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https://issues.apache.org/jira/browse/ZOOKEEPER-5029?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Dávid Paksy reassigned ZOOKEEPER-5029:
--------------------------------------
Assignee: Dávid Paksy
> Port unification for PrometheusMetricsProvider
> ----------------------------------------------
>
> Key: ZOOKEEPER-5029
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-5029
> Project: ZooKeeper
> Issue Type: Task
> Reporter: Dávid Paksy
> Assignee: Dávid Paksy
> Priority: Major
>
> The Jetty admin server has a port unification feature, meaning both secure
> and insecure connections can be established on the same port. It can be
> enabled with the
> admin.portUnification=true configuration setting.
>
> In order to make it more consistent, PrometheusMetricsProvider could also
> provide such feature when metricsProvider.httpPort and
> metricsProvider.httpsPort are the same.
> For example:
> {noformat}
> metricsProvider.httpPort=7000
> metricsProvider.httpsPort=7000{noformat}
> At the moment ZooKeeper fails to start up when metricsProvider.httpPort and
> metricsProvider.httpsPort are the same:
> {noformat}
> 2026-03-18 14:33:14,221 [myid:] - ERROR
> [main:o.a.z.m.p.PrometheusMetricsProvider@194] - Failed to start Prometheus
> Jetty server
> java.io.IOException: Failed to bind to /0.0.0.0:7000
> at
> org.eclipse.jetty.server.ServerConnector.openAcceptChannel(ServerConnector.java:349)
> at
> org.eclipse.jetty.server.ServerConnector.open(ServerConnector.java:310)
> at
> org.eclipse.jetty.server.AbstractNetworkConnector.doStart(AbstractNetworkConnector.java:80)
> at
> org.eclipse.jetty.server.ServerConnector.doStart(ServerConnector.java:234)
> at
> org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
> at org.eclipse.jetty.server.Server.doStart(Server.java:401)
> at
> org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
> at
> org.apache.zookeeper.metrics.prometheus.PrometheusMetricsProvider.start(PrometheusMetricsProvider.java:188)
> at
> org.apache.zookeeper.metrics.impl.MetricsProviderBootstrap.startMetricsProvider(MetricsProviderBootstrap.java:45)
> at
> org.apache.zookeeper.server.ZooKeeperServerMain.runFromConfig(ZooKeeperServerMain.java:126)
> at
> org.apache.zookeeper.server.ZooKeeperServerMain.initializeAndRun(ZooKeeperServerMain.java:112)
> at
> org.apache.zookeeper.server.ZooKeeperServerMain.main(ZooKeeperServerMain.java:67)
> at
> org.apache.zookeeper.server.quorum.QuorumPeerMain.initializeAndRun(QuorumPeerMain.java:141)
> at
> org.apache.zookeeper.server.quorum.QuorumPeerMain.main(QuorumPeerMain.java:91)
> Caused by: java.net.BindException: Address already in use
> at java.base/sun.nio.ch.Net.bind0(Native Method)
> at java.base/sun.nio.ch.Net.bind(Net.java:555)
> at
> java.base/sun.nio.ch.ServerSocketChannelImpl.netBind(ServerSocketChannelImpl.java:337)
> at
> java.base/sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:294)
> at
> java.base/sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:89)
> at
> org.eclipse.jetty.server.ServerConnector.openAcceptChannel(ServerConnector.java:344)
> ... 13 common frames omitted
> {noformat}
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