yabinmeng opened a new issue #11467:
URL: https://github.com/apache/pulsar/issues/11467
**Describe the bug**
I'm installing Apache Pulsar 2.8.0 on VM host, sharing the same host for all
components (zookeeper, bookie, broker). According to the document, I need to
start zookeeper with an extra option, as below
```
$ PULSAR_EXTRA_OPTS="-Dstats_server_port=8001" bin/pulsar-daemon start
zookeeper
```
It turns out that zookeeper still starts metrics port at 8000. The log file
snippet is as below (httpPort=8000)
```
22:16:23.241 [main] INFO
org.apache.zookeeper.metrics.prometheus.PrometheusMetricsProvider -
Initializing metrics, configuration: {exportJvmInfo=true, httpPort=8000}
22:16:23.242 [main] INFO
org.apache.zookeeper.metrics.prometheus.PrometheusMetricsProvider - Starting
/metrics HTTP endpoint at port 8000 exportJvmInfo: true
22:16:23.266 [main] INFO org.eclipse.jetty.util.log - Logging initialized
@1049ms to org.eclipse.jetty.util.log.Slf4jLog
22:16:23.337 [main] INFO org.eclipse.jetty.server.Server -
jetty-9.4.42.v20210604; built: 2021-06-04T17:33:38.939Z; git:
5cd5e6d2375eeab146813b0de9f19eda6ab6e6cb; jvm 11.0.11+9-Ubuntu-0ubuntu2.18.04
22:16:23.371 [main] INFO org.eclipse.jetty.server.handler.ContextHandler -
Started o.e.j.s.ServletContextHandler@5778826f{/,null,AVAILABLE}
22:16:23.392 [main] INFO org.eclipse.jetty.server.AbstractConnector -
Started ServerConnector@78fbff54{HTTP/1.1, (http/1.1)}{0.0.0.0:8000}
22:16:23.392 [main] INFO org.eclipse.jetty.server.Server - Started @1176ms
....
```
This cause the issue when I try to start bookies, complaining about port
conflict.
I tested this in version 2.7.2 as well and it doesn't have this problem.
**To Reproduce**
Steps to reproduce the behavior:
I'm following exactly the procedure as described in Pulsar doc:
https://pulsar.apache.org/docs/en/deploy-bare-metal/
**Expected behavior**
zookeeper is started at the specified port in "-Dstats_server_port" option
**Screenshots**
**Desktop (please complete the following information):**
- OS: Linux Ubuntu 18
**Additional context**
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