Help :: high memory usage with FR 3.0.11 on RHEL66

[Mariano Fons]

Hi everyone,
we're running FreeRadius 3.0.11 on RHEL6.6

We have all of this modules enabled:
[PRO] [root at pv3il0510 mods-enabled]# ls -l
total 0
lrwxrwxrwx 1 root radiusd 24 feb 22  2016 always -> ../mods-available/always
lrwxrwxrwx 1 root radiusd 29 feb 22  2016 attr_filter ->
../mods-available/attr_filter
lrwxrwxrwx 1 root radiusd 27 feb 22  2016 cache_eap ->
../mods-available/cache_eap
lrwxrwxrwx 1 root radiusd 22 feb 22  2016 chap -> ../mods-available/chap
lrwxrwxrwx 1 root radiusd 24 feb 22  2016 detail -> ../mods-available/detail
lrwxrwxrwx 1 root radiusd 28 feb 22  2016 detail.log ->
../mods-available/detail.log
lrwxrwxrwx 1 root radiusd 22 feb 22  2016 dhcp -> ../mods-available/dhcp
lrwxrwxrwx 1 root radiusd 24 feb 22  2016 digest -> ../mods-available/digest
lrwxrwxrwx 1 root radiusd 33 feb 22  2016 dynamic_clients ->
../mods-available/dynamic_clients
lrwxrwxrwx 1 root radiusd 21 feb 22  2016 eap -> ../mods-available/eap
lrwxrwxrwx 1 root radiusd 22 feb 22  2016 echo -> ../mods-available/echo
lrwxrwxrwx 1 root radiusd 22 feb 22  2016 exec -> ../mods-available/exec
lrwxrwxrwx 1 root radiusd 28 feb 22  2016 expiration ->
../mods-available/expiration
lrwxrwxrwx 1 root radiusd 22 feb 22  2016 expr -> ../mods-available/expr
lrwxrwxrwx 1 root radiusd 23 feb 22  2016 files -> ../mods-available/files
lrwxrwxrwx 1 root root    30 feb 22  2016 ldap ->
/etc/raddb/mods-available/ldap
lrwxrwxrwx 1 root radiusd 25 feb 22  2016 linelog ->
../mods-available/linelog
lrwxrwxrwx 1 root radiusd 27 feb 22  2016 logintime ->
../mods-available/logintime
lrwxrwxrwx 1 root radiusd 24 feb 22  2016 mschap -> ../mods-available/mschap
lrwxrwxrwx 1 root radiusd 27 feb 22  2016 ntlm_auth ->
../mods-available/ntlm_auth
lrwxrwxrwx 1 root radiusd 21 feb 22  2016 pap -> ../mods-available/pap
lrwxrwxrwx 1 root radiusd 24 feb 22  2016 passwd -> ../mods-available/passwd
lrwxrwxrwx 1 root radiusd 28 feb 22  2016 preprocess ->
../mods-available/preprocess
lrwxrwxrwx 1 root radiusd 25 feb 22  2016 radutmp ->
../mods-available/radutmp
lrwxrwxrwx 1 root radiusd 23 feb 22  2016 realm -> ../mods-available/realm
lrwxrwxrwx 1 root radiusd 27 feb 22  2016 replicate ->
../mods-available/replicate
lrwxrwxrwx 1 root radiusd 21 feb 22  2016 soh -> ../mods-available/soh
lrwxrwxrwx 1 root radiusd 26 feb 22  2016 sradutmp ->
../mods-available/sradutmp
lrwxrwxrwx 1 root radiusd 22 feb 22  2016 unix -> ../mods-available/unix
lrwxrwxrwx 1 root radiusd 24 feb 22  2016 unpack -> ../mods-available/unpack
lrwxrwxrwx 1 root radiusd 22 feb 22  2016 utf8 -> ../mods-available/utf8
[PRO] [root at pv3il0510 mods-enabled]#

We validate with: EAP-TLS, PAP and PEAP.

We have 2 hosts running the same configuration behind one F5 balancer.
Requests go down to any host and the request is attended. This works OK.
We are nearly processing 150k requests (accepted & rejected) on each node.

But the issue we are showing is high memory usage. Hosts have 4GB RAM and
1vCPU (runs in VMware hosts)

The machines are nearly idle all the time, but ram usage increase over the
time....sometimes nearly 90% ...

The question is, have anyone got in this issue with this version?
Is there any known issue in this version for this problem?
I have been searching through the changelog of the versions 'til 3.0.15 but
I can't see anything clear about this.

Thanx in advance!

Kind regards,
Mariano.