Re: (ITS#7608) cn=config with modifiersdn outside cn=config breaks recovery using slapadd
Christian Kratzer wrote:
Hi Howard,
Never mind, this was actually a bug in the handling of proxied attributes. Fixed now in master, your test case should work fine there.
On Mon, 27 May 2013, hyc@symas.com wrote:
ck@cksoft.de wrote:
Hi,
Summary: it seems having a modifiersdn outside of cn=config in cn=config breaks replication once slapd is restarted.
Yeah, using DNs other than the cn=config rootDN is frequently a problem. This is why when cn=config was introduced in 2.3 only the cn=config rootDN was allowed access to the tree.
In this particular case, there's a simpler solution - add schema definitions for the missing RDN attributes directly to the cn=config entry. In your case, move the "ou" definition from the cn=core schema entry.
There's nothing dirty about this solution - it has always been valid to define schema elements in the top-level slapd.conf file as well as in the top cn=config global config entry. The feature doesn't get used much because most 3rd party schemas are distributed as their own files, so it's simpler to just use the include directive to reference them. But for your current situation, you need to define these schema elements as early as possible, so that they can be processed as valid later on.
Thanks for the feedback.
As my sample had modifiersName: cn=Alice,ou=People,dc=test I added definitions for 'ou' and 'dc' to cn=config.
It seems this helps for modifiersNames of entries below cn=config but not for cn=config itself.
I have uploaded following three configs that illustrate the remaining problem:
http://www.cksoft.de/paste/374f18f905d53f8e6e158702e686b563/config-1-fail.ldif http://www.cksoft.de/paste/374f18f905d53f8e6e158702e686b563/config-2-ok.ldif http://www.cksoft.de/paste/374f18f905d53f8e6e158702e686b563/config-3-fail.ldifThe original failure with config-1 because of a modifiersName on cn=module{0},cn=config:
[root@test-centos64 test]# slapadd -v -n0 -F config-1 -l config-1-fail.ldif added: "cn=config" (00000001) 51a32d4b str2entry: invalid value for attributeType modifiersName #0 (syntax 1.3.6.1.4.1.1466.115.121.1.12) slapadd: could not parse entry (line=42) _# 7.41% eta none elapsed none spd 1.5 M/s Closing DB... [root@test-centos64 test]#Workaround applied in config-2 with attribute definitions in cn=config
[root@test-centos64 test]# diff -u config-1-fail.ldif config-2-ok.ldif --- config-1-fail.ldif 2013-05-27 11:50:35.368253951 +0200 +++ config-2-ok.ldif 2013-05-27 11:49:17.691253291 +0200 @@ -28,6 +28,12 @@ olcTLSVerifyClient: never olcToolThreads: 1 olcWriteTimeout: 0 +olcAttributeTypes: ( 2.5.4.11 NAME ( 'ou' 'organizationalUnitName' ) DESC ' + RFC2256: organizational unit this object belongs to' SUP name ) +olcAttributeTypes: ( 0.9.2342.19200300.100.1.25 NAME ( 'dc' 'domainCompone + nt' ) DESC 'RFC1274/2247: domain component' EQUALITY caseIgnoreIA5Match SUBST + R caseIgnoreIA5SubstringsMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.26 SINGLE-VA + LUE ) structuralObjectClass: olcGlobal entryUUID: 3b1e9034-58d9-1032-8161-d3a3b8e342e7 creatorsName: cn=config @@ -86,8 +92,6 @@ ubstringsMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.15{128} ) olcAttributeTypes: {7}( 2.5.4.10 NAME ( 'o' 'organizationName' ) DESC 'RFC2256 : organization this object belongs to' SUP name ) -olcAttributeTypes: {8}( 2.5.4.11 NAME ( 'ou' 'organizationalUnitName' ) DESC ' - RFC2256: organizational unit this object belongs to' SUP name ) olcAttributeTypes: {9}( 2.5.4.12 NAME 'title' DESC 'RFC2256: title associated with the entity' SUP name ) olcAttributeTypes: {10}( 2.5.4.14 NAME 'searchGuide' DESC 'RFC2256: search gui @@ -193,10 +197,6 @@ olcAttributeTypes: {48}( 0.9.2342.19200300.100.1.3 NAME ( 'mail' 'rfc822Mailbo x' ) DESC 'RFC1274: RFC822 Mailbox' EQUALITY caseIgnoreIA5Match SUBSTR ca seIgnoreIA5SubstringsMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.26{256} ) -olcAttributeTypes: {49}( 0.9.2342.19200300.100.1.25 NAME ( 'dc' 'domainCompone - nt' ) DESC 'RFC1274/2247: domain component' EQUALITY caseIgnoreIA5Match SUBST - R caseIgnoreIA5SubstringsMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.26 SINGLE-VA - LUE ) olcAttributeTypes: {50}( 0.9.2342.19200300.100.1.37 NAME 'associatedDomain' DE SC 'RFC1274: domain associated with object' EQUALITY caseIgnoreIA5Match SUBST R caseIgnoreIA5SubstringsMatch SYNTAX 1.3.6.1.4.1.1466.115.121.1.26 ) [root@test-centos64 test]# [root@test-centos64 test]# slapadd -v -n0 -F config-2 -l config-2-ok.ldif added: "cn=config" (00000001) added: "cn=module{0},cn=config" (00000001) added: "cn=schema,cn=config" (00000001) added: "cn={0}core,cn=schema,cn=config" (00000001) added: "olcDatabase={-1}frontend,cn=config" (00000001) added: "olcDatabase={0}config,cn=config" (00000001) added: "olcDatabase={1}mdb,cn=config" (00000001) _#################### 100.00% eta none elapsed none fast! Closing DB... [root@test-centos64 test]#Breaks again after a modifiersname is added to cn=config
[root@test-centos64 test]# diff -u config-2-ok.ldif config-3-fail.ldif --- config-2-ok.ldif 2013-05-27 11:49:17.691253291 +0200 +++ config-3-fail.ldif 2013-05-27 11:52:57.346255334 +0200 @@ -42,7 +42,7 @@ olcLogLevel: Stats olcLogLevel: Stats2 entryCSN: 20130524161850.764209Z#000000#000#000000 -modifiersName: cn=config +modifiersName: cn=Alice,ou=People,dc=test modifyTimestamp: 20130524161850Z dn: cn=module{0},cn=config [root@test-centos64 test]# [root@test-centos64 test]# slapadd -v -n0 -F config-3 -l config-3-fail.ldif 51a32daf str2entry: invalid value for attributeType modifiersName #0 (syntax 1.3.6.1.4.1.1466.115.121.1.12) slapadd: could not parse entry (line=1) _# 7.35% eta none elapsed none spd 3.0 M/s Closing DB... [root@test-centos64 test]#Sorry if I do not see the obvious. Is there any possibility to get this to work for cn=config as well as entries below cn=config.
How much freedom would we have to rearrange the entries und cn=config so we could have the schema defintions read before olcGlobal ?
Greetings Christian
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hyc＠symas.com