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Posted to issues@fluss.apache.org by "swuferhong (via GitHub)" <gi...@apache.org> on 2025/11/30 05:39:17 UTC

[I] NPE throw when get bucket count from MetadataUpdater [fluss]

swuferhong opened a new issue, #2053:
URL: https://github.com/apache/fluss/issues/2053

   ### Search before asking
   
   - [x] I searched in the [issues](https://github.com/apache/fluss/issues) and found nothing similar.
   
   
   ### Fluss version
   
   0.8.0 (latest release)
   
   ### Please describe the bug 🐞
   
   The error is as follow:
   
   ```
   2025-11-30 13:21:54
   java.io.IOException: Failed to send record to table fluss.dwd_xxx. Writer state: running
   	at org.apache.fluss.flink.sink.writer.FlinkSinkWriter.write(FlinkSinkWriter.java:159)
   	at org.apache.flink.streaming.runtime.operators.sink.SinkWriterOperator.processElement(SinkWriterOperator.java:182)
   	at org.apache.flink.streaming.runtime.tasks.OneInputStreamTask$StreamTaskNetworkOutput.emitRecord(OneInputStreamTask.java:245)
   	at org.apache.flink.streaming.runtime.io.AbstractStreamTaskNetworkInput.processElement(AbstractStreamTaskNetworkInput.java:217)
   	at org.apache.flink.streaming.runtime.io.AbstractStreamTaskNetworkInput.emitNext(AbstractStreamTaskNetworkInput.java:169)
   	at org.apache.flink.streaming.runtime.io.StreamOneInputProcessor.processInput(StreamOneInputProcessor.java:68)
   	at org.apache.flink.streaming.runtime.tasks.StreamTask.processInput(StreamTask.java:616)
   	at org.apache.flink.streaming.runtime.tasks.mailbox.MailboxProcessor.runMailboxLoop(MailboxProcessor.java:231)
   	at org.apache.flink.streaming.runtime.tasks.StreamTask.runMailboxLoop(StreamTask.java:1071)
   	at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:1020)
   	at org.apache.flink.runtime.taskmanager.Task.runWithSystemExitMonitoring(Task.java:968)
   	at org.apache.flink.runtime.taskmanager.Task.restoreAndInvoke(Task.java:947)
   	at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:754)
   	at org.apache.flink.runtime.taskmanager.Task.run(Task.java:569)
   	at java.lang.Thread.run(Thread.java:879)
   Caused by: org.apache.fluss.exception.FlussRuntimeException: Failed to send record to table fluss.dwd_xxx. Writer state: running
   	at org.apache.fluss.client.write.WriterClient.doSend(WriterClient.java:216)
   	at org.apache.fluss.client.write.WriterClient.send(WriterClient.java:139)
   	at org.apache.fluss.client.table.writer.AbstractTableWriter.send(AbstractTableWriter.java:66)
   	at org.apache.fluss.client.table.writer.AppendWriterImpl.append(AppendWriterImpl.java:87)
   	at org.apache.fluss.flink.sink.writer.AppendSinkWriter.writeRow(AppendSinkWriter.java:62)
   	at org.apache.fluss.flink.sink.writer.FlinkSinkWriter.write(FlinkSinkWriter.java:143)
   	... 14 more
   Caused by: java.lang.NullPointerException
   	at org.apache.fluss.cluster.Cluster.getBucketCount(Cluster.java:177)
   	at org.apache.fluss.client.write.StickyBucketAssigner.nextBucket(StickyBucketAssigner.java:76)
   	at org.apache.fluss.client.write.StickyBucketAssigner.assignBucket(StickyBucketAssigner.java:50)
   	at org.apache.fluss.client.write.DynamicBucketAssigner.assignBucket(DynamicBucketAssigner.java:32)
   	at org.apache.fluss.client.write.StickyBucketAssigner.assignBucket(StickyBucketAssigner.java:34)
   	at org.apache.fluss.client.write.WriterClient.doSend(WriterClient.java:189)
   	... 19 more
   
   ```
   
   ### Solution
   
   _No response_
   
   ### Are you willing to submit a PR?
   
   - [ ] I'm willing to submit a PR!


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Re: [I] NPE throw when get bucket count from MetadataUpdater [fluss]

Posted by "wuchong (via GitHub)" <gi...@apache.org>.
wuchong closed issue #2053: NPE throw when get bucket count from MetadataUpdater
URL: https://github.com/apache/fluss/issues/2053


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