Hi all,

I'm one of the current active Didactor application administrators. While 
updating an older installation of this software to the latest version I 
noticed the following messages in mmbase.log:

2006-03-09 22:36:04,144 INFO  org.mmbase.module.Module info.66  - Starting 
module sendmail
2006-03-09 22:36:04,145 INFO  org.mmbase.module.Module info.66  - Starting 
module jdbc
2006-03-09 22:36:04,145 INFO  org.mmbase.module.Module info.66  - Starting 
module upload
2006-03-09 22:36:04,147 INFO  org.mmbase.servlet.MMBaseServlet setMMBase.156  
- MMBase servlets are ready to receive requests
2006-03-09 22:36:04,230 INFO  mmbob.util.fieldprocessors.PostingPreProcessor 
<init>.?  - init postprocessor
2006-03-09 22:36:19,284 INFO  bridge.jsp.taglib.ContextReferrerTag 
setPageContext.80  - Using  EVAL_BODY_BUFFERED
2006-03-09 22:36:45,412 ERROR mmbase.module.core.MMObjectNode 
getRealNodes.1554  - We lost a few nodes during conversion from 
virtualnodes(6) to realnodes(5)
2006-03-09 22:36:48,908 ERROR mmbase.module.core.MMObjectNode 
getRealNodes.1554  - We lost a few nodes during conversion from 
virtualnodes(6) to realnodes(5)
2006-03-09 22:36:50,046 ERROR mmbase.module.core.MMObjectNode 
getRealNodes.1554  - We lost a few nodes during conversion from 
virtualnodes(6) to realnodes(5)
2006-03-09 22:36:53,609 ERROR mmbase.module.core.MMObjectNode 
getRealNodes.1554  - We lost a few nodes during conversion from 
virtualnodes(6) to realnodes(5)
2006-03-09 22:36:54,378 ERROR mmbase.module.core.MMObjectNode 
getRealNodes.1554  - We lost a few nodes during conversion from 
virtualnodes(6) to realnodes(5)
2006-03-09 22:36:54,945 ERROR mmbase.module.core.MMObjectNode 
getRealNodes.1554  - We lost a few nodes during conversion from 
virtualnodes(6) to realnodes(5)
2006-03-09 22:37:18,467 WARN  mmbase.module.core.ClusterBuilder 
addRelationDirections.1656  - No relation defined between educations and 
images using RelationStep(tablename:pos2rel, alias:pos2rel, nodes:[], 
dir:destination, role:51130) with direction(s) BOTH. Searching in 
'destination' direction now, but perhaps the query should be fixed, because 
this should always result nothing.
2006-03-09 22:37:18,930 WARN  mmbase.module.core.ClusterBuilder 
addRelationDirections.1656  - No relation defined between learnblocks and 
images using RelationStep(tablename:pos2rel, alias:pos2rel, nodes:[], 
dir:destination, role:51130) with direction(s) BOTH. Searching in 
'destination' direction now, but perhaps the query should be fixed, because 
this should always result nothing.

The ones I'm concerned about are about the lost nodes. Unfortunately the 
developers working on this application have not seen this error before and 
have no idea of the impact of this error. Does anyone in the MMbase community 
know what the impact of this error is/will be and how we could possibly fix 
this.
While I'm at it; does anybody know what the ClusterBuilder error means 
exactly, whether this is a code of a configuration problem, and how this can 
be fixed?

Some environment information:
Sun Java 1.4.2.10
Tomcat 5.5.15
MMbase 1.7.3-final 20050107

If more information is needed (I'm not sure if I should supply more) feel free 
to ask!

Thanks in advance!

Arjen Roodselaar

-- 
Quanza Engineering B.V.              Elandsstraat 44
Arjen Roodselaar                          1016 SG Amsterdam
@: [EMAIL PROTECTED]               T: +31 20 528 9656
M: +31 6 52 380 484                     F: +31 20 528 9657

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