[Neo4j] Graph Data Corruption?

Mattias Persson mattias at neotechnology.com
Sat Oct 15 17:05:48 CEST 2011


Hi John,

So it seems to be related to loading of node/relationship properties. Are
those nodes/relationships consistently getting this exception or do you see
this randomly during brief moments throughout the graph? Would it also be
possible to have a look at your dataset somehow?

2011/10/14 John Howard <johnyhowdy at gmail.com>

> Hello,
>
> We have started getting some strange exceptions(stack trace below) while
> accessing node relationships.
> It happened on a node's relationship and we deleted that relationship and
> related node, so we were able to access the node and all its relationships.
> Then it started happening to some other nodes and their relationships. And
> we do not know how many node relationships are corrupted in the graph.
> We are using 1.4.1 version. We have around 50k nodes and 100k
> relationships.
>
> Appreciate your help.
>
>
> org.neo4j.kernel.impl.nioneo.store.InvalidRecordException: Not in use,
> blockId[1977868]
>
>        at
>
> org.neo4j.kernel.impl.nioneo.store.AbstractDynamicStore.getRecord(AbstractDynamicStore.java:472)
>
>        at
>
> org.neo4j.kernel.impl.nioneo.store.AbstractDynamicStore.getLightRecords(AbstractDynamicStore.java:429)
>
>        at
>
> org.neo4j.kernel.impl.nioneo.store.PropertyStore.getRecord(PropertyStore.java:374)
>
>        at
>
> org.neo4j.kernel.impl.nioneo.xa.ReadTransaction.loadPropertyValue(ReadTransaction.java:208)
>
>        at
>
> org.neo4j.kernel.impl.persistence.PersistenceManager.loadPropertyValue(PersistenceManager.java:87)
>
>        at
>
> org.neo4j.kernel.impl.core.NodeManager.loadPropertyValue(NodeManager.java:593)
>
>        at
> org.neo4j.kernel.impl.core.Primitive.getPropertyValue(Primitive.java:543)
>
>        at
> org.neo4j.kernel.impl.core.Primitive.getProperty(Primitive.java:159)
>
>        at
>
> org.neo4j.kernel.impl.core.RelationshipProxy.getProperty(RelationshipProxy.java:90)
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-- 
Mattias Persson, [mattias at neotechnology.com]
Hacker, Neo Technology
www.neotechnology.com


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