Sebastian Schaffert created MARMOTTA-280:
--------------------------------------------
Summary: SPARQL Timeout: Too many error messages and invalid
transaction
Key: MARMOTTA-280
URL: https://issues.apache.org/jira/browse/MARMOTTA-280
Project: Marmotta
Issue Type: Bug
Reporter: Sebastian Schaffert
When the new SPARQL timeout mechanism stops a running SPARQL query, the error
log is filled with exception traces; this should not happen, the SPARQL
evaluation should abort completely on such errors.
Stack Traces:
11:21:19.926 ERROR o.a.m.k.s.p.KiWiSparqlConnection - error executing SPARQL
query
java.util.concurrent.ExecutionException: org.postgresql.util.PSQLException:
FEHLER: aktuelle Transaktion wurde abgebrochen, Befehle werden bis zum Ende der
Transaktion ignoriert
at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:252)
[na:1.7.0_03]
at java.util.concurrent.FutureTask.get(FutureTask.java:111)
[na:1.7.0_03]
at
org.apache.marmotta.kiwi.sparql.persistence.KiWiSparqlConnection.evaluateJoin(KiWiSparqlConnection.java:314)
~[kiwi-sparql-3.1.0-incubating-20130722.144056-26.jar:3.1.0-incubating-SNAPSHOT]
at
org.apache.marmotta.kiwi.sparql.evaluation.KiWiEvaluationStrategyImpl.evaluate(KiWiEvaluationStrategyImpl.java:73)
[kiwi-sparql-3.1.0-incubating-20130722.144056-26.jar:3.1.0-incubating-SNAPSHOT]
Later:
11:21:19.927 WARN o.a.m.kiwi.sail.KiWiSailConnection - Rolling back
transaction due to connection close
java.lang.Throwable: null
at
org.openrdf.sail.helpers.SailConnectionBase.close(SailConnectionBase.java:240)
[sesame-sail-api-2.7.3.jar:na]
at
org.openrdf.sail.helpers.SailConnectionWrapper.close(SailConnectionWrapper.java:88)
[sesame-sail-api-2.7.3.jar:na]
at
org.openrdf.sail.helpers.SailConnectionWrapper.close(SailConnectionWrapper.java:88)
[sesame-sail-api-2.7.3.jar:na]
at
org.openrdf.repository.sail.SailRepositoryConnection.close(SailRepositoryConnection.java:129)
[sesame-repository-sail-2.7.3.jar:na]
And later:
11:21:19.928 ERROR o.a.m.p.s.s.sparql.SparqlServiceImpl - error while
evaluating query: {}
org.openrdf.query.QueryEvaluationException:
org.openrdf.query.QueryEvaluationException: java.sql.SQLException: error
executing SPARQL query
at
org.openrdf.repository.sail.SailTupleQuery.evaluate(SailTupleQuery.java:67)
~[sesame-repository-sail-2.7.3.jar:na]
at
org.openrdf.repository.sail.SailTupleQuery.evaluate(SailTupleQuery.java:75)
~[sesame-repository-sail-2.7.3.jar:na]
at
org.apache.marmotta.platform.sparql.services.sparql.SparqlServiceImpl.query(SparqlServiceImpl.java:248)
~[marmotta-sparql-3.1.0-incubating-20130722.130026-21.jar:3.1.0-incubating-SNAPSHOT]
at
org.apache.marmotta.platform.sparql.services.sparql.SparqlServiceImpl.access$200(SparqlServiceImpl.java:71)
~[marmotta-sparql-3.1.0-incubating-20130722.130026-21.jar:3.1.0-incubating-SNAPSHOT]
at
org.apache.marmotta.platform.sparql.services.sparql.SparqlServiceImpl$2.call(SparqlServiceImpl.java:133)
[marmotta-sparql-3.1.0-incubating-20130722.130026-21.jar:3.1.0-incubating-SNAPSHOT]
at
org.apache.marmotta.platform.sparql.services.sparql.SparqlServiceImpl$2.call(SparqlServiceImpl.java:122)
[marmotta-sparql-3.1.0-incubating-20130722.130026-21.jar:3.1.0-incubating-SNAPSHOT]
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
[na:1.7.0_03]
at java.util.concurrent.FutureTask.run(FutureTask.java:166)
[na:1.7.0_03]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
[na:1.7.0_03]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
[na:1.7.0_03]
at java.lang.Thread.run(Thread.java:722) [na:1.7.0_03]
Caused by: org.openrdf.sail.SailException:
org.openrdf.query.QueryEvaluationException: java.sql.SQLException: error
executing SPARQL query
at
org.apache.marmotta.kiwi.sparql.sail.KiWiSparqlSailConnection.evaluate(KiWiSparqlSailConnection.java:92)
~[kiwi-sparql-3.1.0-incubating-20130722.144056-26.jar:3.1.0-incubating-SNAPSHOT]
at
org.openrdf.repository.sail.SailTupleQuery.evaluate(SailTupleQuery.java:60)
~[sesame-repository-sail-2.7.3.jar:na]
... 10 common frames omitted
Caused by: org.openrdf.query.QueryEvaluationException: java.sql.SQLException:
error executing SPARQL query
at
org.apache.marmotta.kiwi.sparql.evaluation.KiWiEvaluationStrategyImpl.evaluate(KiWiEvaluationStrategyImpl.java:80)
~[kiwi-sparql-3.1.0-incubating-20130722.144056-26.jar:3.1.0-incubating-SNAPSHOT]
Caused by: java.sql.SQLException: error executing SPARQL query
at
org.apache.marmotta.kiwi.sparql.persistence.KiWiSparqlConnection.evaluateJoin(KiWiSparqlConnection.java:343)
~[kiwi-sparql-3.1.0-incubating-20130722.144056-26.jar:3.1.0-incubating-SNAPSHOT]
at
org.apache.marmotta.kiwi.sparql.evaluation.KiWiEvaluationStrategyImpl.evaluate(KiWiEvaluationStrategyImpl.java:73)
~[kiwi-sparql-3.1.0-incubating-20130722.144056-26.jar:3.1.0-incubating-SNAPSHOT]
... 22 common frames omitted
Caused by: java.util.concurrent.ExecutionException:
org.postgresql.util.PSQLException: FEHLER: aktuelle Transaktion wurde
abgebrochen, Befehle werden bis zum Ende der Transaktion ignoriert
at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:252)
[na:1.7.0_03]
at java.util.concurrent.FutureTask.get(FutureTask.java:111)
[na:1.7.0_03]
at
org.apache.marmotta.kiwi.sparql.persistence.KiWiSparqlConnection.evaluateJoin(KiWiSparqlConnection.java:314)
~[kiwi-sparql-3.1.0-incubating-20130722.144056-26.jar:3.1.0-incubating-SNAPSHOT]
... 23 common frames omitted
Caused by: org.postgresql.util.PSQLException: FEHLER: aktuelle Transaktion
wurde abgebrochen, Befehle werden bis zum Ende der Transaktion ignoriert
at
org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2157)
~[postgresql-9.2-1002.jdbc4.jar:na]
at
org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1886)
~[postgresql-9.2-1002.jdbc4.jar:na]
at
org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:255)
~[postgresql-9.2-1002.jdbc4.jar:na]
at
org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:555)
~[postgresql-9.2-1002.jdbc4.jar:na]
at
org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:417)
~[postgresql-9.2-1002.jdbc4.jar:na]
at
org.postgresql.jdbc2.AbstractJdbc2Statement.executeQuery(AbstractJdbc2Statement.java:302)
~[postgresql-9.2-1002.jdbc4.jar:na]
at
org.apache.marmotta.kiwi.sparql.persistence.KiWiSparqlConnection$1.call(KiWiSparqlConnection.java:307)
~[kiwi-sparql-3.1.0-incubating-20130722.144056-26.jar:3.1.0-incubating-SNAPSHOT]
at
org.apache.marmotta.kiwi.sparql.persistence.KiWiSparqlConnection$1.call(KiWiSparqlConnection.java:304)
~[kiwi-sparql-3.1.0-incubating-20130722.144056-26.jar:3.1.0-incubating-SNAPSHOT]
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