lichuan6 opened a new issue #9271:
URL: https://github.com/apache/pulsar/issues/9271
**Describe the bug**
I have a topic with `storageSize` equals to`194020994`
`pulsar-admin topics stats public/default/pulsar`
```json
{
"msgRateIn" : 0.0,
"msgThroughputIn" : 0.0,
"msgRateOut" : 0.0,
"msgThroughputOut" : 0.0,
"bytesInCounter" : 194020994,
"msgInCounter" : 2460600,
"bytesOutCounter" : 0,
"msgOutCounter" : 0,
"averageMsgSize" : 0.0,
"msgChunkPublished" : false,
"storageSize" : 194020994,
"backlogSize" : 8473994,
"publishers" : [ ],
"subscriptions" : { },
"replication" : { },
"deduplicationStatus" : "Enabled"
}
```
then I set the retention with size 10M and time to zero.
`pulsar-admin namespaces set-retention --size 40M -t 0 public/default`
I expect to storage bytes will drop after setting the retention, but nothing
changes after `topics stats` command call.
```json
{
"msgRateIn" : 0.0,
"msgThroughputIn" : 0.0,
"msgRateOut" : 0.0,
"msgThroughputOut" : 0.0,
"bytesInCounter" : 194020994,
"msgInCounter" : 2460600,
"bytesOutCounter" : 0,
"msgOutCounter" : 0,
"averageMsgSize" : 0.0,
"msgChunkPublished" : false,
"storageSize" : 194020994,
"backlogSize" : 8473994,
"publishers" : [ ],
"subscriptions" : { },
"replication" : { },
"deduplicationStatus" : "Enabled"
}
```
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