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Posted to issues@flink.apache.org by "Leonard Xu (Jira)" <ji...@apache.org> on 2020/07/01 14:36:00 UTC

[jira] [Resolved] (FLINK-17045) If multiple views are based on tables not defined in the yaml config file, dropping one of the views will throw exception

     [ https://issues.apache.org/jira/browse/FLINK-17045?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Leonard Xu resolved FLINK-17045.
--------------------------------
    Fix Version/s: 1.11.0
       Resolution: Fixed

> If multiple views are based on tables not defined in the yaml config file, dropping one of the views will throw exception
> -------------------------------------------------------------------------------------------------------------------------
>
>                 Key: FLINK-17045
>                 URL: https://issues.apache.org/jira/browse/FLINK-17045
>             Project: Flink
>          Issue Type: Bug
>          Components: Table SQL / Client
>    Affects Versions: 1.11.0
>            Reporter: Caizhi Weng
>            Priority: Major
>             Fix For: 1.11.0
>
>
> Add the following test in {{LocalExecutorITCase}} and run it
> {code:java}
> @Test
> public void testBuggyViews() throws Exception {
>     final Executor executor = createDefaultExecutor(clusterClient);
>     final SessionContext session = new SessionContext("test-session", new Environment());
>     String sessionId = executor.openSession(session);
>     final String ddlTemplate = "create table %s(\n" +
>         "  a int,\n" +
>         "  b bigint,\n" +
>         "  c varchar\n" +
>         ") with (\n" +
>         "  'connector.type'='filesystem',\n" +
>         "  'format.type'='csv',\n" +
>         "  'connector.path'='xxx'\n" +
>         ")\n";
>     executor.useCatalog(sessionId, "catalog1");
>     executor.createTable(sessionId, String.format(ddlTemplate, "MyTable1"));
>     executor.createTable(sessionId, String.format(ddlTemplate, "MyTable2"));
>     executor.addView(sessionId, "AdditionalView1", "SELECT * FROM MyTable1");
>     executor.addView(sessionId, "AdditionalView2", "SELECT * FROM MyTable2");
>     // exception thrown here
>     executor.removeView(sessionId, "AdditionalView1");
>     executor.closeSession(sessionId);
> }
> {code}
> The following exception is thrown
> {code:java}
> org.apache.flink.table.client.gateway.SqlExecutionException: Could not create execution context.
> 	at org.apache.flink.table.client.gateway.local.ExecutionContext$Builder.build(ExecutionContext.java:767)
> 	at org.apache.flink.table.client.gateway.local.LocalExecutor.removeView(LocalExecutor.java:320)
> 	at org.apache.flink.table.client.gateway.local.LocalExecutorITCase.testBuggyViews(LocalExecutorITCase.java:163)
> 	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.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
> 	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
> 	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
> 	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
> 	at org.junit.rules.ExpectedException$ExpectedExceptionStatement.evaluate(ExpectedException.java:239)
> 	at org.junit.rules.TestWatcher$1.evaluate(TestWatcher.java:55)
> 	at org.junit.rules.RunRules.evaluate(RunRules.java:20)
> 	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
> 	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
> 	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
> 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
> 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
> 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
> 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
> 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
> 	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
> 	at org.junit.runners.Suite.runChild(Suite.java:128)
> 	at org.junit.runners.Suite.runChild(Suite.java:27)
> 	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
> 	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
> 	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
> 	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
> 	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
> 	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
> 	at org.junit.rules.ExternalResource$1.evaluate(ExternalResource.java:48)
> 	at org.junit.rules.ExternalResource$1.evaluate(ExternalResource.java:48)
> 	at org.junit.rules.RunRules.evaluate(RunRules.java:20)
> 	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
> 	at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
> 	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
> 	at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
> 	at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
> 	at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)
> Caused by: org.apache.flink.table.client.gateway.SqlExecutionException: Invalid view 'AdditionalView2' with query:
> SELECT * FROM MyTable2
> Cause: SQL validation failed. From line 1, column 15 to line 1, column 22: Object 'MyTable2' not found
> 	at org.apache.flink.table.client.gateway.local.ExecutionContext.registerView(ExecutionContext.java:682)
> 	at org.apache.flink.table.client.gateway.local.ExecutionContext.lambda$initializeCatalogs$9(ExecutionContext.java:602)
> 	at java.util.LinkedHashMap.forEach(LinkedHashMap.java:684)
> 	at org.apache.flink.table.client.gateway.local.ExecutionContext.initializeCatalogs(ExecutionContext.java:597)
> 	at org.apache.flink.table.client.gateway.local.ExecutionContext.initializeTableEnvironment(ExecutionContext.java:508)
> 	at org.apache.flink.table.client.gateway.local.ExecutionContext.<init>(ExecutionContext.java:164)
> 	at org.apache.flink.table.client.gateway.local.ExecutionContext.<init>(ExecutionContext.java:121)
> 	at org.apache.flink.table.client.gateway.local.ExecutionContext$Builder.build(ExecutionContext.java:756)
> 	... 39 more
> {code}
> This is caused by not adding the {{SessionState}} in {{LocalExecutor#removeView}} when creating the new builder.
> {code:java}
> if (newEnv.getTables().remove(name) != null) {
>    // Renew the ExecutionContext.
>    this.contextMap.put(
>          sessionId,
>          createExecutionContextBuilder(context.getOriginalSessionContext())
>                // should be: .env(newEnv).sessionState(getExecutionContext(sessionId).getSessionState()).build());
>                .env(newEnv).build());
> }{code}



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