SOLVED named[8710]: none:104: 'max-cache-size 90%' - setting to 14259MB (out of 15843MB)

[risecompany]

Hi,

While Restarting DNS Server, I get an alert " server named[8710]: none:104: 'max-cache-size 90%' - setting to 14259MB (out of 15843MB) "
How we can solve this issue ?

 

[cPRex]

Hey there! Usually there are some more lines in that output that could give us some more detail. Do you have the rest of that message you could share?

 

[risecompany]

Restarting DNS Server
Waiting for “bind” to restart ………waiting for “named” to initialize ………finished.

Service Status
named (/usr/sbin/named -u named -c /etc/named.conf) is running as named with PID 25312 (systemd+/proc check method).

Startup Log
Mar 03 01:08:27 mysite.com named[25312]: automatic empty zone: view internal: A.E.F.IP6.ARPA
Mar 03 01:08:27 mysite.com named[25312]: automatic empty zone: view internal: B.E.F.IP6.ARPA
Mar 03 01:08:27 mysite.com named[25312]: automatic empty zone: view internal: 8.B.D.0.1.0.0.2.IP6.ARPA
Mar 03 01:08:27 mysite.com named[25312]: automatic empty zone: view internal: EMPTY.AS112.ARPA
Mar 03 01:08:27 mysite.com named[25312]: automatic empty zone: view internal: HOME.ARPA
Mar 03 01:08:27 mysite.com named[25312]: none:104: 'max-cache-size 90%' - setting to 14259MB (out of 15843MB)
Mar 03 01:08:27 mysite.com named[25312]: set up managed keys zone for view external, file 'external.mkeys'
Mar 03 01:08:27 mysite.com named[25312]: none:104: 'max-cache-size 90%' - setting to 14259MB (out of 15843MB)
Mar 03 01:08:27 mysite.com named[25312]: command channel listening on 127.0.0.1#953
Mar 03 01:08:27 mysite.com systemd[1]: Started Berkeley Internet Name Domain (DNS).

Log Messages
Mar 3 01:08:27 server named[25312]: command channel listening on 127.0.0.1#953
Mar 3 01:08:27 server named[25312]: none:104: 'max-cache-size 90%' - setting to 14259MB (out of 15843MB)
Mar 3 01:08:27 server named[25312]: set up managed keys zone for view external, file 'external.mkeys'
Mar 3 01:08:27 server named[25312]: none:104: 'max-cache-size 90%' - setting to 14259MB (out of 15843MB)

named restarted successfully.

Here : Home »Restart Services »DNS Server »Restarting DNS Server
After Restarting i receive 'max-cache-size 90%' wondering what is the issue here ?

 

[cPRex]

Thanks for the additional details. I just wanted to confirm the service was actually working as intended before going further than that.

This isn't necessarily an issue, as this is the default behavior for a BIND nameserver. Here is what I see on a CentOS 7 server when I restart named:

Log Messages
    Mar  3 07:31:58 10-2-33-26 named[27845]: command channel listening on 127.0.0.1#953
    Mar  3 07:31:58 10-2-33-26 named[27845]: none:104: 'max-cache-size 90%' - setting to 1798MB (out of 1998MB)
    Mar  3 07:31:58 10-2-33-26 named[27845]: set up managed keys zone for view external, file 'external.mkeys'
    Mar  3 07:31:58 10-2-33-26 named[27845]: none:104: 'max-cache-size 90%' - setting to 1798MB (out of 1998MB)

I did try adding the value to the named.conf file as outlined here:

Limiting the Memory a Name Server Uses | BIND Name Server Configuration

Limiting the Memory a Name Server Uses / BIND Name Server Configuration from DNS & BIND Cookbook

flylib.com

but that caused startup errors.

If you want to ensure the named system will use less RAM, you may want to think about switching over to PowerDNS, as that is the DNS server we include with all new installations of cPanel at this time.

 

[risecompany]

If this is the default behavior, So i don't have an issue with that ? I am safe right ?
I just want to prevent any potential issue from that message in the future.

 

[cPRex]

I haven't seen this cause any issues yet on cPanel systems. That is just letting you know what the current configuration is when you restart the service.

 

[risecompany]

Thanks for your support, I really appreciate that, another thing if you please i tried now to upgrade to PowerDNS, but i found that message :
" PowerDNS is not available for your system. Please choose another nameserver configuration. "
How can i enable it?

 

[cPRex]

Can you let me know the cPanel version, OS version, and what the contents of /etc/resolv.conf are on your machine?

 

[risecompany]

CENTOS 7.9 - v94.0.2
----------------
search mysite.com
domain mysite.com
nameserver 143.95.37.111
nameserver 143.95.224.222
nameserver 8.8.8.8

* for security i replaced mysite.com / 111/ 222

 

[cPRex]

Thanks for that - is one of those first two "nameserver" entries also a local IP address? If so, that would need to be removed in order to use PowerDNS as that software has to use external resolvers. You could try using the following entries in the /etc/resolv.conf file:

nameserver 8.8.8.8
nameserver 8.8.4.4

as those are both the Google public resolvers.

If it still doesn't let you switch after that, or if those IP addresses are not local, please let me know!

 

[risecompany]

Well Done, Great it's OK now and i Upgraded it to "PowerDNS " thanks of you,
regards.

 

[cPRex]

Great - I'm glad we could get that resolved together!