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Re: why syncrepl doesn't work ???

Sam Tran escreveu:
On 6/12/07, Jeronimo Zucco <jczucco@ucs.br> wrote: 
    Hi, list.

    I'm trying to implement syncrepl in my openldap 2.3.35 without
sucess. I tryed many (I sed: MANY) times to slacat, slapadd to slave for
syn ldap servers, but for some reason with I don't know, the slave lost
the sync.

    Then I have to do the same thing ate night:

- stop ldap master;
- slapcat master
- slapadd on the slave;
- start master and start slave


Hi Jeronimo,

With syncrepl, you don't need to do a 'slapcat' on the master and
'slapadd' on the slave. Just start the master, then the slave. You
will see the slave doing a full sync.

Ok, I didn't know about it until now. :-)



    This works about one hour, in the morning wasn't syncing again. If i
restart the slave ldap, then the changes on the master is replicated,
but stops to sync "on line" after this.

What do you see in your ldap logs?
Well, I restarted master and slave this morning, and sync works until 11:38 am. I change the log level to 16384 in both servers, and get this:


MASTER:

Jun 12 11:35:05 master slapd[3556]: connection_read(51): no connection!
Jun 12 11:36:08 master slapd[3556]: connection_read(72): no connection!
Jun 12 11:36:53 master slapd[3556]: connection_read(127): no connection!
Jun 12 11:37:15 master slapd[3556]: connection_read(139): no connection!
Jun 12 11:37:16 master slapd[3556]: connection_read(139): no connection!
Jun 12 11:37:29 master slapd[3556]: connection_read(144): no connection!
Jun 12 11:37:36 master slapd[3556]: connection_read(144): no connection!
Jun 12 11:39:18 master slapd[3556]: connection_read(69): no connection!
Jun 12 11:39:37 master last message repeated 2 times
...  until now


SLAVE:

Jun 12 11:35:51 slave slapd[32765]: syncrepl_entry: rid 001 LDAP_RES_SEARCH_ENTRY(LDAP_SYNC_MODIFY)
Jun 12 11:35:51 slave slapd[32765]: syncrepl_entry: rid 001 be_search (0)
Jun 12 11:35:51 slave slapd[32765]: syncrepl_entry: rid 001 ou=ImpPrefs,uid=RMendes,ou=people,dc=domain,dc=com
Jun 12 11:35:51 slave slapd[32765]: syncrepl_entry: rid 001 be_modify (0)
Jun 12 11:38:40 slave slapd[32765]: connection_read(27): no connection!
Jun 12 11:43:40 slave slapd[32765]: connection_read(27): no connection!
Jun 12 12:13:40 slave slapd[32765]: connection_read(27): no connection!
Jun 12 13:08:40 slave slapd[32765]: connection_read(27): no connection!
... until now...


Then now I restarted the slave openldap server, and sync is working again (I don't now until when, then I have to restart slave again to do sync.

Are your master and slave in two different subnets separated by a firewall? 
No. The servers are in the same network.

Thanks for the help.


Sam


I don't know what to do to solve this issue :-(

    Follow up my ldap configuration (just about syncrepl):

ldap master:
# acls permits to user replicator to read all the database
index   objectClass,entryCSN,entryUUID  eq
overlay         syncprov
syncprov-checkpoint 100 10
syncprov-sessionlog 100
limits dn.exact="cn=replicator,dc=domain,dc=com" size.soft=unlimited
size.hard=unlimited



ldap slave:
syncrepl
    rid=1
    provider=ldaps://master.domain.com:636
    binddn="cn=replicator,dc=domain,dc=com"
    bindmethod=simple
    credentials=secret
    searchbase="dc=domain,dc=com"
    filter="(objectClass=*)"
    schemachecking=off
    scope=sub
    type=refreshAndPersist
    retry="60 +"



Any tip will be apreciated.

--
Jeronimo Zucco
LPIC-1 Linux Professional Institute Certified
Núcleo de Processamento de Dados
Universidade de Caxias do Sul

http://jczucco.blogspot.com




--
Jeronimo Zucco
LPIC-1 Linux Professional Institute Certified
Núcleo de Processamento de Dados
Universidade de Caxias do Sul

http://jczucco.blogspot.com