duongkame commented on PR #3921:
URL: https://github.com/apache/ozone/pull/3921#issuecomment-1301101845
> Thanks @duongkame for the fix. The change make sense. In addition, Did you
check the dump of DN? Just make sure if there are still many LRUCache objects.
Yes, I did. Please see below:
```
duong@fubar ~ % jmap -histo:live 81172 | grep Managed
144: 104 7488
org.apache.hadoop.hdds.utils.db.managed.ManagedColumnFamilyOptions
388: 4 1056
org.apache.ratis.thirdparty.io.grpc.internal.ManagedChannelImpl
400: 21 1008
org.apache.hadoop.hdds.utils.db.managed.ManagedDBOptions
548: 4 544
org.apache.hadoop.hdds.utils.db.managed.ManagedBlockBasedTableConfig
572: 21 504
org.apache.hadoop.hdds.utils.db.managed.ManagedCheckpoint
573: 21 504
org.apache.hadoop.hdds.utils.db.managed.ManagedRocksDB
574: 21 504
org.apache.hadoop.hdds.utils.db.managed.ManagedWriteOptions
1340: 4 96
org.apache.hadoop.hdds.utils.db.managed.ManagedBloomFilter
1341: 4 96
org.apache.hadoop.hdds.utils.db.managed.ManagedLRUCache
1398: 4 96
org.apache.ratis.thirdparty.io.grpc.internal.ManagedChannelImpl$1ChannelCallTracerFactory
```
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