Public bug reported:
I believe dovecot-auth was running out of file descriptors because the
log message in mail.log:
Dec 1 18:47:40 cicada dovecot-auth: PAM unable to
dlopen(/lib/security/pam_env.so)
Dec 1 18:47:40 cicada dovecot-auth: PAM [error: /lib/security/pam_env.so:
cannot open shared object file: Too many open files]
Dec 1 18:47:40 cicada dovecot-auth: PAM adding faulty module:
/lib/security/pam_env.so
Dec 1 18:47:40 cicada dovecot-auth: PAM unable to
dlopen(/lib/security/pam_ldap.so)
Dec 1 18:47:40 cicada dovecot-auth: PAM [error: /lib/security/pam_ldap.so:
cannot open shared object file: Too many open files]
Dec 1 18:47:40 cicada dovecot-auth: PAM adding faulty module:
/lib/security/pam_ldap.so
Dec 1 18:47:40 cicada dovecot-auth: PAM unable to
dlopen(/lib/security/pam_unix.so)
Dec 1 18:47:40 cicada dovecot-auth: PAM [error: /lib/security/pam_unix.so:
cannot open shared object file: Too many open files]
Dec 1 18:47:40 cicada dovecot-auth: PAM adding faulty module:
/lib/security/pam_unix.so
** Affects: dovecot (Ubuntu)
Importance: Undecided
Status: New
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Dovecot-auth doesn't close sockets
https://bugs.launchpad.net/bugs/503008
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