Re: syncrepl with refreshAndPersist works in 2.2.x, but not in 2.3.x

[Pierangelo Masarati <ando@sys-net.it>]

Andreas Taschner wrote:
> Hi
>
> Slave servers that are replicating changes using the refreshAndPersist operation type do not get updates from the
> master server until they are restarted. They will not be notified of any other changes. 
> If I set the replication protocol operation type to refreshOnly and a suitable interval, the changes do get replicated
> as expected.
>
> I have verified that syncrepl with type=refreshAndPersist works with openldap2-2.2.24 and 2.2.27) also works as it
> should. 
> However neither the 2.3.19-x (which is the current version on my platform - SLES 10, kernel 2.6.16) nor 2.3.30 work as
> expected.
>
> I have traversed the net and tried numerous configuration variations, but not found anything that changes the behavior.
> I always end up having to restart the slave to get the updates over. Needless to say that I have tried on different
> hardware (all x86-based) and all on complete fresh installations of the base OS.
>
> When loading the consumer/replica/slave, the apparently connects to the provider (Config: ** successfully added
> syncrepl "ldap://host1.nts.com:389";).
>
> There seems to be many people who have this working, but I have not yet been able to find a configuration example that
> works.
>
> Snip of consumer config (full config files attached) :
> ###############################
> database bdb
> suffix dc=example,dc=com
> directory /var/opt/ldap/master
> rootdn "cn=admin,dc=example,dc=com"
> rootpw secret
> index entryUUID,entryCSN,objectClass eq,pres
> index cn,displayname,uid,sn,givenname,telephoneNumber sub,eq,pres
> cachesize 250000
> checkpoint 50 5
> idlcachesize 750000
> mode 0600
> dbconfig set_cachesize 0 268435456 1
> dbconfig set_lg_regionmax 262144
> dbconfig set_lg_bsize 2097152
> access to *
>   by self write
>   by dn.base="cn=admin,dc=example,dc=com" write
>   by anonymous auth
>   by * read
> syncrepl rid=101
>   provider=ldap://host1.nts.com
>   type=refreshAndPersist
>   retry="10 10 60 +"
>   searchbase="dc=example,dc=com"
>   filter="(objectClass=*)"
>   scope=sub
>   schemachecking=off
>   sizelimit=500000
>   timelimit=360000
>   bindmethod=simple
>   binddn="cn=admin,dc=example,dc=com"
>   credentials=secret
> updateref ldap://host1.nts.com
> ###############################
>
>
> Snip of provider :
> ###############################
> overlay syncprov
> syncprov-checkpoint: 100 10
> syncprov-sessionlog: 3000
>
> database bdb
> suffix dc=example,dc=com
> directory /var/opt/ldap/master
> rootdn "cn=admin,dc=example,dc=com"
> rootpw secret
> index entryUUID,entryCSN,objectClass eq,pres
> index cn,displayname,uid,sn,givenname,telephoneNumber sub,eq,pres
> cachesize 250000
> checkpoint 50 5
> idlcachesize 750000
> mode 0600
> dbconfig set_cachesize 0 268435456 1
> dbconfig set_lg_regionmax 262144
> dbconfig set_lg_bsize 2097152
> access to *
>   by self write
>   by dn.base="cn=admin,dc=example,dc=com" write
>   by anonymous auth
>   by * read
> ###############################
>
> Am I missing something or is refreshAndPersist broken ?
>
> Any hints would be most appreciated.

Try moving the "overlay syncprov" inside the database specification (as 
clearly indicated in the documentation).

p.



Ing. Pierangelo Masarati
OpenLDAP Core Team

SysNet s.n.c.
Via Dossi, 8 - 27100 Pavia - ITALIA
http://www.sys-net.it
------------------------------------------
Office:   +39.02.23998309
Mobile:   +39.333.4963172
Email:    pierangelo.masarati@sys-net.it
------------------------------------------