Segmentation fault on doveadm search -A with a huge user base
Hi,
I'm using dovecot 2.2.9 with a director/backend setup. The user base is about 4711 users currently.
If I start at one of the directors
doveadm search -A all savedbefore 5000dit terminates with
doveadm(1rrissma): Error: doveadm server disconnected before handshake: EOF doveadm(1rrissma): Error: 2001:638:913:f33::5:ff:24245: Command search failed for 1phaaman: EOF doveadm(1rrissma): Error: doveadm server failure doveadm: Error: Failed to iterate through some users
The backend logs about that
... Feb 12 23:09:41 backend1 dovecot: doveadm(2001:638:913:f33::5:1,1mstrei2): Error: doveadm search: Client sent unknown parameter: ? Feb 12 23:09:41 backend1 dovecot: doveadm: Error: search: invalid option -- '5' Feb 12 23:09:41 backend1 dovecot: doveadm(2001:638:913:f33::5:1,1mstrei2): Error: doveadm search: Client sent unknown parameter: ? Feb 12 23:09:41 backend1 dovecot: doveadm: Error: search: invalid option -- '5' Feb 12 23:09:41 backend1 dovecot: doveadm(2001:638:913:f33::5:1,1mstrei2): Error: doveadm search: Client sent unknown parameter: ? Feb 12 23:09:41 backend1 dovecot: doveadm: Error: search: invalid option -- '0' Feb 12 23:09:41 backend1 dovecot: doveadm(2001:638:913:f33::5:1,1mstrei2): Error: doveadm search: Client sent unknown parameter: ? Feb 12 23:09:41 backend1 dovecot: doveadm: Error: search: invalid option -- '0' Feb 12 23:09:41 backend1 dovecot: doveadm(2001:638:913:f33::5:1,1mstrei2): Error: doveadm search: Client sent unknown parameter: ? Feb 12 23:09:41 backend1 dovecot: doveadm: Error: search: invalid option -- '0' Feb 12 23:09:41 backend1 dovecot: doveadm(2001:638:913:f33::5:1,1mstrei2): Error: doveadm search: Client sent unknown parameter: ? Feb 12 23:09:41 backend1 dovecot: doveadm: Error: search: invalid option -- 'd' Feb 12 23:09:41 backend1 dovecot: doveadm(2001:638:913:f33::5:1,1mstrei2): Error: doveadm search: Client sent unknown parameter: ? Feb 12 23:09:41 backend1 dovecot: doveadm(2001:638:913:f33::5:1,1mstrei2): Fatal: master: service(doveadm): child 11235 killed with signal 11 (core dumped)
Is this a known behaviour and fixed already, or do I need to do more investigation?
(PS: Running the same command on one of the backends works w/o failure)
Best regards from Dresden/Germany
Viele Grüße aus Dresden
Heiko Schlittermann-- SCHLITTERMANN.de ---------------------------- internet & unix support - Heiko Schlittermann, Dipl.-Ing. (TU) - {fon,fax}: +49.351.802998{1,3} - gnupg encrypted messages are welcome --------------- key ID: F69376CE - ! key id 7CBF764A and 972EAC9F are revoked since 2015-01 ------------ -
On Sat, Feb 13, 2016 at 1:36 AM, Heiko Schlittermann hs@schlittermann.de wrote:
Hi,
I'm using dovecot 2.2.9 with a director/backend setup. The user base is about 4711 users currently.
If I start at one of the directors
doveadm search -A all savedbefore 5000dit terminates with
doveadm(1rrissma): Error: doveadm server disconnected before handshake: EOF doveadm(1rrissma): Error: 2001:638:913:f33::5:ff:24245: Command search failed for 1phaaman: EOF doveadm(1rrissma): Error: doveadm server failure doveadm: Error: Failed to iterate through some users
The backend logs about that
... Feb 12 23:09:41 backend1 dovecot: doveadm(2001:638:913:f33::5:1,1mstrei2): Error: doveadm search: Client sent unknown parameter: ? Feb 12 23:09:41 backend1 dovecot: doveadm: Error: search: invalid option -- '5' Feb 12 23:09:41 backend1 dovecot: doveadm(2001:638:913:f33::5:1,1mstrei2): Error: doveadm search: Client sent unknown parameter: ? Feb 12 23:09:41 backend1 dovecot: doveadm: Error: search: invalid option -- '5' Feb 12 23:09:41 backend1 dovecot: doveadm(2001:638:913:f33::5:1,1mstrei2): Error: doveadm search: Client sent unknown parameter: ? Feb 12 23:09:41 backend1 dovecot: doveadm: Error: search: invalid option -- '0' Feb 12 23:09:41 backend1 dovecot: doveadm(2001:638:913:f33::5:1,1mstrei2): Error: doveadm search: Client sent unknown parameter: ? Feb 12 23:09:41 backend1 dovecot: doveadm: Error: search: invalid option -- '0' Feb 12 23:09:41 backend1 dovecot: doveadm(2001:638:913:f33::5:1,1mstrei2): Error: doveadm search: Client sent unknown parameter: ? Feb 12 23:09:41 backend1 dovecot: doveadm: Error: search: invalid option -- '0' Feb 12 23:09:41 backend1 dovecot: doveadm(2001:638:913:f33::5:1,1mstrei2): Error: doveadm search: Client sent unknown parameter: ? Feb 12 23:09:41 backend1 dovecot: doveadm: Error: search: invalid option -- 'd' Feb 12 23:09:41 backend1 dovecot: doveadm(2001:638:913:f33::5:1,1mstrei2): Error: doveadm search: Client sent unknown parameter: ? Feb 12 23:09:41 backend1 dovecot: doveadm(2001:638:913:f33::5:1,1mstrei2): Fatal: master: service(doveadm): child 11235 killed with signal 11 (core dumped)
Is this a known behaviour and fixed already, or do I need to do more investigation?
(PS: Running the same command on one of the backends works w/o failure)
For dovecot with LDAP we make this
After fix dovecot-ldap.conf
user_filter = (&(objectClass=posixAccount)(uid=%u)(BackendHost=backend1.wibble.net)) pass_attrs = uid=user,userPassword=password pass_filter = (&(objectClass=posixAccount)(uid=%u)) # For using doveadm -A: iterate_attrs = uid=user iterate_filter = (&(objectClass=posixAccount)(BackendHost=backend1.wibble.net))
Work perfect
doveadm: Error: Failed to iterate through some users
Need more search limit in LDAP http://dovecot.org/list/dovecot/2016-February/103118.html
Andrey Fesenko f0andrey@gmail.com (Sa 13 Feb 2016 00:01:01 CET): …
Thank you for your fast response…
doveadm user \*works on the director, gives us 4711 users. The LDAP limits are 'unlimited'.
For dovecot with LDAP we make this After fix dovecot-ldap.conf
user_filter = (&(objectClass=posixAccount)(uid=%u)(BackendHost=backend1.wibble.net)) pass_attrs = uid=user,userPassword=password pass_filter = (&(objectClass=posixAccount)(uid=%u)) # For using doveadm -A: iterate_attrs = uid=user iterate_filter = (&(objectClass=posixAccount)(BackendHost=backend1.wibble.net))
Work perfect
doveadm: Error: Failed to iterate through some users
Yes, but I *can* iterate through the users…
# ldapsearch -x -w $(<private/ldap.pw) objectClass=hqmMailRecipient -LLL | grep -c ^dn
# doveadm user \* | wc -lis 4711 in both cases.
And .. eigher way, segmentation fault… isn't what I'd expect here.
-- Heiko
participants (2)
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Andrey Fesenko
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Heiko Schlittermann