several times a day queries take several minutes

Type: BugVersion: 2.7.4_03Priority: NormalStatus: ActiveReplies: 3
#1

we have queries like (see the database that we handed over to you for other issues)

select distinct o from ObjectNode o join o.properties p1 join o.properties p2 where o.classIdentifier = "(OP)" and (o.linkedObjects.classIdentifier = "(TC)" and  o.linkedObjects.objectNameUpper = "MILLING-EL" and o.linkedObjects.type =1) and (o.properties.name = "feedbackState" and o.properties.doubleValue != 13) and ((p1.name = "plannedState" and p1.doubleValue = 4 and p1.state = 4) or ((p1.name = "startableState" and p1.doubleValue = 0) and (p2.name = "plannedState" and p2.doubleValue = 4)))

that normally take around 10 seconds but sometimes several times a day take around 3-10 minutes. Our system has a load of around 400 concurrent webSocket connections that normally only query (without updates, like the above example)

 

 

 

#2

Can you monitor the server machine and identify unusual activity at the server when that happens? e.g. other operations against ObjectDB, other server activity. Hard drive / memory usage?

Is it related to issue #2257 that is still open?

Suspected configuration:

 

ObjectDB Support
ObjectDB - Fast Object Database for Java (JPA/JDO)
#3

we do not see a link to the open issue as the database seems to be ok.

we'll change the options accordingly

#4

OK. Please report if these configuration changes have any effect on this issue.

ObjectDB Support
ObjectDB - Fast Object Database for Java (JPA/JDO)

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