ModSecurity: collection_store: Failed to access DBM file

Rajiv Atre

• April 22, 2026 07:45

Hi,

We checked the posts which are related to Failed to access DBM File but our issue is slightly different.
We are getting the following errors continuously  
[Wed Apr 22 12:32:59.174656 2026] [security2:error] [pid 2515532:tid 2515564] [client 151.246.139.16:41672] ModSecurity: collection_store: Failed to access DBM file "/var/cpanel/secdatadir/nobody-ip": Resource deadlock avoided [hostname "ourdomain.com"] [uri "/b2b/webstore/index.php"] [unique_id "aehyorQBUQpHV_hNYfTZ-QAAAI8"]

Is this acceptable ? our modsecurity is running fine but these errors are appearing in var/log/apache2/error_log for every minute or so.
We already tried this few times 
service httpd stop
rm -f /var/cpanel/secdatadir/nobody-ip*
service httpd start

Please let me know what could be the solution ?

Thanks

Rajiv 

• 

  cPRex Jurassic Moderator

  • April 22, 2026 14:36

  Hey there!  You're right that this is the different from the larger issues you've found.  Usually when I see this it's because a specific user is reaching a resource limit.

  Is it possible you are seeing this on a CloudLinux server and a user is reaching their configured resource limit in the LVE system?

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