Pulsar/BookKeeper 都提供了 Prometheus 接口，相关统计指标可以直接使用 Http 方式获取并直接对接 Prometheus/Grafana。

此外 StreamNative 提供了 Pulsar Manager 用于更直观地对 Pulsar 进行监控。

streamnative/pulsar-manager

一些比较关键的 Pulsar 监控指标如下：

Pulsar Broker

• jvm heap/gc
• bytes in per broker
• message in per broker
• loadbalance
• broker 端 Cache 命中率
• bookie client quarantine ratio
• bookie client request queue

BookKeeper

• bookie request queue size
• bookie request queue wait time
• add entry 99th latency
• read entry 99th latency
• journal create log latency
• ledger write cache flush latency
• entry read throttle

ZooKeeper

• local/global ZooKeeper read/write request latency