Question

LDAP and BDB fail after reboot

Asked by: jockox3

This has happened to me twice now, having rebuilt the machine in between.  

I'm running SuSe 9.3, with a minimal system to start with as I wanted to build in services one by one.  The first, so I can get users logging in, was LDAP.  So I selected OpenLDAP 2.2.23 during installation and it selected BDB 4.3..27 as a dependency.  

I carefully got it to work, and managed to get a client machine to use the LDAP service to log a user in no problem.  I have not consciously done any software changes, just configuration changes and the vast majority of those, with the exception of configuring /etc/openldap/slapd.conf and ldapadd-ing the root of the LDAP tree, in YAST.

But then I rebooted the LDAP server machine and it all fails.  Trying to start slapd afterwards (again through the YAST runlevel editor) and investigating logs I get the following:

Jul 30 00:10:20 server3 slapd[7387]: @(#) $OpenLDAP: slapd 2.2.23 (Mar 19 2005 20:43:26) $      abuild@salam:/usr/src/packages/BUILD/openldap-2.2.23/servers/slapd
Jul 30 00:10:20 server3 slapd[7387]: bdb_back_initialize: Sleepycat Software: Berkeley DB 4.3.27: (June  1, 2005)
Jul 30 00:10:20 server3 slapd[7387]: bdb_db_init: Initializing BDB database
Jul 30 00:10:20 server3 slapd[7388]: bdb(dc=mydomain,dc=co,dc=uk): Program version 4.3 doesn't match environment version
Jul 30 00:10:20 server3 slapd[7388]: bdb_db_open: dbenv_open failed: DB_VERSION_MISMATCH: Database environment version mismatch (-30974)
Jul 30 00:10:20 server3 slapd[7388]: backend_startup: bi_db_open failed! (-30974)
Jul 30 00:10:20 server3 slapd[7388]: bdb(dc=mydomain,dc=co,dc=uk): DB_ENV->lock_id_free interface requires an environment configured for the locking subsystem
Jul 30 00:10:20 server3 slapd[7388]: bdb(dc=mydomain,dc=co,dc=uk): txn_checkpoint interface requires an environment configured for the transaction subsystem
Jul 30 00:10:20 server3 slapd[7388]: bdb_db_destroy: txn_checkpoint failed: Invalid argument (22)
Jul 30 00:10:20 server3 slapd[7388]: slapd stopped.
Jul 30 00:10:20 server3 slapd[7388]: connections_destroy: nothing to destroy.

Does anyone have any ideas what's going on here?  I googled extensively for combinations of some of the key phrases in these log entries but with little success.  I'm desperate.  I can't make any further headway with getting my system back up and running till I can get LDAP running consistently.

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Asked On
2005-07-29 at 16:34:56ID21509692
Tags

environment

,

version

,

requires

,

Berkeley DB

Topic

Databases Miscellaneous

Participating Experts
2
Points
500
Comments
5

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Answers

 

by: jdfoxPosted on 2005-07-30 at 03:58:10ID: 14560961

This is to do with SuSE 9.3 coming with BDB 4.3.27: SuSE 9.2 came with BDB 4.2.x, and the move to 4.3 has caused problems with Cyrus, Subversion and OpenLDAP, esp. when upgrading SuSE 9.2 up to 9.3.  Chalk it up to incomplete testing, I'm afraid.

OpenLDAP's Faq-o-matic currently reports:
"While the latest version of OpenLDAP Software generally works best with the latest version (with latest patches) of Berkeley DB available from Sleeycat Software (http://www.sleepycat.com/), that may not always be the case. So, read the distribution README."

But it also says:
"Berkeley DB 4.2 (latest revision with patches) should be used with OpenLDAP 2.1 (and later)."

Also, the latest (2.3.4) distribution README still explicitly calls for BDB 4.2, implying that the same will be true for your 2.2.23:
http://www.openldap.org/software/release/readme.html

I read someone claiming on one list that re-installing OpenLDAP on his SuSE 9.3 made it work with the included BDB 4.3, though I haven't yet heard how: perhaps a version number variable in a config file is getting set later than it should be, which might mean that only on the second installation does it get picked up.

So try re-installing the OpenLDAP package, after backing up any config file changes you made: that should be a quick exercise.  If that doesn't work then please post back, and we can work through attempting to downgrade BDB to 4.2.  This might mean installing some packages from sources: you have been warned. :)

Or you could back off to SuSE 9.2, and wait for less busy people to debug this sort of thing.  9.3 is still pretty new.

HTH...

 

by: jockox3Posted on 2005-07-30 at 04:22:10ID: 14561003

I did already try reinstalling just LDAP but it won't let me.  There's a whole load of other packages that they have built dependent on BDB4.3.x

I then tried to install 9.2 from scratch, but I guess I need to download a 9.2 install CD rather than just pointing the 9.3 one at the 9.2 directory on the mirror, so in the interim I tried again to install Debian...:)  But I'm a bit scared of doing without YAST...:)  So I might end up getting a 9.2 CD and going from there in the end.  Will let you know later today.

Cheers

 

by: jdfoxPosted on 2005-07-30 at 07:50:06ID: 14561686

Well, I find package management in Debian much easier thanks to Apt.

But there's Apt for RPM-based distros now, including SuSE:
http://apt4rpm.sourceforge.net/
http://linux01.gwdg.de/apt4rpm/

And there's even YaST for Debian:
http://yast4debian.alioth.debian.org/

So there are several routes open for you.  

 

by: gheistPosted on 2008-03-31 at 13:08:22ID: 21248687

different versions of bdb coexist just fine.

is slapcat on old data an option? then you can slapadd them into new format.

 

by: gheistPosted on 2008-10-01 at 11:36:05ID: 22617536

run file command against suspect databases and install correct version. Then get old slapcat. Then do slapadd with new version.

20120131-EE-VQP-002

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