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Raphael Bittencourt S. Costa

2008-Jan-22 16:20 UTC

[Dovecot] 1.1beta14 cache bug ?

Helo all,

After enable auth_cache_size = 20480 and auth_cache_ttl = 0, dovecot
stops working for users that are in cache. See the log bellow: 


1 - POP3 session OK
jan 22 14:02:59 mailserver--03 dovecot: auth(default): client in: AUTH
1       PLAIN   service=pop3    lip=10.0.149.3  rip=10.0.2.2
resp=<hidden>
Jan 22 14:02:59 mailserver--03 dovecot: auth(default):
cache(teste2 at xxxx.com.br,10.0.2.2): miss
Jan 22 14:02:59 mailserver--03 dovecot: auth(default):
ldap(teste2 at xxxx.com.br,10.0.2.2): bind search:
base=ou=xxxx.com.br,ou=accounts,o=comMail
filter=(&(objectClass=qmailUser)(mail=teste2 at
xxxx.com.br)(!(accountStatus=disabled)))
Jan 22 14:02:59 mailserver--03 dovecot: auth(default):
ldap(teste2 at xxxx.com.br,10.0.2.2): result:
mailMessageStore(userdb_home)=/data/services/dominios/xxxx.com.br/t/te/teste2/
mailHostAddress(host)=10.0.149.3
mailQuotaSize(userdb_quota_rule=*:bytes)=2048576000 uid(user)=teste2 at
xxxx.com.br qmailGID(userdb_gid)=1033 qmailUID(proxy_maybe)=1033
Jan 22 14:02:59 mailserver--03 dovecot: auth(default): client out: OK
1       user=teste2 at xxxx.com.br
Jan 22 14:02:59 mailserver--03 dovecot: auth(default): master in:
REQUEST  1       3085    1
Jan 22 14:02:59 mailserver--03 dovecot: auth(default):
prefetch(teste2 at xxxx.com.br,10.0.2.2): success
Jan 22 14:02:59 mailserver--03 dovecot: auth(default): master out: USER
1       teste2 at xxxx.com.br
home=/data/services/dominios/xxxx.com.br/t/te/teste2/
quota_rule=*:bytes=2048576000   gid=1033
Jan 22 14:02:59 mailserver--03 dovecot: pop3-login: Login:
user=<teste2 at xxxx.com.br>, method=PLAIN, rip=10.0.2.2, lip=10.0.149.3
Jan 22 14:02:59 mailserver--03 dovecot: auth(default): new auth
connection: pid=3085
Jan 22 14:02:59 mailserver--03 dovecot: POP3(teste2 at xxxx.com.br):
Loading modules from directory: /usr/local/lib/dovecot/pop3
Jan 22 14:02:59 mailserver--03 dovecot: POP3(teste2 at xxxx.com.br): Module
loaded: /usr/local/lib/dovecot/pop3/lib10_quota_plugin.so
Jan 22 14:02:59 mailserver--03 dovecot: POP3(teste2 at xxxx.com.br):
Effective uid=1033, gid=1033
Jan 22 14:02:59 mailserver--03 dovecot: POP3(teste2 at xxxx.com.br): Quota
root: name= backend=maildir argsJan 22 14:02:59 mailserver--03 dovecot:
POP3(teste2 at xxxx.com.br): Quota
rule: root= mailbox= bytes=2048576000 messages=0
Jan 22 14:02:59 mailserver--03 dovecot: POP3(teste2 at xxxx.com.br):
Namespace: type=private, prefix=INBOX., sep=, inbox=yes, hidden=no,
list=yes, subscriptions=yes
Jan 22 14:02:59 mailserver--03 dovecot: POP3(teste2 at xxxx.com.br):
maildir: data=/data/services/dominios/xxxx.com.br/t/te/teste2//Maildir
Jan 22 14:02:59 mailserver--03 dovecot: POP3(teste2 at xxxx.com.br):
maildir++:
root=/data/services/dominios/xxxx.com.br/t/te/teste2//Maildir, index=,
control=, inbox=/data/services/dominios/xxxx.com.br/t/te/teste2//Maildir
Jan 22 14:03:02 mailserver--03 dovecot: POP3(teste2 at xxxx.com.br):
Disconnected: Logged out top=0/0, retr=0/0, del=0/3012, size=534868620

2 - POP3 session fail
Jan 22 14:03:08 mailserver--03 dovecot: auth(default): client in: AUTH
1       PLAIN   service=pop3    lip=10.0.149.3  rip=10.0.2.2
resp=<hidden>
Jan 22 14:03:08 mailserver--03 dovecot: auth(default):
cache(teste2 at xxxx.com.br,10.0.2.2): hit
Jan 22 14:03:08 mailserver--03 dovecot: auth(default): client out: OK
1       user=teste2 at xxxx.com.br host=10.0.149.3 proxy   pass=<hidden>
Jan 22 14:03:08 mailserver--03 dovecot: pop3-login: Login:
user=<teste2 at xxxx.com.br>, method=PLAIN, rip=10.0.2.2, lip=10.0.149.3
Jan 22 14:03:08 mailserver--03 dovecot: auth(default): new auth
connection: pid=3078

server01:~# telnet 10.0.145.3 110
Trying 10.0.145.3...
Connected to 10.0.145.3.
Escape character is '^]'.
+OK Dovecot ready.
user teste2 at xxxx.com.br
+OK
pass 123mudar
+OK Logged in.
Connection closed by foreign host.

Is it a bug on cache?

[]s,


Raphael Costa

Timo Sirainen

2008-Jan-31 15:15 UTC

head link

[Dovecot] 1.1beta14 cache bug ?

On Tue, 2008-01-22 at 14:20 -0200, Raphael Bittencourt S. Costa
wrote:> After enable auth_cache_size = 20480 and auth_cache_ttl = 0, dovecot
> stops working for users that are in cache. See the log bellow: 
Show your dovecot-ldap.conf? It seems cache key contains wrong
information.

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Raphael Bittencourt S. Costa

2008-Jan-31 15:42 UTC

head link

[Dovecot] 1.1beta14 cache bug ?

Timo,

Here is dovecot-ldap.conf:

uris = ldap://10.0.x.x:389/

dn = cn=xxxx, o=xxx
dnpass = xxxx
sasl_bind = no
auth_bind = yes
ldap_version = 2
base = ou=%d,ou=accounts,o=xxxx
deref = never
scope = onelevel


pass_attrs
uid=user,userPassword=password,mailMessageStore=userdb_home,qmailUID=userdb_uid,qmailGID=userdb_gid,mailQuotaSize=userdb_quota_rule=*:bytes,qmailUID=proxy_maybe,mailHostAddress=host
pass_filter = (&(objectClass=qmailUser)(mail=%
u)(!(accountStatus=disabled)))

user_attrs
mailMessageStore=home,qmailUID=uid,qmailGID=gid,mailQuotaSize=quota_rule=*:bytes
user_filter = (&(objectClass=qmailUser)(mail=%
u)(!(accountStatus=disabled)))


On Thu, 2008-01-31 at 17:15 +0200, Timo Sirainen wrote:
> On Tue, 2008-01-22 at 14:20 -0200, Raphael Bittencourt S. Costa wrote:
> > After enable auth_cache_size = 20480 and auth_cache_ttl = 0, dovecot
> > stops working for users that are in cache. See the log bellow: 
> 
> Show your dovecot-ldap.conf? It seems cache key contains wrong
> information.
> 

[]s,

Raphael Costa

Timo Sirainen

2008-Feb-21 13:59 UTC

head link

[Dovecot] 1.1beta14 cache bug ?

On Tue, 2008-01-22 at 14:20 -0200, Raphael Bittencourt S. Costa
wrote:> After enable auth_cache_size = 20480 and auth_cache_ttl = 0, dovecot
> stops working for users that are in cache. See the log bellow: 
This fixes some issues with proxy_maybe:
http://hg.dovecot.org/dovecot-1.1/rev/27b7b6c34961

Does it help to this problem? I also added code to make cache hit lines
show what they had cached:

http://hg.dovecot.org/dovecot-1.1/rev/6127a0501e72
http://hg.dovecot.org/dovecot-1.1/rev/e0debdcd2e10

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Raphael Bittencourt S. Costa

2008-Feb-22 13:10 UTC

head link

[Dovecot] 1.1beta14 cache bug ?

It worked on 1.1rc1.

Thanks Timo,

Raphael Costa

On Thu, 2008-02-21 at 15:59 +0200, Timo Sirainen wrote:
> On Tue, 2008-01-22 at 14:20 -0200, Raphael Bittencourt S. Costa wrote:
> > After enable auth_cache_size = 20480 and auth_cache_ttl = 0, dovecot
> > stops working for users that are in cache. See the log bellow: 
> 
> This fixes some issues with proxy_maybe:
> http://hg.dovecot.org/dovecot-1.1/rev/27b7b6c34961
> 
> Does it help to this problem? I also added code to make cache hit lines
> show what they had cached:
> 
> http://hg.dovecot.org/dovecot-1.1/rev/6127a0501e72
> http://hg.dovecot.org/dovecot-1.1/rev/e0debdcd2e10
>

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