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带有 Teiid Excel 数据源的 java.nio.channels.OverlappingFileLockException

[英]java.nio.channels.OverlappingFileLockException with Teiid Excel data source

 原文  2019-12-05 11:44:16  2   3    java/ spring/ teiid

问题描述

我正在使用 Teiid 运行一个简单的 Spring Boot（项目可在此处获得）。 我在 Excel 文件数据源上创建了一个带有模型的 vdb xml 配置文件，以及一个操作来自该源的数据的视图：

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>

<vdb name="MyVDB" version="1">

    <model name="mymodel" type="PHYSICAL" visible="false">
        <property name="importer.headerRowNumber" value="1"/>
        <property name="importer.dataRowNumber" value="2"/>
        <property name="importer.excelFileName" value="my data.xlsx"/>
        <source connection-jndi-name="java:/data" name="xlsdata" translator-name="excel"/>
        <metadata type="DDL">

            CREATE FOREIGN TABLE Sheet1 (
                element_id        string OPTIONS (SEARCHABLE 'Unsearchable', "teiid_excel:CELL_NUMBER" '1'),
                parent_element_id string OPTIONS (SEARCHABLE 'Unsearchable', "teiid_excel:CELL_NUMBER" '3'),
                element_title00   string OPTIONS (SEARCHABLE 'Unsearchable', "teiid_excel:CELL_NUMBER" '2'),
                element_title01   string OPTIONS (SEARCHABLE 'Unsearchable', "teiid_excel:CELL_NUMBER" '4'),
                element_title02   string OPTIONS (SEARCHABLE 'Unsearchable', "teiid_excel:CELL_NUMBER" '5'),
                CONSTRAINT PK0 PRIMARY KEY(element_id)
            ) OPTIONS ("teiid_excel:FILE" 'my data.xlsx', "teiid_excel:FIRST_DATA_ROW_NUMBER" '2');
        </metadata>
    </model>

    <model name="data-view" type="VIRTUAL">
        <metadata type="DDL">

            CREATE VIEW my_view (
                element_id string,
                parent_element_id string,
                element_title string,
                CONSTRAINT PK0 PRIMARY KEY(element_id)
            ) OPTIONS (UPDATABLE TRUE) AS
            SELECT DISTINCT
                element_id,
                parent_element_id,
                element_title00
            FROM mymodel.Sheet1
            UNION ALL
            SELECT DISTINCT
                element_id,
                parent_element_id,
                element_title01
            FROM mymodel.Sheet1
            UNION ALL
            SELECT DISTINCT
                element_id,
                parent_element_id,
                element_title02
            FROM mymodel.Sheet1;
        </metadata>
    </model>
</vdb>

当我通过 jdbc 针对视图my_view运行SELECT查询时，我遇到了java.nio.channels.OverlappingFileLockException

我的主要应用程序：

@SpringBootApplication
public class MainApplication implements CommandLineRunner {

    @Autowired
    TeiidServer server;

    public static void main(String[] args) {
        SpringApplication.run(MainApplication.class, args).close();
    }

    @Override
    public void run(String... args) throws Exception {

        deployVdb();

        Connection c = server.getDriver().connect("jdbc:teiid:MyVDB", null);
        JDBCUtils.execute(c, "SELECT * FROM my_view", true);
    }

    private void deployVdb() throws Exception {

        ExcelExecutionFactory factory = new ExcelExecutionFactory();
        factory.start();
        factory.setSupportsDirectQueryProcedure(true);
        server.addTranslator("excel", factory);

        FileManagedConnectionFactory managedconnectionFactory = new FileManagedConnectionFactory();
        managedconnectionFactory.setParentDirectory("src/main/resources/data");
        server.addConnectionFactory("java:/data", managedconnectionFactory.createConnectionFactory());

        server.deployVDB(MainApplication.class.getClassLoader().getResourceAsStream("my-vdb.xml"));
    }
}

JDBCUtils.execute(c, "SELECT * FROM my_view", true)只是运行查询并打印结果。 您可以在此处找到JDBCUtils

2019-12-05 11:58:37.399  INFO 12324 --- [           main] it.ithrowexceptions.MainApplication      : Starting MainApplication on PC1542 with PID 12324 (C:\Users\schiavi\Desktop\my-teiid-project\target\classes started by schiavi in C:\Users\schiavi\Desktop\my-teiid-project)
2019-12-05 11:58:37.406  INFO 12324 --- [           main] it.ithrowexceptions.MainApplication      : No active profile set, falling back to default profiles: default
2019-12-05 11:58:38.978  INFO 12324 --- [           main] o.t.s.a.TeiidAutoConfiguration           : Starting Teiid Server.
2019-12-05 11:58:40.511  INFO 12324 --- [           main] org.teiid.RUNTIME.VDBLifeCycleListener   : TEIID40118 VDB spring.1.0.0 added to the repository
2019-12-05 11:58:40.520  INFO 12324 --- [           main] org.teiid.RUNTIME.VDBLifeCycleListener   : TEIID40003 VDB spring.1.0.0 is set to ACTIVE
2019-12-05 11:58:40.556  INFO 12324 --- [           main] o.s.j.d.e.EmbeddedDatabaseFactory        : Starting embedded database: url='jdbc:teiid:spring;PassthroughAuthentication=true;useCallingThread=true;autoFailover=true;waitForLoad=5000;autoCommitTxn=OFF;disableLocalTxn=true', username='null'
2019-12-05 11:58:41.589  INFO 12324 --- [           main] o.hibernate.jpa.internal.util.LogHelper  : HHH000204: Processing PersistenceUnitInfo [name: default]
2019-12-05 11:58:41.625  INFO 12324 --- [           main] org.hibernate.Version                    : HHH000412: Hibernate Core {5.4.8.Final}
2019-12-05 11:58:41.799  INFO 12324 --- [           main] o.hibernate.annotations.common.Version   : HCANN000001: Hibernate Commons Annotations {5.1.0.Final}
2019-12-05 11:58:42.063  INFO 12324 --- [           main] org.hibernate.dialect.Dialect            : HHH000400: Using dialect: org.teiid.dialect.TeiidDialect
2019-12-05 11:58:42.522  INFO 12324 --- [           main] o.h.e.t.j.p.i.JtaPlatformInitiator       : HHH000490: Using JtaPlatform implementation: [org.hibernate.engine.transaction.jta.platform.internal.NoJtaPlatform]
2019-12-05 11:58:42.534  INFO 12324 --- [           main] j.LocalContainerEntityManagerFactoryBean : Initialized JPA EntityManagerFactory for persistence unit 'default'
2019-12-05 11:58:42.967  INFO 12324 --- [           main] o.t.spring.autoconfigure.TeiidServer     : Added file to the Teiid Database
2019-12-05 11:58:42.967  INFO 12324 --- [           main] org.teiid.RUNTIME.VDBLifeCycleListener   : TEIID40120 VDB spring.1.0.0 will be removed from the repository
2019-12-05 11:58:42.968  INFO 12324 --- [           main] org.teiid.RUNTIME.VDBLifeCycleListener   : TEIID40119 VDB spring.1.0.0 removed from the repository
2019-12-05 11:58:42.991  INFO 12324 --- [           main] org.teiid.RUNTIME.VDBLifeCycleListener   : TEIID40118 VDB spring.1.0.0 added to the repository
2019-12-05 11:58:42.994  INFO 12324 --- [           main] org.teiid.RUNTIME                        : TEIID50029 VDB spring.1.0.0 model "file" metadata is currently being loaded. Start Time: 12/5/19 11:58 AM
2019-12-05 11:58:42.998  INFO 12324 --- [           main] org.teiid.RUNTIME                        : TEIID50030 VDB spring.1.0.0 model "file" metadata loaded. End Time: 12/5/19 11:58 AM
2019-12-05 11:58:42.999  INFO 12324 --- [           main] org.teiid.RUNTIME.VDBLifeCycleListener   : TEIID40003 VDB spring.1.0.0 is set to ACTIVE
2019-12-05 11:58:42.999  INFO 12324 --- [           main] o.t.s.autoconfigure.TeiidPostProcessor   : Non JDBC Datasource added to Teiid = file
2019-12-05 11:58:43.029  INFO 12324 --- [           main] it.ithrowexceptions.MainApplication      : Started MainApplication in 6.299 seconds (JVM running for 7.565)
2019-12-05 11:58:43.480  INFO 12324 --- [           main] org.teiid.RUNTIME.VDBLifeCycleListener   : TEIID40118 VDB MyVDB.1 added to the repository
2019-12-05 11:58:43.481  INFO 12324 --- [           main] org.teiid.RUNTIME                        : TEIID50029 VDB MyVDB.1 model "mymodel" metadata is currently being loaded. Start Time: 12/5/19 11:58 AM
2019-12-05 11:58:43.484  INFO 12324 --- [           main] org.teiid.RUNTIME                        : TEIID50030 VDB MyVDB.1 model "mymodel" metadata loaded. End Time: 12/5/19 11:58 AM
2019-12-05 11:58:43.485  INFO 12324 --- [           main] org.teiid.RUNTIME                        : TEIID50029 VDB MyVDB.1 model "data-view" metadata is currently being loaded. Start Time: 12/5/19 11:58 AM
2019-12-05 11:58:43.486  INFO 12324 --- [           main] org.teiid.RUNTIME                        : TEIID50030 VDB MyVDB.1 model "data-view" metadata loaded. End Time: 12/5/19 11:58 AM
2019-12-05 11:58:43.491  INFO 12324 --- [           main] org.teiid.RUNTIME.VDBLifeCycleListener   : TEIID40003 VDB MyVDB.1 is set to ACTIVE
SQL: SELECT * FROM my_view
2019-12-05 11:58:43.556 ERROR 12324 --- [ProcessorQueue2] org.teiid.CONNECTOR                      : Connector worker process failed for atomic-request=QLbbcdeqDIOx.0.7.2

java.nio.channels.OverlappingFileLockException: null
    at sun.nio.ch.SharedFileLockTable.checkList(FileLockTable.java:255) ~[na:1.8.0_231]
    at sun.nio.ch.SharedFileLockTable.add(FileLockTable.java:152) ~[na:1.8.0_231]
    at sun.nio.ch.FileChannelImpl.tryLock(FileChannelImpl.java:1107) ~[na:1.8.0_231]
    at org.teiid.file.JavaVirtualFile.openInputStream(JavaVirtualFile.java:74) ~[file-api-12.3.0.jar:12.3.0]
    at org.teiid.translator.excel.BaseExcelExecution.readXLSFile(BaseExcelExecution.java:101) ~[translator-excel-12.3.0.jar:12.3.0]
    at org.teiid.translator.excel.BaseExcelExecution.execute(BaseExcelExecution.java:97) ~[translator-excel-12.3.0.jar:12.3.0]
    at org.teiid.dqp.internal.datamgr.ConnectorWorkItem.execute(ConnectorWorkItem.java:402) ~[teiid-engine-12.3.0.jar:12.3.0]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_231]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_231]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_231]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_231]
    at org.teiid.dqp.internal.datamgr.ConnectorManager$1.invoke(ConnectorManager.java:228) [teiid-engine-12.3.0.jar:12.3.0]
    at com.sun.proxy.$Proxy70.execute(Unknown Source) [na:na]
    at org.teiid.dqp.internal.process.DataTierTupleSource.getResults(DataTierTupleSource.java:302) [teiid-engine-12.3.0.jar:12.3.0]
    at org.teiid.dqp.internal.process.DataTierTupleSource$1.call(DataTierTupleSource.java:108) [teiid-engine-12.3.0.jar:12.3.0]
    at org.teiid.dqp.internal.process.DataTierTupleSource$1.call(DataTierTupleSource.java:104) [teiid-engine-12.3.0.jar:12.3.0]
    at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_231]
    at org.teiid.dqp.internal.process.FutureWork.run(FutureWork.java:59) [teiid-engine-12.3.0.jar:12.3.0]
    at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:281) [teiid-engine-12.3.0.jar:12.3.0]
    at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:124) [teiid-engine-12.3.0.jar:12.3.0]
    at org.teiid.dqp.internal.process.ThreadReuseExecutor$2.run(ThreadReuseExecutor.java:212) [teiid-engine-12.3.0.jar:12.3.0]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_231]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_231]
    at java.lang.Thread.run(Thread.java:748) [na:1.8.0_231]

2019-12-05 11:58:43.559 ERROR 12324 --- [ProcessorQueue0] org.teiid.CONNECTOR                      : Connector worker process failed for atomic-request=QLbbcdeqDIOx.0.3.0

java.nio.channels.OverlappingFileLockException: null
    at sun.nio.ch.SharedFileLockTable.checkList(FileLockTable.java:255) ~[na:1.8.0_231]
    at sun.nio.ch.SharedFileLockTable.add(FileLockTable.java:152) ~[na:1.8.0_231]
    at sun.nio.ch.FileChannelImpl.tryLock(FileChannelImpl.java:1107) ~[na:1.8.0_231]
    at org.teiid.file.JavaVirtualFile.openInputStream(JavaVirtualFile.java:74) ~[file-api-12.3.0.jar:12.3.0]
    at org.teiid.translator.excel.BaseExcelExecution.readXLSFile(BaseExcelExecution.java:101) ~[translator-excel-12.3.0.jar:12.3.0]
    at org.teiid.translator.excel.BaseExcelExecution.execute(BaseExcelExecution.java:97) ~[translator-excel-12.3.0.jar:12.3.0]
    at org.teiid.dqp.internal.datamgr.ConnectorWorkItem.execute(ConnectorWorkItem.java:402) ~[teiid-engine-12.3.0.jar:12.3.0]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_231]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_231]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_231]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_231]
    at org.teiid.dqp.internal.datamgr.ConnectorManager$1.invoke(ConnectorManager.java:228) [teiid-engine-12.3.0.jar:12.3.0]
    at com.sun.proxy.$Proxy70.execute(Unknown Source) [na:na]
    at org.teiid.dqp.internal.process.DataTierTupleSource.getResults(DataTierTupleSource.java:302) [teiid-engine-12.3.0.jar:12.3.0]
    at org.teiid.dqp.internal.process.DataTierTupleSource$1.call(DataTierTupleSource.java:108) [teiid-engine-12.3.0.jar:12.3.0]
    at org.teiid.dqp.internal.process.DataTierTupleSource$1.call(DataTierTupleSource.java:104) [teiid-engine-12.3.0.jar:12.3.0]
    at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_231]
    at org.teiid.dqp.internal.process.FutureWork.run(FutureWork.java:59) [teiid-engine-12.3.0.jar:12.3.0]
    at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:281) [teiid-engine-12.3.0.jar:12.3.0]
    at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:124) [teiid-engine-12.3.0.jar:12.3.0]
    at org.teiid.dqp.internal.process.ThreadReuseExecutor$2.run(ThreadReuseExecutor.java:212) [teiid-engine-12.3.0.jar:12.3.0]
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_231]
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_231]
    at java.lang.Thread.run(Thread.java:748) [na:1.8.0_231]

2019-12-05 11:58:43.563  WARN 12324 --- [           main] org.teiid.PROCESSOR                      : TEIID30020 Processing exception for request QLbbcdeqDIOx.0 'TEIID30504 xlsdata: null'. Originally TeiidProcessingException FileLockTable.java:255. Enable more detailed logging to see the entire stacktrace.
org.teiid.jdbc.TeiidSQLException: TEIID30504 xlsdata: null
    at org.teiid.jdbc.TeiidSQLException.create(TeiidSQLException.java:131)
    at org.teiid.jdbc.TeiidSQLException.create(TeiidSQLException.java:67)
    at org.teiid.jdbc.StatementImpl.postReceiveResults(StatementImpl.java:783)
    at org.teiid.jdbc.StatementImpl.access$100(StatementImpl.java:62)
    at org.teiid.jdbc.StatementImpl$2.onCompletion(StatementImpl.java:581)
    at org.teiid.client.util.ResultsFuture.addCompletionListener(ResultsFuture.java:144)
    at org.teiid.jdbc.StatementImpl.executeSql(StatementImpl.java:577)
    at org.teiid.jdbc.StatementImpl.execute(StatementImpl.java:1119)
    at org.teiid.jdbc.StatementImpl.execute(StatementImpl.java:336)
    at it.ithrowexceptions.JDBCUtils.execute(JDBCUtils.java:59)
    at it.ithrowexceptions.MainApplication.run(MainApplication.java:29)
    at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:784)
    at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:768)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:322)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1226)
    at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215)
    at it.ithrowexceptions.MainApplication.main(MainApplication.java:20)
Caused by: org.teiid.core.TeiidProcessingException: TEIID30504 xlsdata: null
    at org.teiid.dqp.internal.process.DataTierTupleSource.exceptionOccurred(DataTierTupleSource.java:397)
    at org.teiid.dqp.internal.process.DataTierTupleSource.nextTuple(DataTierTupleSource.java:157)
    at org.teiid.query.processor.relational.AccessNode.nextBatchDirect(AccessNode.java:401)
    at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:277)
    at org.teiid.query.processor.relational.DupRemoveNode.nextBatchDirect(DupRemoveNode.java:58)
    at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:277)
    at org.teiid.query.processor.relational.UnionAllNode.nextBatchDirectInternal(UnionAllNode.java:165)
    at org.teiid.query.processor.relational.UnionAllNode.nextBatchDirect(UnionAllNode.java:138)
    at org.teiid.query.processor.relational.RelationalNode.nextBatch(RelationalNode.java:277)
    at org.teiid.query.processor.relational.RelationalPlan.nextBatch(RelationalPlan.java:139)
    at org.teiid.query.processor.QueryProcessor.nextBatchDirect(QueryProcessor.java:147)
    at org.teiid.query.processor.QueryProcessor.nextBatch(QueryProcessor.java:110)
    at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:160)
    at org.teiid.query.processor.BatchCollector.collectTuples(BatchCollector.java:142)
    at org.teiid.dqp.internal.process.RequestWorkItem.processMore(RequestWorkItem.java:492)
    at org.teiid.dqp.internal.process.RequestWorkItem.process(RequestWorkItem.java:362)
    at org.teiid.dqp.internal.process.AbstractWorkItem.run(AbstractWorkItem.java:43)
    at org.teiid.dqp.internal.process.RequestWorkItem.run(RequestWorkItem.java:285)
    at org.teiid.dqp.internal.process.DQPCore.executeRequest(DQPCore.java:361)
    at org.teiid.dqp.internal.process.DQPCore.executeRequest(DQPCore.java:276)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.teiid.logging.LogManager$LoggingProxy.invoke(LogManager.java:119)
    at org.teiid.transport.SessionCheckingProxy.invoke(SessionCheckingProxy.java:60)
    at com.sun.proxy.$Proxy48.executeRequest(Unknown Source)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.teiid.transport.LocalServerConnection$1$1.call(LocalServerConnection.java:212)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:281)
    at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:265)
    at org.teiid.transport.LocalServerConnection$1.invoke(LocalServerConnection.java:210)
    at com.sun.proxy.$Proxy48.executeRequest(Unknown Source)
    at org.teiid.jdbc.StatementImpl.execute(StatementImpl.java:745)
    at org.teiid.jdbc.StatementImpl.executeSql(StatementImpl.java:575)
    ... 10 more
Caused by: org.teiid.translator.TranslatorException
    at org.teiid.dqp.internal.datamgr.ConnectorWorkItem.handleError(ConnectorWorkItem.java:342)
    at org.teiid.dqp.internal.datamgr.ConnectorWorkItem.execute(ConnectorWorkItem.java:405)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.teiid.dqp.internal.datamgr.ConnectorManager$1.invoke(ConnectorManager.java:228)
    at com.sun.proxy.$Proxy70.execute(Unknown Source)
    at org.teiid.dqp.internal.process.DataTierTupleSource.getResults(DataTierTupleSource.java:302)
    at org.teiid.dqp.internal.process.DataTierTupleSource$1.call(DataTierTupleSource.java:108)
    at org.teiid.dqp.internal.process.DataTierTupleSource$1.call(DataTierTupleSource.java:104)
    at java.util.concurrent.FutureTask.run(FutureTask.java:266)
    at org.teiid.dqp.internal.process.FutureWork.run(FutureWork.java:59)
    at org.teiid.dqp.internal.process.DQPWorkContext.runInContext(DQPWorkContext.java:281)
    at org.teiid.dqp.internal.process.ThreadReuseExecutor$RunnableWrapper.run(ThreadReuseExecutor.java:124)
    at org.teiid.dqp.internal.process.ThreadReuseExecutor$2.run(ThreadReuseExecutor.java:212)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)
Caused by: java.nio.channels.OverlappingFileLockException
    at sun.nio.ch.SharedFileLockTable.checkList(FileLockTable.java:255)
    at sun.nio.ch.SharedFileLockTable.add(FileLockTable.java:152)
    at sun.nio.ch.FileChannelImpl.tryLock(FileChannelImpl.java:1107)
    at org.teiid.file.JavaVirtualFile.openInputStream(JavaVirtualFile.java:74)
    at org.teiid.translator.excel.BaseExcelExecution.readXLSFile(BaseExcelExecution.java:101)
    at org.teiid.translator.excel.BaseExcelExecution.execute(BaseExcelExecution.java:97)
    at org.teiid.dqp.internal.datamgr.ConnectorWorkItem.execute(ConnectorWorkItem.java:402)
    ... 17 more

如果我声明视图my_view没有UNION ALL （只有一个SELECT ），查询将顺利运行。

为什么会发生这种情况？ 我应该如何实现 vdb？

3 个解决方案

解决方案1
 0  2019-12-07 01:27:34

为什么不使用 Teiid Spring Starter 提供的方法来使用 Teiid 读取 Excel 源代码。 请参阅此处的示例 [1]。

但是，如果您希望将 VDB 与 Spring Boot Starter 一起使用，您也可以这样做。 您需要使用来自 Teiid Spring Boot 的依赖项。

[1] https://github.com/teiid/teiid-spring-boot/tree/master/samples/excel

解决方案2
 0 已采纳  2019-12-10 08:44:27

我通过在 Excel 数据源上添加物化视图来规避这个问题。 vdb 现在实现为：

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>

<vdb name="MyVDB" version="1">

    <model name="mymodel" type="PHYSICAL" visible="true">
        <property name="importer.headerRowNumber" value="1"/>
        <property name="importer.dataRowNumber" value="2"/>
        <property name="importer.excelFileName" value="my data.xlsx"/>
        <source connection-jndi-name="java:/data" name="xlsdata" translator-name="excel"/>
        <metadata type="DDL">

            CREATE FOREIGN TABLE Sheet1 (
                element_id        string OPTIONS (SEARCHABLE 'Unsearchable', "teiid_excel:CELL_NUMBER" '1'),
                parent_element_id string OPTIONS (SEARCHABLE 'Unsearchable', "teiid_excel:CELL_NUMBER" '3'),
                element_title00   string OPTIONS (SEARCHABLE 'Unsearchable', "teiid_excel:CELL_NUMBER" '2'),
                element_title01   string OPTIONS (SEARCHABLE 'Unsearchable', "teiid_excel:CELL_NUMBER" '4'),
                element_title02   string OPTIONS (SEARCHABLE 'Unsearchable', "teiid_excel:CELL_NUMBER" '5'),
                CONSTRAINT PK0 PRIMARY KEY(element_id)
            ) OPTIONS ("teiid_excel:FILE" 'my data.xlsx', "teiid_excel:FIRST_DATA_ROW_NUMBER" '2');
        </metadata>
    </model>

    <model name="data-view" type="VIRTUAL">
        <metadata type="DDL">

            CREATE VIEW data_view (
                element_id        string PRIMARY KEY,
                parent_element_id string,
                element_title00   string,
                element_title01   string,
                element_title02   string
            ) OPTIONS (MATERIALIZED TRUE) AS
            SELECT
                element_id,
                parent_element_id,
                element_title00,
                element_title01,
                element_title02
            FROM mymodel.Sheet1;
        </metadata>
    </model>

    <model name="my-view" type="VIRTUAL">
        <metadata type="DDL">

            CREATE VIEW my_view (
                element_id string,
                parent_element_id string,
                element_title string,
                CONSTRAINT PK0 PRIMARY KEY(element_id)
            ) OPTIONS (UPDATABLE TRUE) AS
            SELECT DISTINCT
                element_id,
                parent_element_id,
                element_title00
            FROM data_view
            WHERE element_title00 IS NOT NULL AND element_title00 NOT LIKE '' AND (element_title01 IS NULL OR element_title01 LIKE '')
            UNION ALL
            SELECT DISTINCT
                element_id,
                parent_element_id,
                element_title01
            FROM data_view
            WHERE (element_title01 IS NOT NULL AND element_title01 NOT LIKE '') AND (element_title02 IS NULL OR element_title02 LIKE '')
            UNION ALL
            SELECT DISTINCT
                element_id,
                parent_element_id,
                element_title02
            FROM data_view
            WHERE (element_title02 IS NOT NULL AND element_title02 NOT LIKE '');
        </metadata>
    </model>
</vdb>

解决方案3
 0  2020-01-13 18:07:46

此异常被捕获为 Teiid 问题： https ://issues.redhat.com/browse/TEIID-5877

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