PDavid commented on PR #2362:
URL: https://github.com/apache/zookeeper/pull/2362#issuecomment-4091217017
### Testing
Tested this locally as follows:
Created keystore:
```
keytool -genkeypair -alias zkAdmin -keyalg RSA -keysize 2048 \
-dname "CN=your.server.com" -validity 365 \
-keystore keystore.jks -storepass password -keypass password
```
Created truststore:
```
# Export the cert
keytool -export -alias zkAdmin -file zkAdmin.crt \
-keystore keystore.jks -storepass password
# Import into truststore
keytool -import -alias zkAdmin -file zkAdmin.crt \
-keystore truststore.jks -storepass password -noprompt
```
Added these to `zoo.cfg`:
```
...
metricsProvider.className=org.apache.zookeeper.metrics.prometheus.PrometheusMetricsProvider
metricsProvider.httpPort=7000
metricsProvider.httpsPort=7000
metricsProvider.ssl.keyStore.location=keystore.jks
metricsProvider.ssl.keyStore.password=password
metricsProvider.ssl.trustStore.location=keystore.jks
metricsProvider.ssl.trustStore.password=password
metricsProvider.ssl.need.client.auth=false
```
Started ZooKeeper:
```
mvn clean install -DskipTests && bin/zkServer.sh start
```
ZooKeeper log:
```
...
2026-03-19 16:52:27,546 [myid:] - INFO
[main:o.a.z.s.q.QuorumPeerConfig@167] - Reading configuration from:
/home/david/projects/upstream/zookeeper/bin/../conf/zoo.cfg
2026-03-19 16:52:27,550 [myid:] - INFO
[main:o.a.z.s.q.QuorumPeerConfig@434] - clientPortAddress is 0.0.0.0:2181
2026-03-19 16:52:27,551 [myid:] - INFO
[main:o.a.z.s.q.QuorumPeerConfig@438] - secureClientPort is not set
2026-03-19 16:52:27,551 [myid:] - INFO
[main:o.a.z.s.q.QuorumPeerConfig@454] - observerMasterPort is not set
2026-03-19 16:52:27,551 [myid:] - INFO
[main:o.a.z.s.q.QuorumPeerConfig@471] - metricsProvider.className is
org.apache.zookeeper.metrics.prometheus.PrometheusMetricsProvider
2026-03-19 16:52:27,552 [myid:] - INFO
[main:o.a.z.s.DatadirCleanupManager@78] - autopurge.snapRetainCount set to 3
2026-03-19 16:52:27,552 [myid:] - INFO
[main:o.a.z.s.DatadirCleanupManager@79] - autopurge.purgeInterval set to 0
2026-03-19 16:52:27,552 [myid:] - INFO
[main:o.a.z.s.DatadirCleanupManager@101] - Purge task is not scheduled.
2026-03-19 16:52:27,553 [myid:] - WARN [main:o.a.z.s.q.QuorumPeerMain@139]
- Either no config or no quorum defined in config, running in standalone mode
2026-03-19 16:52:27,553 [myid:] - INFO [main:o.a.z.j.ManagedUtil@46] -
Log4j 1.2 jmx support not found; jmx disabled.
2026-03-19 16:52:27,554 [myid:] - INFO
[main:o.a.z.s.q.QuorumPeerConfig@167] - Reading configuration from:
/home/david/projects/upstream/zookeeper/bin/../conf/zoo.cfg
2026-03-19 16:52:27,554 [myid:] - INFO
[main:o.a.z.s.q.QuorumPeerConfig@434] - clientPortAddress is 0.0.0.0:2181
2026-03-19 16:52:27,554 [myid:] - INFO
[main:o.a.z.s.q.QuorumPeerConfig@438] - secureClientPort is not set
2026-03-19 16:52:27,554 [myid:] - INFO
[main:o.a.z.s.q.QuorumPeerConfig@454] - observerMasterPort is not set
2026-03-19 16:52:27,554 [myid:] - INFO
[main:o.a.z.s.q.QuorumPeerConfig@471] - metricsProvider.className is
org.apache.zookeeper.metrics.prometheus.PrometheusMetricsProvider
2026-03-19 16:52:27,554 [myid:] - INFO
[main:o.a.z.s.ZooKeeperServerMain@122] - Starting server
2026-03-19 16:52:27,559 [myid:] - INFO
[main:o.a.z.m.p.PrometheusMetricsProvider@123] - Initializing Prometheus
metrics with Jetty, configuration: {httpsPort=7000,
ssl.keyStore.location=keystore.jks, ssl.trustStore.location=keystore.jks,
ssl.keyStore.password=password, ssl.trustStore.password=password,
ssl.need.client.auth=false, httpPort=7000,
ssl.enabledProtocols=TLSv1.2,TLSv1.3,
ssl.ciphersuites=TLS_AES_128_GCM_SHA256,TLS_AES_256_GCM_SHA384,TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384}
2026-03-19 16:52:27,587 [myid:] - INFO
[main:o.a.z.m.p.PrometheusMetricsProvider@161] - Starting Prometheus Jetty
server...
2026-03-19 16:52:27,592 [myid:] - INFO [main:o.e.j.u.l.Log@170] - Logging
initialized @313ms to org.eclipse.jetty.util.log.Slf4jLog
2026-03-19 16:52:27,645 [myid:] - INFO [main:o.e.j.s.Server@375] -
jetty-9.4.58.v20250814; built: 2025-08-14T02:28:49.637Z; git:
8f1440587e9e4ae7db3d74cf205643f3d707148d; jvm 1.8.0_422-b05
2026-03-19 16:52:27,662 [myid:] - INFO [main:o.e.j.s.h.ContextHandler@921]
- Started o.e.j.s.ServletContextHandler@2d1ef81a{/,null,AVAILABLE}
2026-03-19 16:52:27,759 [myid:] - INFO
[main:o.e.j.u.s.SslContextFactory@358] -
x509=X509@4c39bec8(zkadmin,h=[your.server.com],a=[],w=[]) for
Server@1f59a598[provider=null,keyStore=file:///home/david/projects/upstream/zookeeper/keystore.jks,trustStore=file:///home/david/projects/upstream/zookeeper/keystore.jks]
2026-03-19 16:52:27,799 [myid:] - INFO [main:o.e.j.s.AbstractConnector@333]
- Started ServerConnector@3835c46{SSL, (ssl, http/1.1)}{0.0.0.0:7000}
2026-03-19 16:52:27,799 [myid:] - INFO [main:o.e.j.s.Server@415] - Started
@521ms
2026-03-19 16:52:27,799 [myid:] - INFO
[main:o.a.z.m.p.PrometheusMetricsProvider@223] - Prometheus metrics provider
with Jetty started. HTTP port: 7000, HTTPS port: 7000
2026-03-19 16:52:27,805 [myid:] - INFO [main:o.a.z.s.ServerMetrics@64] -
ServerMetrics initialized with provider
org.apache.zookeeper.metrics.prometheus.PrometheusMetricsProvider@68e965f5
2026-03-19 16:52:27,813 [myid:] - INFO
[main:o.a.z.s.a.DigestAuthenticationProvider@51] - ACL digest algorithm is: SHA1
2026-03-19 16:52:27,814 [myid:] - INFO
[main:o.a.z.s.a.DigestAuthenticationProvider@65] -
zookeeper.DigestAuthenticationProvider.enabled = true
2026-03-19 16:52:27,815 [myid:] - INFO [main:o.a.z.s.p.FileTxnSnapLog@124]
- zookeeper.snapshot.trust.empty : false
2026-03-19 16:52:27,820 [myid:] - INFO [main:o.a.z.ZookeeperBanner@42] -
2026-03-19 16:52:27,820 [myid:] - INFO [main:o.a.z.ZookeeperBanner@42] -
______ _
2026-03-19 16:52:27,820 [myid:] - INFO [main:o.a.z.ZookeeperBanner@42] -
|___ / | |
2026-03-19 16:52:27,820 [myid:] - INFO [main:o.a.z.ZookeeperBanner@42] -
/ / ___ ___ | | __ ___ ___ _ __ ___ _ __
2026-03-19 16:52:27,820 [myid:] - INFO [main:o.a.z.ZookeeperBanner@42] -
/ / / _ \ / _ \ | |/ / / _ \ / _ \ | '_ \ / _ \ | '__|
2026-03-19 16:52:27,820 [myid:] - INFO [main:o.a.z.ZookeeperBanner@42] -
/ /__ | (_) | | (_) | | < | __/ | __/ | |_) | | __/ | |
2026-03-19 16:52:27,820 [myid:] - INFO [main:o.a.z.ZookeeperBanner@42] -
/_____| \___/ \___/ |_|\_\ \___| \___| | .__/ \___| |_|
2026-03-19 16:52:27,820 [myid:] - INFO [main:o.a.z.ZookeeperBanner@42] -
| |
2026-03-19 16:52:27,820 [myid:] - INFO [main:o.a.z.ZookeeperBanner@42] -
|_|
2026-03-19 16:52:27,820 [myid:] - INFO [main:o.a.z.ZookeeperBanner@42] -
2026-03-19 16:52:27,821 [myid:] - INFO [main:o.a.z.Environment@98] - Server
environment:zookeeper.version=3.10.0-SNAPSHOT-9dcea1921e24a1065bc7d56e2c13056da36d6ad5-dirty,
built on 2026-03-19 15:52 UTC
2026-03-19 16:52:27,821 [myid:] - INFO [main:o.a.z.Environment@98] - Server
environment:host.name=paksyd-5680-ubuntu
2026-03-19 16:52:27,821 [myid:] - INFO [main:o.a.z.Environment@98] - Server
environment:java.version=1.8.0_422
2026-03-19 16:52:27,822 [myid:] - INFO [main:o.a.z.Environment@98] - Server
environment:java.vendor=Temurin
2026-03-19 16:52:27,822 [myid:] - INFO [main:o.a.z.Environment@98] - Server
environment:java.home=/home/david/.sdkman/candidates/java/8.0.422-tem/jre
2026-03-19 16:52:27,822 [myid:] - INFO [main:o.a.z.Environment@98] - Server
environment:java.class.path=/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/classes:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/classes:/home/david/projects/upstream/zookeeper/bin/../build/classes:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/zookeeper-jute-3.10.0-SNAPSHOT.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/zookeeper-3.10.0-SNAPSHOT.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/slf4j-api-2.0.13.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/prometheus-metrics-tracer-otel-agent-1.3.10.jar:/home/david/projects/upstream/zookeep
er/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/prometheus-metrics-tracer-otel-1.3.10.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/prometheus-metrics-tracer-initializer-1.3.10.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/prometheus-metrics-tracer-common-1.3.10.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/prometheus-metrics-model-1.3.10.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/prometheus-metrics-instrumentation-jvm-1.3.10.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/prometheus-metrics-exposition-textformats-1.3.10.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-provi
ders/zookeeper-prometheus-metrics/target/lib/prometheus-metrics-exposition-formats-1.3.10.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/prometheus-metrics-exporter-servlet-javax-1.3.10.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/prometheus-metrics-exporter-httpserver-1.3.10.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/prometheus-metrics-exporter-common-1.3.10.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/prometheus-metrics-core-1.3.10.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/prometheus-metrics-config-1.3.10.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/tar
get/lib/opentest4j-1.2.0.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/objenesis-3.3.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/netty-transport-native-unix-common-4.1.130.Final.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/netty-transport-native-epoll-4.1.130.Final-linux-x86_64.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/netty-transport-classes-epoll-4.1.130.Final.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/netty-transport-4.1.130.Final.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/netty-tcnative-classes-2.0.74.Final.jar:/home/david/projects/upst
ream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/netty-tcnative-boringssl-static-2.0.74.Final-windows-x86_64.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/netty-tcnative-boringssl-static-2.0.74.Final-osx-x86_64.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/netty-tcnative-boringssl-static-2.0.74.Final-osx-aarch_64.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/netty-tcnative-boringssl-static-2.0.74.Final-linux-x86_64.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/netty-tcnative-boringssl-static-2.0.74.Final-linux-aarch_64.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/netty-tcnative-borin
gssl-static-2.0.74.Final.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/netty-resolver-4.1.130.Final.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/netty-handler-4.1.130.Final.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/netty-common-4.1.130.Final.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/netty-codec-4.1.130.Final.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/netty-buffer-4.1.130.Final.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/mockito-core-4.9.0.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-me
trics/target/lib/logback-core-1.3.15.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/logback-classic-1.3.15.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/junit-platform-suite-api-1.6.2.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/junit-platform-runner-1.6.2.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/junit-platform-launcher-1.6.2.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/junit-platform-engine-1.6.2.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/junit-platform-commons-1.6.2.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-provider
s/zookeeper-prometheus-metrics/target/lib/junit-jupiter-engine-5.6.2.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/junit-jupiter-api-5.6.2.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/junit-4.13.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/jetty-util-ajax-9.4.58.v20250814.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/jetty-util-9.4.58.v20250814.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/jetty-servlet-9.4.58.v20250814.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/jetty-server-9.4.58.v20250814.jar:/home/david/projects/upstream/zookeeper/bin/../zookee
per-metrics-providers/zookeeper-prometheus-metrics/target/lib/jetty-security-9.4.58.v20250814.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/jetty-io-9.4.58.v20250814.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/jetty-http-9.4.58.v20250814.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/javax.servlet-api-3.1.0.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/hamcrest-core-1.3.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/dnsjava-3.5.1.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/commons-io-2.17.0.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-
metrics-providers/zookeeper-prometheus-metrics/target/lib/byte-buddy-agent-1.12.16.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/byte-buddy-1.12.16.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/audience-annotations-0.12.0.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-metrics-providers/zookeeper-prometheus-metrics/target/lib/apiguardian-api-1.1.0.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/zookeeper-jute-3.10.0-SNAPSHOT.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/tools-0.25.4.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/token-provider-2.0.0.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/spotbugs-annotations-4.0.2.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/s
nappy-java-1.1.10.5.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/slf4j-api-2.0.13.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/opentest4j-1.2.0.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/objenesis-3.3.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/nimbus-jose-jwt-4.41.2.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/netty-transport-native-unix-common-4.1.130.Final.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/netty-transport-native-epoll-4.1.130.Final-linux-x86_64.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/netty-transport-classes-epoll-4.1.130.Final.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/netty-transport-4.1.130.Final.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/netty-tcnative-c
lasses-2.0.74.Final.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/netty-tcnative-boringssl-static-2.0.74.Final-windows-x86_64.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/netty-tcnative-boringssl-static-2.0.74.Final-osx-x86_64.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/netty-tcnative-boringssl-static-2.0.74.Final-osx-aarch_64.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/netty-tcnative-boringssl-static-2.0.74.Final-linux-x86_64.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/netty-tcnative-boringssl-static-2.0.74.Final-linux-aarch_64.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/netty-tcnative-boringssl-static-2.0.74.Final.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/netty-resolver-4.1.130.Final.jar:/home/david/projects/upstream/zookeeper/bin/../zookeep
er-server/target/lib/netty-handler-4.1.130.Final.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/netty-common-4.1.130.Final.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/netty-codec-4.1.130.Final.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/netty-buffer-4.1.130.Final.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/mockito-inline-4.9.0.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/mockito-core-4.9.0.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/metrics-core-4.1.12.1.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/logback-core-1.3.15.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/logback-classic-1.3.15.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/kerby-xdr-2.0.0.jar:/home/david/projects/upstream/zo
okeeper/bin/../zookeeper-server/target/lib/kerby-util-2.0.0.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/kerby-pkix-2.0.0.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/kerby-config-2.0.0.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/kerby-asn1-2.0.0.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/kerb-util-2.0.0.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/kerb-simplekdc-2.0.0.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/kerb-server-2.0.0.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/kerb-identity-2.0.0.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/kerb-crypto-2.0.0.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/kerb-core-2.0.0.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-ser
ver/target/lib/kerb-common-2.0.0.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/kerb-client-2.0.0.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/kerb-admin-2.0.0.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/jvm-driver-9.4.2.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/jvm-driver-8.14.0.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/junit-platform-suite-api-1.6.2.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/junit-platform-runner-1.6.2.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/junit-platform-launcher-1.6.2.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/junit-platform-engine-1.6.2.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/junit-platform-commons-1.6.2.jar:/home/david/projects/upstream/zoo
keeper/bin/../zookeeper-server/target/lib/junit-jupiter-params-5.6.2.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/junit-jupiter-engine-5.6.2.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/junit-jupiter-api-5.6.2.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/junit-4.13.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/jsr305-3.0.2.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/json-smart-2.3.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/jmockit-1.48.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/jline-3.25.1.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/jetty-util-ajax-9.4.58.v20250814.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/jetty-util-9.4.58.v20250814.jar:/home/david/projects/upstream/zookee
per/bin/../zookeeper-server/target/lib/jetty-servlet-9.4.58.v20250814.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/jetty-server-9.4.58.v20250814.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/jetty-security-9.4.58.v20250814.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/jetty-io-9.4.58.v20250814.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/jetty-http-9.4.58.v20250814.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/jetty-client-9.4.58.v20250814.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/jcip-annotations-1.0-1.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/javax.servlet-api-3.1.0.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/jackson-databind-2.18.1.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib
/jackson-core-2.18.1.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/jackson-annotations-2.18.1.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/hamcrest-library-2.2.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/hamcrest-core-2.2.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/hamcrest-2.2.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/dnsjava-3.5.1.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/core-12.62.5.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/commons-io-2.17.0.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/commons-collections4-4.4.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/commons-cli-1.5.0.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/byte-buddy-agent-1.
12.16.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/byte-buddy-1.12.16.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/bcutil-jdk18on-1.78.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/bcprov-jdk18on-1.78.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/bcpkix-jdk18on-1.78.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/audience-annotations-0.12.0.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/asm-5.0.4.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/apiguardian-api-1.1.0.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-server/target/lib/accessors-smart-1.2.jar:/home/david/projects/upstream/zookeeper/bin/../build/lib/*.jar:/home/david/projects/upstream/zookeeper/bin/../lib/*.jar:/home/david/projects/upstream/zookeeper/bin/../zookeeper-*.jar:/home/david/p
rojects/upstream/zookeeper/bin/../zookeeper-server/src/main/resources/lib/*.jar:/home/david/projects/upstream/zookeeper/bin/../conf:
2026-03-19 16:52:27,822 [myid:] - INFO [main:o.a.z.Environment@98] - Server
environment:java.library.path=/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib
2026-03-19 16:52:27,822 [myid:] - INFO [main:o.a.z.Environment@98] - Server
environment:java.io.tmpdir=/tmp
2026-03-19 16:52:27,822 [myid:] - INFO [main:o.a.z.Environment@98] - Server
environment:java.compiler=<NA>
2026-03-19 16:52:27,822 [myid:] - INFO [main:o.a.z.Environment@98] - Server
environment:os.name=Linux
2026-03-19 16:52:27,822 [myid:] - INFO [main:o.a.z.Environment@98] - Server
environment:os.arch=amd64
2026-03-19 16:52:27,822 [myid:] - INFO [main:o.a.z.Environment@98] - Server
environment:os.version=6.17.0-19-generic
2026-03-19 16:52:27,822 [myid:] - INFO [main:o.a.z.Environment@98] - Server
environment:user.name=david
2026-03-19 16:52:27,822 [myid:] - INFO [main:o.a.z.Environment@98] - Server
environment:user.home=/home/david
2026-03-19 16:52:27,822 [myid:] - INFO [main:o.a.z.Environment@98] - Server
environment:user.dir=/home/david/projects/upstream/zookeeper
2026-03-19 16:52:27,822 [myid:] - INFO [main:o.a.z.Environment@98] - Server
environment:jvm.memory.free=858MB
2026-03-19 16:52:27,822 [myid:] - INFO [main:o.a.z.Environment@98] - Server
environment:jvm.memory.max=958MB
2026-03-19 16:52:27,822 [myid:] - INFO [main:o.a.z.Environment@98] - Server
environment:jvm.memory.total=958MB
2026-03-19 16:52:27,822 [myid:] - INFO [main:o.a.z.s.ZooKeeperServer@151] -
zookeeper.enableEagerACLCheck = false
2026-03-19 16:52:27,822 [myid:] - INFO [main:o.a.z.s.ZooKeeperServer@164] -
zookeeper.digest.enabled = true
2026-03-19 16:52:27,822 [myid:] - INFO [main:o.a.z.s.ZooKeeperServer@168] -
zookeeper.closeSessionTxn.enabled = true
2026-03-19 16:52:27,822 [myid:] - INFO [main:o.a.z.s.ZooKeeperServer@2237]
- zookeeper.serializeLastProcessedZxid.enabled = true
2026-03-19 16:52:27,822 [myid:] - INFO [main:o.a.z.s.ZooKeeperServer@1585]
- zookeeper.flushDelay = 0 ms
2026-03-19 16:52:27,823 [myid:] - INFO [main:o.a.z.s.ZooKeeperServer@1594]
- zookeeper.maxWriteQueuePollTime = 0 ms
2026-03-19 16:52:27,823 [myid:] - INFO [main:o.a.z.s.ZooKeeperServer@1603]
- zookeeper.maxBatchSize=1000
2026-03-19 16:52:27,823 [myid:] - INFO [main:o.a.z.s.ZooKeeperServer@289] -
zookeeper.intBufferStartingSizeBytes = 1024
2026-03-19 16:52:27,823 [myid:] - INFO [main:o.a.z.s.BlueThrottle@141] -
Weighed connection throttling is disabled
2026-03-19 16:52:27,824 [myid:] - INFO
[main:o.a.z.s.AuthenticationHelper@66] - zookeeper.enforce.auth.enabled = false
2026-03-19 16:52:27,824 [myid:] - INFO
[main:o.a.z.s.AuthenticationHelper@67] - zookeeper.enforce.auth.schemes = []
2026-03-19 16:52:27,824 [myid:] - INFO [main:o.a.z.s.ZooKeeperServer@1395]
- minSessionTimeout set to 4000 ms
2026-03-19 16:52:27,824 [myid:] - INFO [main:o.a.z.s.ZooKeeperServer@1404]
- maxSessionTimeout set to 40000 ms
2026-03-19 16:52:27,825 [myid:] - INFO [main:o.a.z.s.ResponseCache@50] -
getData response cache size is initialized with value 400.
2026-03-19 16:52:27,825 [myid:] - INFO [main:o.a.z.s.ResponseCache@50] -
getChildren response cache size is initialized with value 400.
2026-03-19 16:52:27,826 [myid:] - INFO
[main:o.a.z.s.u.RequestPathMetricsCollector@109] -
zookeeper.pathStats.slotCapacity = 60
2026-03-19 16:52:27,826 [myid:] - INFO
[main:o.a.z.s.u.RequestPathMetricsCollector@110] -
zookeeper.pathStats.slotDuration = 15
2026-03-19 16:52:27,826 [myid:] - INFO
[main:o.a.z.s.u.RequestPathMetricsCollector@111] - zookeeper.pathStats.maxDepth
= 6
2026-03-19 16:52:27,826 [myid:] - INFO
[main:o.a.z.s.u.RequestPathMetricsCollector@112] -
zookeeper.pathStats.initialDelay = 5
2026-03-19 16:52:27,826 [myid:] - INFO
[main:o.a.z.s.u.RequestPathMetricsCollector@113] - zookeeper.pathStats.delay = 5
2026-03-19 16:52:27,826 [myid:] - INFO
[main:o.a.z.s.u.RequestPathMetricsCollector@114] - zookeeper.pathStats.enabled
= false
2026-03-19 16:52:27,827 [myid:] - INFO [main:o.a.z.s.ZooKeeperServer@1622]
- The max bytes for all large requests are set to 104857600
2026-03-19 16:52:27,827 [myid:] - INFO [main:o.a.z.s.ZooKeeperServer@1636]
- The large request threshold is set to -1
2026-03-19 16:52:27,827 [myid:] - INFO [main:o.a.z.s.ZooKeeperServer@387] -
Created server with tickTime 2000 ms minSessionTimeout 4000 ms
maxSessionTimeout 40000 ms clientPortListenBacklog -1 dataLogdir
/tmp/zookeeper/version-2 snapdir /tmp/zookeeper/version-2
2026-03-19 16:52:27,829 [myid:] - INFO [main:o.a.z.c.X509Util@85] - Setting
-D jdk.tls.rejectClientInitiatedRenegotiation=true to disable client-initiated
TLS renegotiation
2026-03-19 16:52:27,855 [myid:] - INFO [main:o.a.z.c.X509Util@109] -
Default TLS protocol is TLSv1.3, supported TLS protocols are [TLSv1.3, TLSv1.2,
TLSv1.1, TLSv1, SSLv3, SSLv2Hello]
2026-03-19 16:52:27,890 [myid:] - INFO
[main:o.a.z.s.a.JettyAdminServer@143] - Successfully loaded private key from
keystore.jks
2026-03-19 16:52:27,890 [myid:] - INFO
[main:o.a.z.s.a.JettyAdminServer@144] - Successfully loaded certificate
authority from truststore.jks
2026-03-19 16:52:27,893 [myid:] - WARN [main:o.e.j.s.h.ContextHandler@1662]
- o.e.j.s.ServletContextHandler@696da30b{/,null,STOPPED} contextPath ends with
/*
2026-03-19 16:52:27,893 [myid:] - WARN [main:o.e.j.s.h.ContextHandler@1673]
- Empty contextPath
2026-03-19 16:52:27,898 [myid:] - INFO [main:o.e.j.s.Server@375] -
jetty-9.4.58.v20250814; built: 2025-08-14T02:28:49.637Z; git:
8f1440587e9e4ae7db3d74cf205643f3d707148d; jvm 1.8.0_422-b05
2026-03-19 16:52:27,901 [myid:] - INFO
[main:o.e.j.s.s.DefaultSessionIdManager@334] - DefaultSessionIdManager
workerName=node0
2026-03-19 16:52:27,901 [myid:] - INFO
[main:o.e.j.s.s.DefaultSessionIdManager@339] - No SessionScavenger set, using
defaults
2026-03-19 16:52:27,902 [myid:] - INFO [main:o.e.j.s.s.HouseKeeper@132] -
node0 Scavenging every 660000ms
2026-03-19 16:52:27,904 [myid:] - WARN
[main:o.e.j.s.ConstraintSecurityHandler@759] -
[email protected]@696da30b{/,null,STARTING} has
uncovered http methods for path: /*
2026-03-19 16:52:27,905 [myid:] - INFO [main:o.e.j.s.h.ContextHandler@921]
- Started o.e.j.s.ServletContextHandler@696da30b{/,null,AVAILABLE}
2026-03-19 16:52:27,905 [myid:] - INFO
[main:o.e.j.u.s.SslContextFactory@358] -
x509=X509@6f46426d(zkadmin,h=[your.server.com],a=[],w=[]) for
Server@73700b80[provider=null,keyStore=null,trustStore=null]
2026-03-19 16:52:27,922 [myid:] - INFO [main:o.e.j.s.AbstractConnector@333]
- Started ServerConnector@2e222612{SSL, (ssl, http/1.1)}{0.0.0.0:8080}
2026-03-19 16:52:27,922 [myid:] - INFO [main:o.e.j.s.Server@415] - Started
@643ms
2026-03-19 16:52:27,922 [myid:] - INFO
[main:o.a.z.s.a.JettyAdminServer@201] - Started AdminServer on address 0.0.0.0,
port 8080 and command URL /commands
2026-03-19 16:52:27,924 [myid:] - INFO [main:o.a.z.s.ServerCnxnFactory@172]
- Using org.apache.zookeeper.server.NIOServerCnxnFactory as server connection
factory
2026-03-19 16:52:27,925 [myid:] - WARN [main:o.a.z.s.ServerCnxnFactory@337]
- maxCnxns is not configured, using default value 0.
2026-03-19 16:52:27,926 [myid:] - INFO
[main:o.a.z.s.NIOServerCnxnFactory@652] - Configuring NIO connection handler
with 10s sessionless connection timeout, 3 selector thread(s), 40 worker
threads, and 64 kB direct buffers.
2026-03-19 16:52:27,927 [myid:] - INFO
[main:o.a.z.s.NIOServerCnxnFactory@660] - binding to port 0.0.0.0/0.0.0.0:2181
2026-03-19 16:52:27,934 [myid:] - INFO
[main:o.a.z.s.w.WatchManagerFactory@42] - Using
org.apache.zookeeper.server.watch.WatchManager as watch manager
2026-03-19 16:52:27,934 [myid:] - INFO
[main:o.a.z.s.w.WatchManagerFactory@42] - Using
org.apache.zookeeper.server.watch.WatchManager as watch manager
2026-03-19 16:52:27,934 [myid:] - INFO [main:o.a.z.s.ZKDatabase@137] -
zookeeper.snapshotSizeFactor = 0.33
2026-03-19 16:52:27,934 [myid:] - INFO [main:o.a.z.s.ZKDatabase@157] -
zookeeper.commitLogCount=500
2026-03-19 16:52:27,936 [myid:] - INFO [main:o.a.z.s.p.SnapStream@61] -
zookeeper.snapshot.compression.method = CHECKED
2026-03-19 16:52:27,936 [myid:] - INFO [main:o.a.z.s.p.FileSnap@86] -
Reading snapshot /tmp/zookeeper/version-2/snapshot.0
2026-03-19 16:52:27,938 [myid:] - INFO [main:o.a.z.s.DataTree@1706] - The
digest value is empty in snapshot
2026-03-19 16:52:27,949 [myid:] - INFO [main:o.a.z.s.p.FileTxnSnapLog@372]
- 15 txns loaded in 5 ms
2026-03-19 16:52:27,949 [myid:] - INFO [main:o.a.z.s.ZKDatabase@294] -
Snapshot loaded in 15 ms, highest zxid is 0xf, digest is 2901938155
2026-03-19 16:52:27,950 [myid:] - INFO [main:o.a.z.s.p.FileTxnSnapLog@480]
- Snapshotting: 0xf to /tmp/zookeeper/version-2/snapshot.f
2026-03-19 16:52:27,951 [myid:] - INFO [main:o.a.z.s.ZooKeeperServer@588] -
Snapshot taken in 1 ms
2026-03-19 16:52:27,983 [myid:] - INFO [main:o.a.z.s.RequestThrottler@75] -
zookeeper.request_throttler.shutdownTimeout = 10000 ms
2026-03-19 16:52:27,983 [myid:] - INFO [ProcessThread(sid:0
cport:2181)::o.a.z.s.PrepRequestProcessor@135] - PrepRequestProcessor (sid:0)
started, reconfigEnabled=false
2026-03-19 16:52:27,991 [myid:] - INFO [main:o.a.z.s.ContainerManager@97] -
Using checkIntervalMs=60000 maxPerMinute=10000 maxNeverUsedIntervalMs=300000
2026-03-19 16:52:27,992 [myid:] - INFO [main:o.a.z.a.ZKAuditProvider@42] -
ZooKeeper audit is disabled.
```
Call PrometheusMetricsProvider using http:
```
curl -k -v http://localhost:7000/metrics
* Host localhost:7000 was resolved.
* IPv6: ::1
* IPv4: 127.0.0.1
* Trying [::1]:7000...
* Connected to localhost (::1) port 7000
* using HTTP/1.x
> GET /metrics HTTP/1.1
> Host: localhost:7000
> User-Agent: curl/8.15.0
> Accept: */*
>
* Request completely sent off
< HTTP/1.1 200 OK
< Date: Thu, 19 Mar 2026 15:53:44 GMT
< Content-Type: text/plain; version=0.0.4; charset=utf-8
< Content-Length: 38880
< Server: Jetty(9.4.58.v20250814)
<
# HELP add_dead_watcher_stall_time_total add_dead_watcher_stall_time counter
# TYPE add_dead_watcher_stall_time_total counter
add_dead_watcher_stall_time_total 0.0
# HELP approximate_data_size approximate_data_size
# TYPE approximate_data_size gauge
approximate_data_size 44.0
# HELP auth_failed_count auth_failed_count
# TYPE auth_failed_count gauge
auth_failed_count 0.0
# HELP avg_latency avg_latency
# TYPE avg_latency gauge
avg_latency 0.0
# HELP bytes_received_count_total bytes_received_count counter
# TYPE bytes_received_count_total counter
bytes_received_count_total 0.0
# HELP close_session_prep_time close_session_prep_time summary
# TYPE close_session_prep_time summary
close_session_prep_time{quantile="0.5"} NaN
close_session_prep_time{quantile="0.95"} NaN
close_session_prep_time{quantile="0.99"} NaN
close_session_prep_time_count 0
close_session_prep_time_sum 0.0
...
write_per_namespace_sum{key="acl_auth_test"} 28.0
# HELP znode_count znode_count
# TYPE znode_count gauge
znode_count 5.0
* Connection #0 to host localhost left intact
```
Call PrometheusMetricsProvider using https:
```
curl -k -v https://localhost:7000/metrics
* Host localhost:7000 was resolved.
* IPv6: ::1
* IPv4: 127.0.0.1
* Trying [::1]:7000...
* ALPN: curl offers h2,http/1.1
* TLSv1.3 (OUT), TLS handshake, Client hello (1):
* TLSv1.3 (IN), TLS handshake, Server hello (2):
* TLSv1.3 (OUT), TLS change cipher, Change cipher spec (1):
* TLSv1.3 (OUT), TLS handshake, Client hello (1):
* TLSv1.3 (IN), TLS handshake, Server hello (2):
* TLSv1.3 (IN), TLS change cipher, Change cipher spec (1):
* TLSv1.3 (IN), TLS handshake, Encrypted Extensions (8):
* TLSv1.3 (IN), TLS handshake, Request CERT (13):
* TLSv1.3 (IN), TLS handshake, Certificate (11):
* TLSv1.3 (IN), TLS handshake, CERT verify (15):
* TLSv1.3 (IN), TLS handshake, Finished (20):
* TLSv1.3 (OUT), TLS handshake, Certificate (11):
* TLSv1.3 (OUT), TLS handshake, Finished (20):
* SSL connection using TLSv1.3 / TLS_AES_256_GCM_SHA384 / secp256r1 /
RSASSA-PSS
* ALPN: server did not agree on a protocol. Uses default.
* Server certificate:
* subject: CN=your.server.com
* start date: Mar 10 12:58:28 2026 GMT
* expire date: Mar 10 12:58:28 2027 GMT
* issuer: CN=your.server.com
* SSL certificate verify result: self-signed certificate (18), continuing
anyway.
* Certificate level 0: Public key type RSA (2048/112 Bits/secBits), signed
using sha256WithRSAEncryption
* Connected to localhost (::1) port 7000
* using HTTP/1.x
> GET /metrics HTTP/1.1
> Host: localhost:7000
> User-Agent: curl/8.15.0
> Accept: */*
>
* Request completely sent off
* TLSv1.3 (IN), TLS handshake, Newsession Ticket (4):
< HTTP/1.1 200 OK
< Date: Thu, 19 Mar 2026 15:54:49 GMT
< Strict-Transport-Security: max-age=86400; includeSubDomains
< Content-Type: text/plain; version=0.0.4; charset=utf-8
< Content-Length: 38884
< Server: Jetty(9.4.58.v20250814)
<
# HELP add_dead_watcher_stall_time_total add_dead_watcher_stall_time counter
# TYPE add_dead_watcher_stall_time_total counter
add_dead_watcher_stall_time_total 0.0
# HELP approximate_data_size approximate_data_size
# TYPE approximate_data_size gauge
approximate_data_size 44.0
# HELP auth_failed_count auth_failed_count
# TYPE auth_failed_count gauge
auth_failed_count 0.0
...
# HELP write_per_namespace write_per_namespace summary
# TYPE write_per_namespace summary
write_per_namespace{key="acl_auth_test",quantile="0.5"} 14.0
write_per_namespace_count{key="acl_auth_test"} 2
write_per_namespace_sum{key="acl_auth_test"} 28.0
# HELP znode_count znode_count
# TYPE znode_count gauge
znode_count 5.0
* Connection #0 to host localhost left intact
```
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