How do I enable metrics?

[azeng528]

Search before asking

• I searched in the issues and found nothing similar.

Read release policy

• I understand that unsupported versions don't get bug fixes. I will attempt to reproduce the issue on a supported version of Pulsar client and Pulsar broker.

Version

pulsar version：3.0.2
|># java -version
java version "17.0.9" 2023-10-17 LTS
|># cat /etc/os-release
NAME="CentOS Linux"
VERSION="7 (Core)"
ID="centos"
ID_LIKE="rhel fedora"
VERSION_ID="7"
PRETTY_NAME="CentOS Linux 7 (Core)"

Minimal reproduce step

cluster is ok，However, the topic metrics extracted by the metrics interface are missing，After I restart the brokers and bookies of the entire cluster later, metrics will include the missing topic metrics，for example，before restart，not have the Topic of screenshot

What did you expect to see?

i hope the topic of screenshot is always get metrics，not restart broker and bookie ，then get this metrics

What did you see instead?

no

Anything else?

1

Are you willing to submit a PR?

• I'm willing to submit a PR!

[azeng528]

lose metrics name: pulsar subscribtion backlog

[Shawyeok]

Could you please provide more context here, such as the broker.conf configuration? Have you tried reproducing this issue with the latest 3.0.x version, specifically 3.0.8?

[azeng528]

i don't know which version have repair this bug，so i am not upgrate cluster to 3.0.8
broker.conf
metadataStoreUrl=zk:1.1.1.1:2181/cluster01
metadataStoreConfigPath=zk:1.1.1.1:2181/cluster01
configurationMetadataStoreUrl=zk:1.1.1.1:2181/cluster01
brokerServicePort=6650
webServicePort=8080
bindAddress=0.0.0.0
advertisedAddress=1.1.1.1
haProxyProtocolEnabled=false
numOrderedExecutorThreads=8
numCacheExecutorThreadPoolSize=10
enableBusyWait=false
clusterName=pulsar-cluster-01
maxTenants=0
bookkeeperMetadataServiceUri=zk+hierarchical://1.1.1.1:2181/cluster01/ledgers
topicLevelPoliciesEnabled=false

bookeeper.conf
bookiePort=3181
journalDirectories=/data1/bookie/journal1,/data1/bookie/journal2
minUsableSizeForIndexFileCreation=1073741824
advertisedAddress=1.1.1.1
allowLoopback=false
bookieDeathWatchInterval=1000
flushInterval=60000
useHostNameAsBookieID=false
bookieId=1.1.1.1:3181
metadataServiceUri=zk://1.1.1.1:2181/cluster01/ledgers

[lhotari]

Is this a cluster deployed with Apache Pulsar Helm chart? There's a known issue apache/pulsar-helm-chart#468 . Most recent comment provides some advice: apache/pulsar-helm-chart#468 (comment) . Contributions are welcome to address the issue!