You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@calcite.apache.org by "Julian Hyde (JIRA)" <ji...@apache.org> on 2015/09/04 09:44:46 UTC
[jira] [Resolved] (CALCITE-874) ReflectiveRelMetadataProvider is
not thread-safe
[ https://issues.apache.org/jira/browse/CALCITE-874?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Julian Hyde resolved CALCITE-874.
---------------------------------
Resolution: Fixed
Fix Version/s: 1.5.0-incubating
Fixed in http://git-wip-us.apache.org/repos/asf/incubator-calcite/commit/ba789deb.
> ReflectiveRelMetadataProvider is not thread-safe
> ------------------------------------------------
>
> Key: CALCITE-874
> URL: https://issues.apache.org/jira/browse/CALCITE-874
> Project: Calcite
> Issue Type: Bug
> Reporter: Julian Hyde
> Assignee: Julian Hyde
> Fix For: 1.5.0-incubating
>
>
> There is a concurrency issue when a ReflectiveRelMetadataProvider is used from several queries simultaneously.
> This most often shows up in CsvTest, which fails about 1 in 12 times. Several unit tests will simultaneously fail with a stack trace similar to this:{noformat}java.lang.AssertionError: Internal error: Error while applying rule EnumerableProjectRule, args [rel#40:LogicalProject.NONE.[](input=rel#38:Subset#1.NONE.[],JOINEDAT=$1,JOINTIME=$2,JOINTIMES=$3)]
> at org.apache.calcite.rel.AbstractRelNode.metadata(AbstractRelNode.java:272)
> at org.apache.calcite.rel.metadata.RelMetadataQuery.getNonCumulativeCost(RelMetadataQuery.java:114)
> at org.apache.calcite.plan.volcano.VolcanoPlanner.getCost(VolcanoPlanner.java:1111)
> at org.apache.calcite.plan.volcano.RelSubset.propagateCostImprovements0(RelSubset.java:363)
> at org.apache.calcite.plan.volcano.RelSubset.propagateCostImprovements(RelSubset.java:344)
> at org.apache.calcite.plan.volcano.VolcanoPlanner.addRelToSet(VolcanoPlanner.java:1826)
> at org.apache.calcite.plan.volcano.VolcanoPlanner.registerImpl(VolcanoPlanner.java:1759)
> at org.apache.calcite.plan.volcano.VolcanoPlanner.register(VolcanoPlanner.java:1016)
> at org.apache.calcite.plan.volcano.VolcanoPlanner.ensureRegistered(VolcanoPlanner.java:1036)
> at org.apache.calcite.plan.volcano.VolcanoPlanner.ensureRegistered(VolcanoPlanner.java:1939)
> at org.apache.calcite.plan.volcano.VolcanoRuleCall.transformTo(VolcanoRuleCall.java:138)
> at org.apache.calcite.plan.RelOptRuleCall.transformTo(RelOptRuleCall.java:213)
> at org.apache.calcite.rel.convert.ConverterRule.onMatch(ConverterRule.java:118)
> at org.apache.calcite.plan.volcano.VolcanoRuleCall.onMatch(VolcanoRuleCall.java:228)
> at org.apache.calcite.plan.volcano.VolcanoPlanner.findBestExp(VolcanoPlanner.java:807)
> at org.apache.calcite.tools.Programs$5.run(Programs.java:273)
> at org.apache.calcite.tools.Programs$SequenceProgram.run(Programs.java:321)
> at org.apache.calcite.prepare.Prepare.optimize(Prepare.java:144)
> at org.apache.calcite.prepare.Prepare.prepareSql(Prepare.java:281)
> at org.apache.calcite.prepare.Prepare.prepareSql(Prepare.java:189)
> at org.apache.calcite.prepare.CalcitePrepareImpl.prepare2_(CalcitePrepareImpl.java:698)
> at org.apache.calcite.prepare.CalcitePrepareImpl.prepare_(CalcitePrepareImpl.java:584)
> at org.apache.calcite.prepare.CalcitePrepareImpl.prepareSql(CalcitePrepareImpl.java:554)
> at org.apache.calcite.jdbc.CalciteConnectionImpl.parseQuery(CalciteConnectionImpl.java:207)
> at org.apache.calcite.jdbc.CalciteMetaImpl.prepareAndExecute(CalciteMetaImpl.java:563)
> at org.apache.calcite.avatica.AvaticaConnection.prepareAndExecuteInternal(AvaticaConnection.java:477)
> at org.apache.calcite.avatica.AvaticaStatement.executeInternal(AvaticaStatement.java:110)
> at org.apache.calcite.avatica.AvaticaStatement.executeQuery(AvaticaStatement.java:130)
> at org.apache.calcite.test.CsvTest.testDateType(CsvTest.java:368){noformat}
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)