## Broker Information

version:
uptime: ?
status:
clients online

Number of currently connected clients. Topic: `$SYS/broker/clients/connected`

clients online
?
clients total

The total number of online and offline client sessions currently connected and registered on the broker. Topic: `$SYS/broker/clients/total`

clients total
?
clients expired

The number of disconnected persistent clients that have been expired and removed through the `persistent_client_expiration` option. Topic: `$SYS/broker/clients/expired`

clients expired
?
clients offline

The total number of persistent client sessions (with clean session disabled) that are registered at the broker but are currently disconnected. Topic: `$SYS/broker/clients/disconnected`

clients offline
?
max simultaneous clients

The maximum number of clients that have been connected to the broker at the same time. Topic: `$SYS/broker/clients/maximum`

max simultaneous clients
?
socket connections

Number of open socket connections on the broker. Topic: `$SYS/broker/connections/socket/count`

connection sockets
?
total subscriptions

The total number of subscriptions active on the broker. Topic: `$SYS/broker/subscriptions/count`

total subscriptions
?
messages published to the broker

The total number of PUBLISH messages received since the broker started. Topic: `$SYS/broker/publish/messages/received`

messages published to the broker
?
messages published by the broker

The total number of PUBLISH messages sent since the broker started. Topic: `$SYS/broker/publish/messages/sent`

messages published by the broker
?
publishes dropped

The total number of publish messages that have been dropped due to inflight/queuing limits. See the `max_inflight_messages` and `max_queued_messages` options in mosquitto.conf for more information. Topic: `$SYS/broker/publish/messages/dropped`

publishes dropped
?
messages retained

The total number of retained messages active on the broker. Topic: `$SYS/broker/retained messages/count`

messages retained
?
messages stored

The number of messages currently held in the message store. This includes retained messages and messages queued for durable clients. Topic: `$SYS/broker/store/messages/count`

messages stored
?
messages dropped
online clients
offline clients
messages sent
messages received
messages sent per minute
messages received per minute

### Published vs Received Messages Total

### Publish vs Received Messages Rates

### System Metrics

$SYS/broker/clients/total ?
$SYS/broker/clients/disconnected ?
$SYS/broker/clients/connected ?
$SYS/broker/clients/maximum ?
$SYS/broker/clients/expired ?
$SYS/broker/subscriptions/count ?
$SYS/broker/shared_subscriptions/count ?
$SYS/broker/heap/current ?
$SYS/broker/heap/maximum ?
$SYS/broker/connections/socket/count ?

### Traffic Metrics

$SYS/broker/load/messages/received/1min ?
$SYS/broker/load/messages/received/10min ?
$SYS/broker/load/messages/received/15min ?
$SYS/broker/load/messages/sent/1min ?
$SYS/broker/load/messages/sent/10min ?
$SYS/broker/load/messages/sent/15min ?
$SYS/broker/messages/stored ?
$SYS/broker/retained messages/count ?
$SYS/broker/messages/received ?
$SYS/broker/messages/sent ?
$SYS/broker/store/messages/bytes ?
$SYS/broker/bytes/received ?
$SYS/broker/bytes/sent ?
$SYS/broker/publish/bytes/received ?
$SYS/broker/publish/bytes/sent ?
$SYS/broker/publish/messages/dropped ?
$SYS/broker/publish/messages/received ?
$SYS/broker/publish/messages/sent ?
$SYS/broker/packet/out/count ?
$SYS/broker/packet/out/bytes ?

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