To follow up with results of testing non-file locking: yep, the end user we were working with initially had this in their config, as Rafael said:
Mutex file:${APACHE_LOCK_DIR} default and we asked them to update it to not use file for ldap, by changing to: Mutex file:${APACHE_LOCK_DIR} default Mutex sem ldap-cache After that change (done about 1 month ago) they restarted and have not seen the problem happen again. I don't have any answer to why exactly they set the default to file locking. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1767105 Title: race condition on rmm for module ldap (ldap cache) - part II To manage notifications about this bug go to: https://bugs.launchpad.net/apache2/+bug/1767105/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs