Invalid SPARQL endpoint response (HTTP status 404)

[lello1231]

Issue description

The issue is that a SPARQL query is failing to execute against a Blazegraph RDF store due to a missing or invalid namespace. The specific error is a "DatasetNotFoundException" related to the "public-current" namespace.

Expected behavior

The expected behavior is that the SPARQL query should successfully execute against the Blazegraph RDF store and return the requested results.

Specifications

• Node version: v8.1.0+beta.12
• Platform:ubuntu 22
• Node wallet:0x5f81410501Dd370b19bc301375259ce06f337B3e
• Node libp2p identity:

Contact details

• Email:[email protected]

Error logs

[2024-10-27 07:28:17] ERROR: {Operation ID: 9bf633a3-458a-498a-9d60-57cde6ae1f17} [v1_0_0HandleGetInitCommand] (Command ID: f0d14071-398c-41b4-9ee4-688ffe532580) Command error (GetInitRemoteError): Invalid SPARQL endpoint response from http://localhost:9999/blazegraph/namespace/public-current/sparql (HTTP status 404):
SPARQL-QUERY: queryStr=ASK WHERE { GRAPH assertion:0x3f74d289c85db909f4d9fc0768292d471b5a018eb2743f9429e5b7387d72316a { ?s ?p ?o } }
java.util.concurrent.ExecutionException: java.lang.RuntimeException: com.bigdata.rdf.sail.webapp.DatasetNotFoundException: namespace=public-current
at java.base/java.util.concurrent.FutureTask.report(FutureTask.java:122)
at java.base/java.util.concurrent.FutureTask.get(FutureTask.java:191)
at com.bigdata.rdf.sail.webapp.BigdataServlet.submitApiTask(BigdataServlet.java:294)
at com.bigdata.rdf.sail.webapp.QueryServlet.doSparqlQuery(QueryServlet.java:678)
at com.bigdata.rdf.sail.webapp.QueryServlet.doPost(QueryServlet.java:275)
at com.bigdata.rdf.sail.webapp.RESTServlet.doPost(RESTServlet.java:269)
at com.bigdata.rdf.sail.webapp.MultiTenancyServlet.doPost(MultiTenancyServlet.java:195)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:865)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:535)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:146)
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:257)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:255)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1340)
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:203)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:201)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1242)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:144)
at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:220)
at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
at org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:335)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
at org.eclipse.jetty.server.Server.handle(Server.java:503)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:364)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:260)
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:305)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103)
at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:118)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:333)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:310)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:168)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:126)
at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:366)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:765)
at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:683)
at java.base/java.lang.Thread.run(Thread.java:829)
Caused by: java.lang.RuntimeException: com.bigdata.rdf.sail.webapp.DatasetNotFoundException: namespace=public-current
at com.bigdata.rdf.sail.BigdataSail.getReadOnlyConnection(BigdataSail.java:1506)
at com.bigdata.rdf.sail.BigdataSailRepository.getReadOnlyConnection(BigdataSailRepository.java:140)
at com.bigdata.rdf.task.AbstractApiTask.getQueryConnection(AbstractApiTask.java:247)
at com.bigdata.rdf.task.AbstractApiTask.getQueryConnection(AbstractApiTask.java:221)
at com.bigdata.rdf.sail.webapp.QueryServlet$SparqlQueryTask.call(QueryServlet.java:746)
at com.bigdata.rdf.sail.webapp.QueryServlet$SparqlQueryTask.call(QueryServlet.java:695)
at com.bigdata.rdf.task.ApiTaskForIndexManager.call(ApiTaskForIndexManager.java:68)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
... 1 more
Caused by: com.bigdata.rdf.sail.webapp.DatasetNotFoundException: namespace=public-current
at com.bigdata.rdf.sail.BigdataSail$BigdataSailConnection.(BigdataSail.java:2071)
at com.bigdata.rdf.sail.BigdataSail$BigdataSailReadOnlyConnection.(BigdataSail.java:5235)
at com.bigdata.rdf.sail.BigdataSail._getReadOnlyConnection(BigdataSail.java:1539)
at com.bigdata.rdf.sail.BigdataSail.getReadOnlyConnection(BigdataSail.java:1502)
... 10 more

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