On 11/15/21 3:55 PM, Mark Reynolds
wrote:
On 11/15/21 9:46 AM, Pierre Rogier wrote:
I feel a bit weird that we try to perform substring searches in the referential integrity plugin.
I would rather expect equality searches.
Does anyone know why the * are needed ?
IIUC it is to handle this testcase
dn: ou=group, dc=example,dc=com
member: uid=foo,ou=people,dc=example,dc=com
dn: ou=people,dc=example,dc=com
ou: people
dn: uid=foo,ou=people,dc=example,dc=com
uid: foo
MODRDN(ou=people,dc=example,dc=com -> ou=new_people,dc=com)
Then this code is to get
dn: ou=group,dc=example,dc=com
member: uid=foo,ou=new_people,dc=com
It is used for MODRDN's like Thierry stated. The code states that we use the substring filter to find the children memberships of the old DN so they can be properly cleaned up. I'm not sure this can be optimized to not use a substring filter....
Mark
On Mon, Nov 15, 2021 at 3:22 PM Thierry Bordaz <tbordaz@xxxxxxxxxx> wrote:
Hi,
The referential integrity plugins uses internal searches to retrieve
which entries referred to the target entry. The plugin uses equality
searches, that are indexed, but for MODRDN it uses substring filter. As
membership attributes (member, uniquemember,...) are not indexed in
substring, each MODRDN triggers 4 (4 membership attributes) unindexed
searches. referint being a betxn plugin, unindexed search are prone to
create db retries and could be related to replication failure.
I would recommand that you try adding substring index to the member,
uniquemember, owner and seealso.
regards
thierry
On 11/15/21 3:00 PM, Ciber dgtnt wrote:
> Hi, I have a problem in 389-ds version 1.3.10.2-10 intalled on Centos7 , we have a multimaster enviroment with consumers and suppliers, we have referential integrity plugin to control the group members. In the master node where we have the referential integrity pluggin enabled, ocasionally we get this message in the error log :
>
> NOTICE - ldbm_back_search - Internal unindexed search: source (cn=referential integrity postoperation,cn=plugins,cn=config) search base="c=es" scope=2 filter="(member=*uid=dmarmedr,ou=Baja de cuentas,c=es)" conn=0 op=0
> NOTICE - ldbm_back_search - Internal unindexed search: source (cn=referential integrity postoperation,cn=plugins,cn=config) search base="c=es" scope=2 filter="(uniquemember=*uid=dmarmedr,ou=Baja de cuentas,c=es)" conn=0 op=0
> NOTICE - ldbm_back_search - Internal unindexed search: source (cn=referential integrity postoperation,cn=plugins,cn=config) search base="c=es" scope=2 filter="(owner=*uid=dmarmedr,ou=Baja de cuentas,c=es)" conn=0 op=0
> NOTICE - ldbm_back_search - Internal unindexed search: source (cn=referential integrity postoperation,cn=plugins,cn=config) search base="c=es" scope=2 filter="(seeAlso=*uid=dmarmedr,ou=Baja de cuentas,c=es)" conn=0 op=0
>
> And when it happends the slapd proccess takes up to 100% CPU usage and we see the message you can see bellow, because this master node begins to avoid replication sessions from other master nodes:
>
> ERR - NSMMReplicationPlugin - process_postop - Failed to apply update (615f51ea000000230000) error (51). Aborting replication session(conn=1145 op=4)
>
> All those internal unindexed searchs have filters with the attributes configured in the referential integrity plugin, member=*, uniquemember=*, owner=* and seealso=*. Those attributes has equality and presence indexes, we don't understand why the log says "internal unindexed search".
>
> Can anyone help me with this problem?, maby is it necessary other type of index?
>
> Thanks & Regards
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