我的怀疑点还是多线程引起的。 你能具体描述一下你们gateway的行为吗？ 是一个web server？
另外，你可以在table env执行query前加上 RelMetadataQueryBase.THREAD_PROVIDERS .set(JaninoRelMetadataProvider.of(FlinkDefaultRelMetadataProvider.INSTANCE())); 这句话临时fix。 wind.fly....@outlook.com <wind.fly....@outlook.com> 于2020年7月28日周二 上午11:02写道： > 不是多线程同时操作一个tableEnvironment，每执行一次都会创建一个TableEnvironment > ________________________________ > 发件人: godfrey he <godfre...@gmail.com> > 发送时间: 2020年7月28日 9:58 > 收件人: user-zh <user-zh@flink.apache.org> > 主题: Re: flink1.11.0 执行sqlQuery时报NullPointException > > 你们是否在多线程环境下使用 TableEnvironment ? > TableEnvironment 不是线程安全的，多线程情况使用可能出现一些莫名其妙的问题。 > > godfrey he <godfre...@gmail.com> 于2020年7月28日周二 上午9:55写道： > > > hi 能给出详细的schema信息吗？ > > > > wind.fly....@outlook.com <wind.fly....@outlook.com> 于2020年7月27日周一 > > 下午7:02写道： > > > >> 补充一下，执行的sql如下： > >> > >> select order_no, order_time from > >> x.ods.ods_binlog_test_trip_create_t_order_1 > >> > >> ________________________________ > >> 发件人: wind.fly....@outlook.com <wind.fly....@outlook.com> > >> 发送时间: 2020年7月27日 18:49 > >> 收件人: user-zh@flink.apache.org <user-zh@flink.apache.org> > >> 主题: flink1.11.0 执行sqlQuery时报NullPointException > >> > >> Hi,all： > >> 本人正在为公司之前基于flink1.10的gateway升级flink版本到1.11，用的hive > >> catalog，建表后，执行sqlQuery方法时报NullPointException，希望给出排错建议，具体报错信息如下： > >> Caused by: java.lang.NullPointerException > >> at java.util.Objects.requireNonNull(Objects.java:203) > >> at > >> > org.apache.calcite.rel.metadata.RelMetadataQuery.<init>(RelMetadataQuery.java:141) > >> at > >> > org.apache.calcite.rel.metadata.RelMetadataQuery.<init>(RelMetadataQuery.java:106) > >> at > >> > org.apache.flink.table.planner.plan.metadata.FlinkRelMetadataQuery.<init>(FlinkRelMetadataQuery.java:73) > >> at > >> > org.apache.flink.table.planner.plan.metadata.FlinkRelMetadataQuery.instance(FlinkRelMetadataQuery.java:52) > >> at > >> > org.apache.flink.table.planner.calcite.FlinkRelOptClusterFactory$$anon$1.get(FlinkRelOptClusterFactory.scala:39) > >> at > >> > org.apache.flink.table.planner.calcite.FlinkRelOptClusterFactory$$anon$1.get(FlinkRelOptClusterFactory.scala:38) > >> at > >> > org.apache.calcite.plan.RelOptCluster.getMetadataQuery(RelOptCluster.java:178) > >> at > >> > org.apache.calcite.rel.logical.LogicalProject.create(LogicalProject.java:118) > >> at > >> > org.apache.calcite.rel.logical.LogicalProject.create(LogicalProject.java:111) > >> at > >> > org.apache.calcite.rel.core.RelFactories$ProjectFactoryImpl.createProject(RelFactories.java:180) > >> at org.apache.calcite.tools.RelBuilder.project_(RelBuilder.java:1462) > >> at org.apache.calcite.tools.RelBuilder.project(RelBuilder.java:1256) > >> at > >> org.apache.calcite.tools.RelBuilder.projectNamed(RelBuilder.java:1521) > >> at > >> > org.apache.calcite.sql2rel.SqlToRelConverter.convertSelectList(SqlToRelConverter.java:4125) > >> at > >> > org.apache.calcite.sql2rel.SqlToRelConverter.convertSelectImpl(SqlToRelConverter.java:685) > >> at > >> > org.apache.calcite.sql2rel.SqlToRelConverter.convertSelect(SqlToRelConverter.java:642) > >> at > >> > org.apache.calcite.sql2rel.SqlToRelConverter.convertQueryRecursive(SqlToRelConverter.java:3345) > >> at > >> > org.apache.calcite.sql2rel.SqlToRelConverter.convertQuery(SqlToRelConverter.java:568) > >> at org.apache.flink.table.planner.calcite.FlinkPlannerImpl.org > >> > $apache$flink$table$planner$calcite$FlinkPlannerImpl$$rel(FlinkPlannerImpl.scala:164) > >> at > >> > org.apache.flink.table.planner.calcite.FlinkPlannerImpl.rel(FlinkPlannerImpl.scala:151) > >> at > >> > org.apache.flink.table.planner.calcite.SqlExprToRexConverterImpl.convertToRexNodes(SqlExprToRexConverterImpl.java:81) > >> at > >> > org.apache.flink.table.planner.calcite.SqlExprToRexConverterImpl.convertToRexNode(SqlExprToRexConverterImpl.java:73) > >> at > >> > org.apache.flink.table.planner.delegation.ParserImpl.parseSqlExpression(ParserImpl.java:93) > >> at > >> > org.apache.flink.table.api.internal.CatalogTableSchemaResolver.resolveExpressionDataType(CatalogTableSchemaResolver.java:119) > >> at > >> > org.apache.flink.table.api.internal.CatalogTableSchemaResolver.resolve(CatalogTableSchemaResolver.java:83) > >> at > >> > org.apache.flink.table.catalog.CatalogManager.resolveTableSchema(CatalogManager.java:380) > >> at > >> > org.apache.flink.table.catalog.CatalogManager.getPermanentTable(CatalogManager.java:408) > >> at > >> > org.apache.flink.table.catalog.CatalogManager.getTable(CatalogManager.java:375) > >> at > >> > org.apache.flink.table.planner.catalog.DatabaseCalciteSchema.getTable(DatabaseCalciteSchema.java:75) > >> at > >> > org.apache.calcite.jdbc.SimpleCalciteSchema.getImplicitTable(SimpleCalciteSchema.java:83) > >> at > >> org.apache.calcite.jdbc.CalciteSchema.getTable(CalciteSchema.java:289) > >> at > >> org.apache.calcite.sql.validate.EmptyScope.resolve_(EmptyScope.java:143) > >> at > >> > org.apache.calcite.sql.validate.EmptyScope.resolveTable(EmptyScope.java:99) > >> at > >> > org.apache.calcite.sql.validate.DelegatingScope.resolveTable(DelegatingScope.java:203) > >> at > >> > org.apache.calcite.sql.validate.IdentifierNamespace.resolveImpl(IdentifierNamespace.java:112) > >> at > >> > org.apache.calcite.sql.validate.IdentifierNamespace.validateImpl(IdentifierNamespace.java:184) > >> at > >> > org.apache.calcite.sql.validate.AbstractNamespace.validate(AbstractNamespace.java:84) > >> at > >> > org.apache.calcite.sql.validate.SqlValidatorImpl.validateNamespace(SqlValidatorImpl.java:1110) > >> at > >> > org.apache.calcite.sql.validate.SqlValidatorImpl.validateQuery(SqlValidatorImpl.java:1084) > >> at > >> > org.apache.calcite.sql.validate.SqlValidatorImpl.validateFrom(SqlValidatorImpl.java:3256) > >> at > >> > org.apache.calcite.sql.validate.SqlValidatorImpl.validateFrom(SqlValidatorImpl.java:3238) > >> at > >> > org.apache.calcite.sql.validate.SqlValidatorImpl.validateSelect(SqlValidatorImpl.java:3510) > >> at > >> > org.apache.calcite.sql.validate.SelectNamespace.validateImpl(SelectNamespace.java:60) > >> at > >> > org.apache.calcite.sql.validate.AbstractNamespace.validate(AbstractNamespace.java:84) > >> at > >> > org.apache.calcite.sql.validate.SqlValidatorImpl.validateNamespace(SqlValidatorImpl.java:1110) > >> at > >> > org.apache.calcite.sql.validate.SqlValidatorImpl.validateQuery(SqlValidatorImpl.java:1084) > >> at org.apache.calcite.sql.SqlSelect.validate(SqlSelect.java:232) > >> at > >> > org.apache.calcite.sql.validate.SqlValidatorImpl.validateScopedExpression(SqlValidatorImpl.java:1059) > >> at > >> > org.apache.calcite.sql.validate.SqlValidatorImpl.validate(SqlValidatorImpl.java:766) > >> at org.apache.flink.table.planner.calcite.FlinkPlannerImpl.org > >> > $apache$flink$table$planner$calcite$FlinkPlannerImpl$$validate(FlinkPlannerImpl.scala:141) > >> ... 54 more > >> > > >
