Metric Overview
This is a screen where you can view the current key metrics of all brokers at a glance, consisting of several detailed categories.
Overall Broker Status
| Item | Description |
|---|---|
| Broker health | Displays the number of online/offline brokers |
| Active controllers | Displays the number of active controllers (error, if this value is not 1) |
| Topics | Total number of topics |
| Active partition | Number of active partitions |
| Connected ZooKeeper | Displays the ZooKeeper connection status of online brokers (error, if the number of online brokers and the number of connections do not match) |
| Under ISR | Number of topic partitions that do not meet the minISR setting (may temporarily be non-zero) |
| Under replicated partition | Number of topic partitions that do not meet the replication factor (0 value indicates normal status) |
Checking Inactive Partitions. If there are inactive partitions due to a broker being down, Active partition changes to Active/Inactive Partition, showing both the active and inactive partitions. Clicking the number of inactive partitions will display a list of topic partitions (including the location of replicas and ISR partitions) that are currently inactive.
Checking Partitions Not Meeting ISR. If there are partitions that do not meet the ISR, a [Warning Sign] will appear, and clicking on the sign will display a list of topic partitions that currently do not meet the min ISR.
For more details on min ISR, refer to the Topic Settings document.
Checking Under-Replicated Partitions. If there are under-replicated partitions, a [Warning Sign] will appear, and clicking on the sign will display a list of topic partitions that currently do not meet the replication factor.
For more details on replication factor, refer to the Topic Settings document.
Average Node Resource Usage Rate
| Item | Description |
|---|---|
| Average CPU Usage Rate | The average CPU usage rate across all brokers |
| Average Memory Usage Rate | The average memory usage rate across all brokers |
| Average Network Usage Rate | The average network usage rate across all brokers |
| Average Request Handler Usage Rate | The average usage rate of request handlers across all brokers |
Message Producing / Consuming / Traffic Imbalance
| Item | Description |
|---|---|
| Producing (Bytes in) | The total incoming message rate per second for the entire cluster (in bytes) |
| Consuming (Bytes out) | The total outgoing message rate per second for the entire cluster (in bytes) (including Consumer and Follower) |
| Traffic imbalance | The traffic ratio of leader partitions per broker |
Disk Usage
| Item | Description |
|---|---|
| Total disk usage | The total disk usage for topic partitions in all clusters |
| Max usage | The highest total disk usage for topic partitions per broker |
| Min usage | The lowest total disk usage for topic partitions per broker |
| Distribution | Skewed if the topic partition disk usage difference between brokers exceeds 10% |
| Leader Partition Distribution | Skewed If the leader imbalance ratio (normalized value) exceeds 10% |
Disk Imbalance. If disk usage is imbalanced, the [Smart Rebalance] button will appear, allowing you to balance out the usage through a rebalancing operation.
For more details, refer to the Smart Rebalance document.
Broker List
At the bottom of the metric overview page, you can see a list of all brokers. By clicking on a [Broker Name] in the list, you can navigate to the Broker Metrics details page.