massakam opened a new pull request, #17136:
URL: https://github.com/apache/pulsar/pull/17136
### Motivation
Add a new field named `ownerBroker` to topic stats. This is the hostname and
port of the broker owning the topic, separated by a colon. This is the same
name as the ephemeral node registered under `/loadbalance/brokers/` on
ZooKeeper.
```json
{
"msgRateIn" : 0.0,
"msgThroughputIn" : 0.0,
"msgRateOut" : 0.0,
"msgThroughputOut" : 0.0,
...
"compaction" : {
"lastCompactionRemovedEventCount" : 0,
"lastCompactionSucceedTimestamp" : 0,
"lastCompactionFailedTimestamp" : 0,
"lastCompactionDurationTimeInMills" : 0
},
"ownerBroker" : "localhost:8080"
}
```
This is useful to know which broker owns the topic.
### Modifications
Added a method `getLookupServiceAddress()` to the `PulsarService` class.
This method returns a string consisting of the advertised address and web
service port separated by a colon. The `asyncGetStats()` method of
`PersistentTopic` and `NonPersistentTopic` sets the string returned from
`PulsarService#getLookupServiceAddress()` to stats.
### Verifying this change
- [ ] Make sure that the change passes the CI checks.
### Documentation
- [ ] `doc`
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