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https://issues.apache.org/jira/browse/FLINK-4824?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15594650#comment-15594650
]
ASF GitHub Bot commented on FLINK-4824:
---------------------------------------
Github user mxm commented on a diff in the pull request:
https://github.com/apache/flink/pull/2662#discussion_r84448442
--- Diff:
flink-clients/src/main/java/org/apache/flink/client/program/ProgramParametrizationException.java
---
@@ -0,0 +1,46 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.flink.client.program;
+
+/**
+ * Exception used to indicate that there is an error in the
parametrization of a Flink program.
+ */
+public class ProgramParametrizationException extends RuntimeException {
+ /**
+ * Serial version UID for serialization interoperability.
+ */
+ private static final long serialVersionUID = 909054589029890262L;
+
+ /**
+ * Creates a <tt>ProgramParametrizationException</tt>.
+ */
+ public ProgramParametrizationException() {
+ super();
--- End diff --
I think we should not even allow to skip the message here. This will
simplify the code further and display some message for the user.
> CliFrontend shows misleading error message when main() method returns before
> env.execute()
> ------------------------------------------------------------------------------------------
>
> Key: FLINK-4824
> URL: https://issues.apache.org/jira/browse/FLINK-4824
> Project: Flink
> Issue Type: Bug
> Components: Client
> Affects Versions: 1.2.0
> Reporter: Robert Metzger
> Assignee: Greg Hogan
>
> While testing Flink by running the
> {{./examples/streaming/SocketWindowWordCount.jar}} example, I got the
> following error message:
> {code}
> ./bin/flink run ./examples/streaming/SocketWindowWordCount.jar
> Cluster configuration: Standalone cluster with JobManager at /127.0.0.1:6123
> Using address 127.0.0.1:6123 to connect to JobManager.
> JobManager web interface address http://127.0.0.1:8081
> Starting execution of program
> No port specified. Please run 'SocketWindowWordCount --port <port>', where
> port is the address of the text server
> To start a simple text server, run 'netcat -l <port>' and type the input text
> into the command line
> ------------------------------------------------------------
> The program finished with the following exception:
> org.apache.flink.client.program.ProgramInvocationException: The program
> didn't contain Flink jobs. Perhaps you forgot to call execute() on the
> execution environment.
> at
> org.apache.flink.client.program.ClusterClient.run(ClusterClient.java:324)
> at
> org.apache.flink.client.CliFrontend.executeProgram(CliFrontend.java:774)
> at org.apache.flink.client.CliFrontend.run(CliFrontend.java:250)
> at
> org.apache.flink.client.CliFrontend.parseParameters(CliFrontend.java:985)
> at org.apache.flink.client.CliFrontend$2.run(CliFrontend.java:1032)
> at org.apache.flink.client.CliFrontend$2.run(CliFrontend.java:1029)
> at
> org.apache.flink.runtime.security.SecurityContext$1.run(SecurityContext.java:82)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:422)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1548)
> at
> org.apache.flink.runtime.security.SecurityContext.runSecured(SecurityContext.java:79)
> at org.apache.flink.client.CliFrontend.main(CliFrontend.java:1029)
> {code}
> I think the error message is misleading, because I tried executing a valid
> Flink job.
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