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Posted to commits@pulsar.apache.org by GitBox <gi...@apache.org> on 2022/07/07 20:30:52 UTC
[GitHub] [pulsar] michaeljmarshall opened a new issue, #16454: DistributedIdGenerator should retry on BadVersion error
michaeljmarshall opened a new issue, #16454:
URL: https://github.com/apache/pulsar/issues/16454
**Describe the bug**
When starting several brokers concurrently, there is a risk that one will fail with the following error:
```
2022-06-27T16:23:42,169+0000 [main] ERROR org.apache.pulsar.broker.PulsarService - Failed to start Pulsar service: org.apache.pulsar.metadata.api.MetadataStoreException$BadVersionException: org.apache.zookeeper.KeeperException$BadVersionException: KeeperErrorCode = BadVersion for /counters/producer-name
java.util.concurrent.ExecutionException: org.apache.pulsar.metadata.api.MetadataStoreException$BadVersionException: org.apache.zookeeper.KeeperException$BadVersionException: KeeperErrorCode = BadVersion for /counters/producer-name
at java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:395) ~[?:?]
at java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1999) ~[?:?]
at org.apache.pulsar.broker.service.DistributedIdGenerator.<init>(DistributedIdGenerator.java:54) ~[com.datastax.oss-pulsar-broker-2.10.0.6.jar:2.10.0.6]
at org.apache.pulsar.broker.service.BrokerService.start(BrokerService.java:460) ~[com.datastax.oss-pulsar-broker-2.10.0.6.jar:2.10.0.
```
The key problem is `org.apache.pulsar.metadata.api.MetadataStoreException$BadVersionException: org.apache.zookeeper.KeeperException$BadVersionException: KeeperErrorCode = BadVersion for /counters/producer-name`, and in looking at the `/counters/producer-name` initialization, I can see that it does not handle retries in the event of a `BadVersion` error.
**Expected behavior**
Because it is common to start several brokers at the same time, I think the broker should retry when it attempts to get the producer name counter.
**Additional context**
This is on the DataStax build of pulsar 2.10. plus some commits. In looking at the code in `DistributedIdGenerator`, there are no relevant differences.
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[GitHub] [pulsar] Technoboy- closed issue #16454: DistributedIdGenerator should retry on BadVersion error
Posted by GitBox <gi...@apache.org>.
Technoboy- closed issue #16454: DistributedIdGenerator should retry on BadVersion error
URL: https://github.com/apache/pulsar/issues/16454
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