duongkame opened a new pull request, #4734:
URL: https://github.com/apache/ozone/pull/4734
## What changes were proposed in this pull request?
OM snapshot installing fails with:
```
2023-05-18 09:35:39,485 ERROR org.apache.hadoop.ozone.om.OzoneManager:
Terminating with exit status 1: Failed to reload OM state and instantiate
services.
org.apache.hadoop.metrics2.MetricsException: Metrics source
OMPerformanceMetrics already exists!
at
org.apache.hadoop.metrics2.lib.DefaultMetricsSystem.newSourceName(DefaultMetricsSystem.java:152)
at
org.apache.hadoop.metrics2.lib.DefaultMetricsSystem.sourceName(DefaultMetricsSystem.java:125)
at
org.apache.hadoop.metrics2.impl.MetricsSystemImpl.register(MetricsSystemImpl.java:229)
at
org.apache.hadoop.ozone.om.OMPerformanceMetrics.register(OMPerformanceMetrics.java:33)
at
org.apache.hadoop.ozone.om.OzoneManager.instantiateServices(OzoneManager.java:779)
at
org.apache.hadoop.ozone.om.OzoneManager.reloadOMState(OzoneManager.java:3808)
at
org.apache.hadoop.ozone.om.OzoneManager.installCheckpoint(OzoneManager.java:3663)
at
org.apache.hadoop.ozone.om.OzoneManager.installCheckpoint(OzoneManager.java:3570)
at
org.apache.hadoop.ozone.om.OzoneManager.installSnapshotFromLeader(OzoneManager.java:3547)
at
org.apache.hadoop.ozone.om.ratis.OzoneManagerStateMachine.lambda$6(OzoneManagerStateMachine.java:478)
at
java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1700)
at
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
```
## What is the link to the Apache JIRA
https://issues.apache.org/jira/browse/HDDS-8647
## How was this patch tested?
Need to add an integration test for OM snapshot installing.
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