tomasbanet commented on PR #2882:
URL: https://github.com/apache/hadoop/pull/2882#issuecomment-1881386023
Just upgraded our cluster from 3.1.x to 3.3.x, and seeing this log line
printed hundreds of times per minute:
```
INFO org.apache.hadoop.hdfs.server.blockmanagement.BlockPlacementPolicy: Not
enough replicas was chosen. Reason:{NO_REQUIRED_STORAGE_TYPE=1}
```
We have a single rack topology, with replication factor of 3.
For now working around this issue by setting log level of
BlockPlacementPolicy to WARN in log4j.properties:
```
log4j.logger.org.apache.hadoop.hdfs.server.blockmanagement.BlockPlacementPolicy=WARN
```
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