code:
2025-10-20T12:57:03.778517-05:00 3cx-**** 3CXPhoneSystem[720]: INFO | 20251020-125703.778 |  | RESIP:DUM | 0x7f863dffb6c0 | /Sources/3rdParty/resiprocate/resip/dum/ServerRegistration.cxx:50 | accepted a registration sip:[email protected]
2025-10-20T12:57:03.778621-05:00 3cx-**** 3CXPhoneSystem[720]: INFO | 20251020-125703.778 |  | RESIP:DUM | 0x7f863dffb6c0 | /Sources/3rdParty/resiprocate/resip/dum/ServerRegistration.cxx:383 | Adding sip:[email protected] -> <sip:[email protected]:5063;rinstance=eac3705fa01374c6>
2025-10-20T12:57:03.778695-05:00 3cx-**** 3CXPhoneSystem[720]: INFO | 20251020-125703.778 |  | RESIP:DUM | 0x7f863dffb6c0 | /Sources/3rdParty/resiprocate/resip/dum/ServerRegistration.cxx:50 | accepted a registration sip:[email protected]
2025-10-20T12:57:03.778794-05:00 3cx-**** 3CXPhoneSystem[720]: INFO | 20251020-125703.778 |  | RESIP:DUM | 0x7f863dffb6c0 | /Sources/3rdParty/resiprocate/resip/dum/ServerRegistration.cxx:383 | Adding sip:[email protected] -> <sip:[email protected]:5063;rinstance=9dd35bb52486dad9>
2025-10-20T12:57:03.778888-05:00 3cx-**** 3CXPhoneSystem[720]: INFO | 20251020-125703.778 |  | RESIP:DUM | 0x7f863dffb6c0 | /Sources/3rdParty/resiprocate/resip/dum/ServerRegistration.cxx:50 | accepted a registration sip:[email protected]
2025-10-20T12:57:03.825216-05:00 3cx-**** 3CXPhoneSystem[720]: INFO | 20251020-125703.825 |  | RESIP:DUM | 0x7f863dffb6c0 | /Sources/3rdParty/resiprocate/resip/dum/ClientRegistration.cxx:313 | requesting refresh of ClientRegistration sip:user@SIPTRUNK
2025-10-20T12:57:10.213886-05:00 3cx-**** 3CXPhoneSystem[720]: INFO | 20251020-125710.213 |  | RESIP:DNS | 0x7f863e7fc6c0 | /Sources/3rdParty/resiprocate/rutil/dns/AresDns.cxx:397 | DNS initialization: found  1 name servers
2025-10-20T12:57:10.214219-05:00 3cx-**** 3CXPhoneSystem[720]: INFO | 20251020-125710.213 |  | RESIP:DNS | 0x7f863e7fc6c0 | /Sources/3rdParty/resiprocate/rutil/dns/AresDns.cxx:408 |  name server: DNS-IP-HERE
2025-10-20T12:57:10.214281-05:00 3cx-**** 3CXPhoneSystem[720]: INFO | 20251020-125710.213 |  | RESIP:DNS | 0x7f863e7fc6c0 | /Sources/3rdParty/resiprocate/rutil/dns/AresDns.cxx:554 |  No changes in DNS server list
2025-10-20T12:57:10.814749-05:00 3cx-**** 3CXPhoneSystem[720]: INFO | 20251020-125710.814 |  | RESIP:TRANSACTION | 0x7f863e7fc6c0 | /Sources/3rdParty/resiprocate/resip/stack/TuSelector.cxx:84 | Stats message
2025-10-20T12:57:10.814900-05:00 3cx-**** 3CXPhoneSystem[720]: WARNING | 20251020-125710.814 |  | RESIP:STATS | 0x7f863e7fc6c0 | /Sources/3rdParty/resiprocate/resip/stack/StatisticsMessage.cxx:96 | RESIP:TRANSACTION


Log directory after we upgraded Oct 16, 4 days ago:
Code:
-rw-r----- 1 root adm 55272232 Oct 20 12:57 syslog
-rw-r----- 1 root adm 101147053 Oct 19 00:00 syslog.1
-rw-r----- 1 root adm 18500 Oct 12 00:00 syslog.2.gz
-rw-r----- 1 root adm 17858 Oct 5 00:00 syslog.3.gz
-rw-r----- 1 root adm 21155 Sep 28 00:00 syslog.4.gz
-rw-r----- 1 root adm 4883 May 18 2024 syslog.6.gz
-rw-r----- 1 root adm 5036 May 17 2024 syslog.7.gz

Edit: yes those are compressed but still very small:
compressed uncompressed ratio uncompressed_name
18500 147948 87.5% syslog.2
 
Last edited:
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Can confirm I'm seeing these logs as well in journalctl.
 
Same, a customer of ours with a tightly-dimensioned 3CX host ran out of disk space because of this issue. Seemingly all our hosts with U7 see rapid syslog growth.
 
We have been informed that we are working on a solution and will notify once it becomes available.
 
Please note that we have released a hotfix for this issue, which is now available in the Admin Console under System > Updates.

Kindly apply the fix, which will update your system to Build 20.0.7.1060 (Update 7).

https://www.3cx.com/blog/releases/v20-u7-hotfix/
 
Last edited:

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