vinlee19 opened a new pull request, #382:
URL: https://github.com/apache/doris-flink-connector/pull/382
# Proposed changes
When dealing with multiple databases in MySQL, it's common to have tables
with identical schemas spread across different databases. If you try to
synchronize these databases to Doris using the provided shell script, you might
encounter the following error:
```bash
rg.apache.flink.client.program.ProgramInvocationException: The main method
caused an error: Hash collision on user-specified ID "customer_1". Most likely
cause is a non-unique ID. Please check that all IDs specified via `uid(String)`
are unique.
at
org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:372)
at
org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:222)
at
org.apache.flink.client.ClientUtils.executeProgram(ClientUtils.java:105)
at
org.apache.flink.client.cli.CliFrontend.executeProgram(CliFrontend.java:851)
at org.apache.flink.client.cli.CliFrontend.run(CliFrontend.java:245)
at
org.apache.flink.client.cli.CliFrontend.parseAndRun(CliFrontend.java:1095)
at
org.apache.flink.client.cli.CliFrontend.lambda$mainInternal$9(CliFrontend.java:1189)
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:1899)
at
org.apache.flink.runtime.security.contexts.HadoopSecurityContext.runSecured(HadoopSecurityContext.java:41)
at
org.apache.flink.client.cli.CliFrontend.mainInternal(CliFrontend.java:1189)
at
org.apache.flink.client.cli.CliFrontend.main(CliFrontend.java:1157)
Caused by: java.lang.IllegalArgumentException: Hash collision on
user-specified ID "customer_1". Most likely cause is a non-unique ID. Please
check that all IDs specified via `uid(String)` are unique.
at
org.apache.flink.streaming.api.graph.StreamGraphHasherV2.generateNodeHash(StreamGraphHasherV2.java:185)
at
org.apache.flink.streaming.api.graph.StreamGraphHasherV2.traverseStreamGraphAndGenerateHashes(StreamGraphHasherV2.java:110)
at
org.apache.flink.streaming.api.graph.StreamingJobGraphGenerator.createJobGraph(StreamingJobGraphGenerator.java:246)
at
org.apache.flink.streaming.api.graph.StreamingJobGraphGenerator.createJobGraph(StreamingJobGraphGenerator.java:160)
at
org.apache.flink.streaming.api.graph.StreamGraph.getJobGraph(StreamGraph.java:1024)
at
org.apache.flink.client.StreamGraphTranslator.translateToJobGraph(StreamGraphTranslator.java:56)
at
org.apache.flink.client.FlinkPipelineTranslationUtil.getJobGraph(FlinkPipelineTranslationUtil.java:43)
at
org.apache.flink.client.deployment.executors.PipelineExecutorUtils.getJobGraph(PipelineExecutorUtils.java:61)
at
org.apache.flink.client.deployment.executors.AbstractSessionClusterExecutor.execute(AbstractSessionClusterExecutor.java:72)
at
org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.executeAsync(StreamExecutionEnvironment.java:2197)
at
org.apache.flink.client.program.StreamContextEnvironment.executeAsync(StreamContextEnvironment.java:189)
at
org.apache.flink.client.program.StreamContextEnvironment.execute(StreamContextEnvironment.java:118)
at
org.apache.flink.streaming.api.environment.StreamExecutionEnvironment.execute(StreamExecutionEnvironment.java:2058)
at
org.apache.doris.flink.tools.cdc.CdcTools.syncDatabase(CdcTools.java:151)
at
org.apache.doris.flink.tools.cdc.CdcTools.createMySQLSyncDatabase(CdcTools.java:74)
at org.apache.doris.flink.tools.cdc.CdcTools.main(CdcTools.java:51)
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.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:355)
```
This PR aims to address this issue.
Issue Number: close #xxx
## Problem Summary:
Describe the overview of changes.
## Checklist(Required)
1. Does it affect the original behavior: (Yes/No/I Don't know)
3. Has unit tests been added: (Yes/No/No Need)
4. Has document been added or modified: (Yes/No/No Need)
5. Does it need to update dependencies: (Yes/No)
6. Are there any changes that cannot be rolled back: (Yes/No)
## Further comments
If this is a relatively large or complex change, kick off the discussion at
[[email protected]](mailto:[email protected]) by explaining why you
chose the solution you did and what alternatives you considered, etc...
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