telegraf/plugins/inputs/zookeeper/README.md

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## Telegraf Plugin: Zookeeper
#### Description
The zookeeper plugin collects variables outputted from the 'mntr' command
[Zookeeper Admin](https://zookeeper.apache.org/doc/trunk/zookeeperAdmin.html).
```
echo mntr | nc localhost 2181
zk_version 3.4.0
zk_avg_latency 0
zk_max_latency 0
zk_min_latency 0
zk_packets_received 70
zk_packets_sent 69
zk_outstanding_requests 0
zk_server_state leader
zk_znode_count 4
zk_watch_count 0
zk_ephemerals_count 0
zk_approximate_data_size 27
zk_followers 4 - only exposed by the Leader
zk_synced_followers 4 - only exposed by the Leader
zk_pending_syncs 0 - only exposed by the Leader
zk_open_file_descriptor_count 23 - only available on Unix platforms
zk_max_file_descriptor_count 1024 - only available on Unix platforms
```
## Measurements:
#### Zookeeper measurements:
Meta:
- units: int64
- tags: `server=<hostname> port=<port> state=<leader|follower>`
Measurement names:
- zookeeper_avg_latency
- zookeeper_max_latency
- zookeeper_min_latency
- zookeeper_packets_received
- zookeeper_packets_sent
- zookeeper_outstanding_requests
- zookeeper_znode_count
- zookeeper_watch_count
- zookeeper_ephemerals_count
- zookeeper_approximate_data_size
- zookeeper_followers #only exposed by the Leader
- zookeeper_synced_followers #only exposed by the Leader
- zookeeper_pending_syncs #only exposed by the Leader
- zookeeper_open_file_descriptor_count
- zookeeper_max_file_descriptor_count
#### Zookeeper string measurements:
Meta:
- units: string
- tags: `server=<hostname> port=<port> state=<leader|follower>`
Measurement names:
- zookeeper_version
### Tags:
- All measurements have the following tags:
-