proxy-cache

[Remco Post <r.post@sara.nl>]

Hi all,

so after having stepped on enough toes for one day, now a true openldap 
question.

I have compiled openldap-2.2.17 and configured it. The sql database is 
the same I've been using for some time now. So I don't expect any 
problems in that part. Now, I've tried to add a proxy-cache to help 
speed things up a bit (10 entries/sec is a bit to slow). I have the 
following rules in my slapd.conf:

--8<--
# the real thing
#
database sql
suffix          "o=sara,c=NL"
rootdn          "cn=root,o=sara,c=NL"
rootpw          zeergeheim123
dbname          PgSQL
dbuser          ldap
dbpasswd        ldap
upper_func      "upper"
strcast_func    "text"
concat_pattern  "?||?"
has_ldapinfo_dn_ru no
# subtree_cond
# oc_query
# at_query
# insentry_query
# delentry_query
#
# a proxy cache for our database
#
database        meta
rewriteEngine on
rewriteContext cacheResult
rewriteRule "(.*)dc=sara,dc=NL" "%1o=sara,c=NL" ":"
rewriteContext cacheBase
rewriteRule "(.*)dc=sara,dc=NL" "%1o=sara,c=NL" ":"
rewriteContext cacheReturn
rewriteRule "(.*)o=sara,c=NL" "%1dc=sara,dc=NL" ":"

suffix  "dc=sara,dc=NL"
uri     "ldap://dromedaris.sara.nl/o=sara,c=NL";


overlay proxycache
        proxycache ldbm 100000 1 1000 100
        proxyAttrset  0 uid uidNumber objectClass
        proxyTemplate (uid=?) 0 3600
        proxyTemplate (objectClass=?) 0 3600
        proxyTemplate (uidNumber=?) 0 3600
        directory /usr/local/etc/openldap/db
--8<--

statring the slapd using `./slapd -h 'ldap:/// ldaps:///' -d 1` to see 
what is going on yield a lot of lines printing '
backend_startup: starting "dc=sara,dc=NL"' ginving me the impression 
that something is looping.

I've tries setting the uri rule for my meta-db to 
"ldap://dromedaris.sara.nl/dc=sara,dc=NL"; as is done in the sample code, 
but that has the same result.

any hints on the use of the proxycache would be appreciated, nieter the 
IBM whitepaper nor the on-line documentation give me any hints on what 
is going wrong....

--
Met vriendelijke groeten,

Remco Post

SARA - Reken- en Netwerkdiensten                      http://www.sara.nl
High Performance Computing  Tel. +31 20 592 3000    Fax. +31 20 668 3167

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