I forgot to mention that the query is done as federated call. Local call
results an server error but bit more detail:
check(??0, null): null node value
On 20/04/2023 15.36, Andy Seaborne wrote:
On 20/04/2023 13:23, Mikael Pesonen wrote:
I have a query with some counts for statistics (only way I got them
working)
{ SELECT ?ls_id (count(distinct ?pl_fi) as ?fi_count) WHERE {
GRAPH ?ls_id {
?c skos:prefLabel ?pl_fi FILTER(LANG(?pl_fi) = "fi")
}} GROUP BY ?ls_id }
OPTIONAL {
{ SELECT ?ls_id (count(distinct ?pl_en) as ?en_count)WHERE {
GRAPH ?ls_id {
?c skos:prefLabel ?pl_en FILTER(LANG(?pl_en) = "en")
}} GROUP BY ?ls_id }
}
OPTIONAL {
{ SELECT ?ls_id (count(distinct ?pl_sv) as ?sv_count)WHERE {
GRAPH ?ls_id {
?c skos:prefLabel ?pl_sv FILTER(LANG(?pl_sv) = "sv")
}} GROUP BY ?ls_id }
}
With en and fi languages this works, but adding sv it fails with
Server Error and 12000+ lines of log for one exception.
Does en and sv work?
Log is truncated so beginning of the log is missing. How could I
proceed with debugging this? Jena is 4.6.1 and I'm running queries in
Fuseki web GUI.
Last lines of exception log:
No Jena code there.
What you are looking is the top of the stacktrace (back to the
operation in Jena) and also the top of the "caused by"
IF they are all the same, put one example on a gist.
Andy
Apr 20 15:08:40 x.lingsoft.fi java[832674]: at
org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:497)
~[fuseki-server.jar:4.6.1]
Apr 20 15:08:40 x.lingsoft.fi java[832674]: at
org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:282)
~[fuseki-server.jar:4.6.1]
Apr 20 15:08:40 x.lingsoft.fi java[832674]: at
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:319)
~[fuseki-server.jar:4.6.1]
Apr 20 15:08:40 x.lingsoft.fi java[832674]: at
org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:100)
~[fuseki-server.jar:4.6.1]
Apr 20 15:08:40 x.lingsoft.fi java[832674]: at
org.eclipse.jetty.io.SelectableChannelEndPoint$1.run(SelectableChannelEndPoint.java:53)
~[fuseki-server.jar:4.6.1]
Apr 20 15:08:40 x.lingsoft.fi java[832674]: at
org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.runTask(AdaptiveExecutionStrategy.java:412)
~[fuseki-server.jar:4.6.1]
Apr 20 15:08:40 x.lingsoft.fi java[832674]: at
org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.consumeTask(AdaptiveExecutionStrategy.java:381)
~[fuseki-server.jar:4.6.1]
Apr 20 15:08:40 x.lingsoft.fi java[832674]: at
org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.tryProduce(AdaptiveExecutionStrategy.java:268)
~[fuseki-server.jar:4.6.1]
Apr 20 15:08:40 x.lingsoft.fi java[832674]: at
org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.lambda$new$0(AdaptiveExecutionStrategy.java:138)
~[fuseki-server.jar:4.6.1]
Apr 20 15:08:40 x.lingsoft.fi java[832674]: at
org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:407)
~[fuseki-server.jar:4.6.1]
Apr 20 15:08:40 x.lingsoft.fi java[832674]: at
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:894)
~[fuseki-server.jar:4.6.1]
Apr 20 15:08:40 x.lingsoft.fi java[832674]: at
org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1038)
~[fuseki-server.jar:4.6.1]
Apr 20 15:08:40 x.lingsoft.fi java[832674]: [2023-04-20 15:08:40]
Fuseki INFO [6607] 500 Server Error (40.263 s)
Apr 20 15:08:40 x.lingsoft.fi java[832674]: [2023-04-20 15:08:40]
Fuseki INFO [6606] 500 Server Error (40.279 s)
--
Lingsoft - 30 years of Leading Language Management
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Mikael Pesonen
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