HiveMQ integration metrics

The official Datadog integration for monitoring HiveMQ. It collects 245 metrics.

Definitions as of 2026-04-01

Official summary

Monitor your HiveMQ clusters.

Metric types

gauge (value at a point in time): 181
count (occurrences in the interval): 64

Metrics

Descriptions are the official definitions, unedited.

Metric	Type	Unit
`hivemq.cache.payload_persistence.average_load_penalty`Cache statistic capturing the average load penalty of the payload persistence cache	gauge	-
`hivemq.cache.payload_persistence.eviction_count`Cache statistic capturing the eviction count of the payload persistence cache	gauge	-
`hivemq.cache.payload_persistence.hit_count`Cache statistic capturing the hit count of the payload persistence cache	gauge	hit
`hivemq.cache.payload_persistence.hit_rate`Cache statistic capturing the hit rate of the payload persistence cache	gauge	-
`hivemq.cache.payload_persistence.load_count`Cache statistic capturing the load count of the payload persistence cache	gauge	-
`hivemq.cache.payload_persistence.load_exception_count`Cache statistic capturing the load exception count of the payload persistence cache	gauge	-
`hivemq.cache.payload_persistence.load_exception_rate`Cache statistic capturing the load exception rate of the payload persistence cache	gauge	-
`hivemq.cache.payload_persistence.load_success_count`Cache statistic capturing the load success count of the payload persistence cache	gauge	-
`hivemq.cache.payload_persistence.miss_count`Cache statistic capturing the miss count of the payload persistence cache	gauge	-
`hivemq.cache.payload_persistence.miss_rate`Cache statistic capturing the miss rate of the payload persistence cache	gauge	-
`hivemq.cache.payload_persistence.request_count`Cache statistic capturing the request count of the payload persistence cache	gauge	-
`hivemq.cache.payload_persistence.total_load_time`Cache statistic capturing the total load time of the payload persistence cache	gauge	-
`hivemq.cache.shared_subscription.average_load_penalty`Cache statistic capturing the average load penalty of the shared subscription cache	gauge	-
`hivemq.cache.shared_subscription.eviction_count`Cache statistic capturing the eviction count of the shared subscription cache	gauge	-
`hivemq.cache.shared_subscription.hit_count`Cache statistic capturing the hit count of the shared subscription cache	gauge	-
`hivemq.cache.shared_subscription.hit_rate`Cache statistic capturing the hit rate of the shared subscription cache	gauge	-
`hivemq.cache.shared_subscription.load_count`Cache statistic capturing the load count of the shared subscription cache	gauge	-
`hivemq.cache.shared_subscription.load_exception_count`Cache statistic capturing the load exception count of the shared subscription cache	gauge	-
`hivemq.cache.shared_subscription.load_exception_rate`Cache statistic capturing the load exception rate of the shared subscription cache	gauge	-
`hivemq.cache.shared_subscription.load_success_count`Cache statistic capturing the load success count of the shared subscription cache	gauge	-
`hivemq.cache.shared_subscription.miss_count`Cache statistic capturing the miss count of the shared subscription cache	gauge	-
`hivemq.cache.shared_subscription.miss_rate`Cache statistic capturing the miss rate of the shared subscription cache	gauge	-
`hivemq.cache.shared_subscription.request_count`Cache statistic capturing the request count of the shared subscription cache	gauge	-
`hivemq.cache.shared_subscription.total_load_time`Cache statistic capturing the total load time of the shared subscription cache	gauge	-
`hivemq.cluster.name_request.retry.count`Counts the amount of retry until a name for a node via it's address is resolved	count	-
`hivemq.cpu_cores.licensed`Holds the maximum amount of cpu cores allowed by license	gauge	-
`hivemq.cpu_cores.used`Holds the current amount of cpu cores used	gauge	-
`hivemq.extension.managed_executor.running`Measures the current count of running jobs in the ManagedExtensionExecutor	count	-
`hivemq.extension.managed_executor.scheduled.overrun`Measures the current count of jobs in the ManagedExtensionExecutor that are overrun	count	-
`hivemq.extension.managed_executor.scheduled.percent_of_period.50th_percentile`Measures how many percent of the scheduled period the ManagedExtensionExecutorService jobs lasted	gauge	-
`hivemq.extension.managed_executor.scheduled.percent_of_period.75th_percentile`Measures how many percent of the scheduled period the ManagedExtensionExecutorService jobs lasted	gauge	-
`hivemq.extension.managed_executor.scheduled.percent_of_period.95th_percentile`Measures how many percent of the scheduled period the ManagedExtensionExecutorService jobs lasted	gauge	-
`hivemq.extension.managed_executor.scheduled.percent_of_period.98th_percentile`Measures how many percent of the scheduled period the ManagedExtensionExecutorService jobs lasted	gauge	-
`hivemq.extension.managed_executor.scheduled.percent_of_period.999th_percentile`Measures how many percent of the scheduled period the ManagedExtensionExecutorService jobs lasted	gauge	-
`hivemq.extension.managed_executor.scheduled.percent_of_period.99th_percentile`Measures how many percent of the scheduled period the ManagedExtensionExecutorService jobs lasted	gauge	-
`hivemq.extension.managed_executor.scheduled.percent_of_period.count`Measures how many percent of the scheduled period the ManagedExtensionExecutorService jobs lasted	count	-
`hivemq.extension.managed_executor.scheduled.percent_of_period.max`Measures how many percent of the scheduled period the ManagedExtensionExecutorService jobs lasted	gauge	-
`hivemq.extension.managed_executor.scheduled.percent_of_period.mean`Measures how many percent of the scheduled period the ManagedExtensionExecutorService jobs lasted	gauge	-
`hivemq.extension.managed_executor.scheduled.percent_of_period.min`Measures how many percent of the scheduled period the ManagedExtensionExecutorService jobs lasted	gauge	-
`hivemq.extension.managed_executor.scheduled.percent_of_period.snapshot_size`Measures how many percent of the scheduled period the ManagedExtensionExecutorService jobs lasted	gauge	-
`hivemq.extension.managed_executor.scheduled.percent_of_period.std_dev`Measures how many percent of the scheduled period the ManagedExtensionExecutorService jobs lasted	gauge	-
`hivemq.extension.services.publish_service_publishes`Counts the amount of publish messages sent by the publish service.	count	-
`hivemq.extension.services.publish_service_publishes_to_client`Counts the amount of publish messages sent by the publish service to a specific client.	count	-
`hivemq.extension.services.rate_limit_exceeded.count`Counts the amount of times that the extension service rate limit was exceeded.	count	-
`hivemq.keep_alive.disconnect.count`Counts every closed connection that was closed because the client missed sending PINGREQ message during the keep-alive interval	count	-
`hivemq.messages.dropped.count`Counts every dropped message.	count	-
`hivemq.messages.dropped.internal_error.count`Counts PUBLISH messages that have been dropped, because of an internal error.	count	-
`hivemq.messages.dropped.message_too_large.count`Counts PUBLISH messages that have been dropped, because the message size was too large for the client	count	-
`hivemq.messages.dropped.mqtt_packet_too_large.count`Counts MQTT messages (except PUBLISH) that have been dropped, because the message size was too large for the client.	count	-
`hivemq.messages.dropped.not_writable.count`Counts PUBLISH messages that have been dropped, because the socket for the client was not writable (only QoS 0).	count	-
`hivemq.messages.dropped.publish_inbound_intercepted.count`Counts PUBLISH messages that have been dropped, because a Publish Inbound Interceptor prevented onward delivery.	count	-
`hivemq.messages.dropped.qos_0_memory_exceeded.count`Counts PUBLISH messages that have been dropped, because the global memory limit for QoS 0 messages has been exceeded.	count	-
`hivemq.messages.dropped.queue_full.count`Counts PUBLISH messages that have been dropped, because the message queue for a disconnected persistent session client was full.	count	-
`hivemq.messages.expired_messages`Counts every expired message	count	-
`hivemq.messages.incoming.auth.count`Counts every incoming MQTT AUTH message	count	-
`hivemq.messages.incoming.connect.count`Counts every incoming MQTT CONNECT message	count	-
`hivemq.messages.incoming.connect.mqtt3.count`Counts every incoming MQTT 3 CONNECT message	count	-
`hivemq.messages.incoming.connect.mqtt5.count`Counts every incoming MQTT 5 CONNECT message	count	-
`hivemq.messages.incoming.disconnect.count`Counts every incoming MQTT DISCONNECT message	count	-
`hivemq.messages.incoming.pingreq.count`Counts every incoming MQTT PINGREQ message	count	-
`hivemq.messages.incoming.puback.count`Counts every incoming MQTT PUBACK message	count	-
`hivemq.messages.incoming.pubcomp.count`Counts every incoming MQTT PUBCOMP message	count	-
`hivemq.messages.incoming.publish.bytes.50th_percentile`Measures the distribution of incoming MQTT message size (including MQTT packet headers)	gauge	-
`hivemq.messages.incoming.publish.bytes.75th_percentile`Measures the distribution of incoming MQTT message size (including MQTT packet headers)	gauge	-
`hivemq.messages.incoming.publish.bytes.95th_percentile`Measures the distribution of incoming MQTT message size (including MQTT packet headers)	gauge	-
`hivemq.messages.incoming.publish.bytes.98th_percentile`Measures the distribution of incoming MQTT message size (including MQTT packet headers)	gauge	-
`hivemq.messages.incoming.publish.bytes.999th_percentile`Measures the distribution of incoming MQTT message size (including MQTT packet headers)	gauge	-
`hivemq.messages.incoming.publish.bytes.99th_percentile`Measures the distribution of incoming MQTT message size (including MQTT packet headers)	gauge	-
`hivemq.messages.incoming.publish.bytes.count`Measures the distribution of incoming MQTT message size (including MQTT packet headers)	count	-
`hivemq.messages.incoming.publish.bytes.max`Measures the distribution of incoming MQTT message size (including MQTT packet headers)	gauge	-
`hivemq.messages.incoming.publish.bytes.mean`Measures the distribution of incoming MQTT message size (including MQTT packet headers)	gauge	-
`hivemq.messages.incoming.publish.bytes.min`Measures the distribution of incoming MQTT message size (including MQTT packet headers)	gauge	-
`hivemq.messages.incoming.publish.bytes.snapshot_size`Measures the distribution of incoming MQTT message size (including MQTT packet headers)	gauge	-
`hivemq.messages.incoming.publish.bytes.std_dev`Measures the distribution of incoming MQTT message size (including MQTT packet headers)	gauge	-
`hivemq.messages.incoming.publish.count`Counts every incoming MQTT PUBLISH message	count	-
`hivemq.messages.incoming.pubrec.count`Counts every incoming MQTT PUBREC message	count	-
`hivemq.messages.incoming.pubrel.count`Counts every incoming MQTT PUBREL message	count	-
`hivemq.messages.incoming.subscribe.count`Counts every incoming MQTT SUBSCRIBE message	count	-
`hivemq.messages.incoming.total.bytes.50th_percentile`Measures the size distribution of incoming MQTT messages (including MQTT packet headers)	gauge	-
`hivemq.messages.incoming.total.bytes.75th_percentile`Measures the size distribution of incoming MQTT messages (including MQTT packet headers)	gauge	-
`hivemq.messages.incoming.total.bytes.95th_percentile`Measures the size distribution of incoming MQTT messages (including MQTT packet headers)	gauge	-
`hivemq.messages.incoming.total.bytes.98th_percentile`Measures the size distribution of incoming MQTT messages (including MQTT packet headers)	gauge	-
`hivemq.messages.incoming.total.bytes.999th_percentile`Measures the size distribution of incoming MQTT messages (including MQTT packet headers)	gauge	-
`hivemq.messages.incoming.total.bytes.99th_percentile`Measures the size distribution of incoming MQTT messages (including MQTT packet headers)	gauge	-
`hivemq.messages.incoming.total.bytes.count`Measures the size distribution of incoming MQTT messages (including MQTT packet headers)	count	-
`hivemq.messages.incoming.total.bytes.max`Measures the size distribution of incoming MQTT messages (including MQTT packet headers)	gauge	-
`hivemq.messages.incoming.total.bytes.mean`Measures the size distribution of incoming MQTT messages (including MQTT packet headers)	gauge	-
`hivemq.messages.incoming.total.bytes.min`Measures the size distribution of incoming MQTT messages (including MQTT packet headers)	gauge	-
`hivemq.messages.incoming.total.bytes.snapshot_size`Measures the size distribution of incoming MQTT messages (including MQTT packet headers)	gauge	-
`hivemq.messages.incoming.total.bytes.std_dev`Measures the size distribution of incoming MQTT messages (including MQTT packet headers)	gauge	-
`hivemq.messages.incoming.total.count`Counts every incoming MQTT message	count	-
`hivemq.messages.incoming.unsubscribe.count`Counts every incoming MQTT UNSUBSCRIBE message	count	-
`hivemq.messages.outgoing.auth.count`Counts every outgoing MQTT AUTH message	count	-
`hivemq.messages.outgoing.connack.count`Counts every outgoing MQTT CONNACK message	count	-
`hivemq.messages.outgoing.disconnect.count`Counts every outgoing MQTT DISCONNECT message	count	-
`hivemq.messages.outgoing.pingresp.count`Counts every outgoing MQTT PINGRESP message	count	-
`hivemq.messages.outgoing.puback.count`Counts every outgoing MQTT PUBACK message	count	-
`hivemq.messages.outgoing.pubcomp.count`Counts every outgoing MQTT PUBCOMP message	count	-
`hivemq.messages.outgoing.publish.bytes.50th_percentile`Measures the size distribution of outgoing MQTT messages (including MQTT packet headers)	gauge	-
`hivemq.messages.outgoing.publish.bytes.75th_percentile`Measures the size distribution of outgoing MQTT messages (including MQTT packet headers)	gauge	-
`hivemq.messages.outgoing.publish.bytes.95th_percentile`Measures the size distribution of outgoing MQTT messages (including MQTT packet headers)	gauge	-
`hivemq.messages.outgoing.publish.bytes.98th_percentile`Measures the size distribution of outgoing MQTT messages (including MQTT packet headers)	gauge	-
`hivemq.messages.outgoing.publish.bytes.999th_percentile`Measures the size distribution of outgoing MQTT messages (including MQTT packet headers)	gauge	-
`hivemq.messages.outgoing.publish.bytes.99th_percentile`Measures the size distribution of outgoing MQTT messages (including MQTT packet headers)	gauge	-
`hivemq.messages.outgoing.publish.bytes.count`Measures the size distribution of outgoing MQTT messages (including MQTT packet headers)	count	-
`hivemq.messages.outgoing.publish.bytes.max`Measures the size distribution of outgoing MQTT messages (including MQTT packet headers)	gauge	-
`hivemq.messages.outgoing.publish.bytes.mean`Measures the size distribution of outgoing MQTT messages (including MQTT packet headers)	gauge	-
`hivemq.messages.outgoing.publish.bytes.min`Measures the size distribution of outgoing MQTT messages (including MQTT packet headers)	gauge	-
`hivemq.messages.outgoing.publish.bytes.snapshot_size`Measures the size distribution of outgoing MQTT messages (including MQTT packet headers)	gauge	-
`hivemq.messages.outgoing.publish.bytes.std_dev`Measures the size distribution of outgoing MQTT messages (including MQTT packet headers)	gauge	-
`hivemq.messages.outgoing.publish.count`Counts every outgoing MQTT PUBLISH message	count	-
`hivemq.messages.outgoing.pubrec.count`Counts every outgoing MQTT PUBREC message	count	-
`hivemq.messages.outgoing.pubrel.count`Counts every outgoing MQTT PUBREL message	count	-
`hivemq.messages.outgoing.suback.count`Counts every outgoing MQTT SUBACK message	count	-
`hivemq.messages.outgoing.total.bytes.50th_percentile`Measures the size distribution of outgoing MQTT messages (including MQTT packet headers)	gauge	-
`hivemq.messages.outgoing.total.bytes.75th_percentile`Measures the size distribution of outgoing MQTT messages (including MQTT packet headers)	gauge	-
`hivemq.messages.outgoing.total.bytes.95th_percentile`Measures the size distribution of outgoing MQTT messages (including MQTT packet headers)	gauge	-
`hivemq.messages.outgoing.total.bytes.98th_percentile`Measures the size distribution of outgoing MQTT messages (including MQTT packet headers)	gauge	-
`hivemq.messages.outgoing.total.bytes.999th_percentile`Measures the size distribution of outgoing MQTT messages (including MQTT packet headers)	gauge	-
`hivemq.messages.outgoing.total.bytes.99th_percentile`Measures the size distribution of outgoing MQTT messages (including MQTT packet headers)	gauge	-
`hivemq.messages.outgoing.total.bytes.count`Measures the size distribution of outgoing MQTT messages (including MQTT packet headers)	count	-
`hivemq.messages.outgoing.total.bytes.max`Measures the size distribution of outgoing MQTT messages (including MQTT packet headers)	gauge	-
`hivemq.messages.outgoing.total.bytes.mean`Measures the size distribution of outgoing MQTT messages (including MQTT packet headers)	gauge	-
`hivemq.messages.outgoing.total.bytes.min`Measures the size distribution of outgoing MQTT messages (including MQTT packet headers)	gauge	-
`hivemq.messages.outgoing.total.bytes.snapshot_size`Measures the size distribution of outgoing MQTT messages (including MQTT packet headers)	gauge	-
`hivemq.messages.outgoing.total.bytes.std_dev`Measures the size distribution of outgoing MQTT messages (including MQTT packet headers)	gauge	-
`hivemq.messages.outgoing.total.count`Counts every outgoing MQTT message	count	-
`hivemq.messages.outgoing.unsuback.count`Counts every outgoing MQTT UNSUBACK message	count	-
`hivemq.messages.pending.qos_0.count`The current number of pending qos 0 messages	gauge	-
`hivemq.messages.pending.total.count`The current number of pending messages total	gauge	-
`hivemq.messages.queued.count`The current number of queued messages	gauge	-
`hivemq.messages.retained.current`The current amount of retained messages	gauge	-
`hivemq.messages.retained.mean.50th_percentile`Metrics about the mean payload-size of retained messages in bytes	gauge	-
`hivemq.messages.retained.mean.75th_percentile`Metrics about the mean payload-size of retained messages in bytes	gauge	-
`hivemq.messages.retained.mean.95th_percentile`Metrics about the mean payload-size of retained messages in bytes	gauge	-
`hivemq.messages.retained.mean.98th_percentile`Metrics about the mean payload-size of retained messages in bytes	gauge	-
`hivemq.messages.retained.mean.999th_percentile`Metrics about the mean payload-size of retained messages in bytes	gauge	-
`hivemq.messages.retained.mean.99th_percentile`Metrics about the mean payload-size of retained messages in bytes	gauge	-
`hivemq.messages.retained.mean.count`Metrics about the mean payload-size of retained messages in bytes	count	-
`hivemq.messages.retained.mean.max`Metrics about the mean payload-size of retained messages in bytes	gauge	-
`hivemq.messages.retained.mean.mean`Metrics about the mean payload-size of retained messages in bytes	gauge	-
`hivemq.messages.retained.mean.min`Metrics about the mean payload-size of retained messages in bytes	gauge	-
`hivemq.messages.retained.mean.snapshot_size`Metrics about the mean payload-size of retained messages in bytes	gauge	-
`hivemq.messages.retained.mean.std_dev`Metrics about the mean payload-size of retained messages in bytes	gauge	-
`hivemq.messages.retained.pending.total.count`The current number of pending retained messages total	gauge	-
`hivemq.messages.retained.queued.count`The current number of queued retained messages	gauge	-
`hivemq.networking.bytes.read.current`The current (last 5 seconds) amount of read bytes	gauge	-
`hivemq.networking.bytes.read.total`The total amount of read bytes	gauge	-
`hivemq.networking.bytes.write.current`The current (last 5 seconds) amount of written bytes	gauge	-
`hivemq.networking.bytes.write.total`Total amount of written bytes	gauge	-
`hivemq.networking.connections.current`The current total number of active MQTT connections	gauge	-
`hivemq.networking.connections.mean.50th_percentile`The mean total number of active MQTT connections	gauge	-
`hivemq.networking.connections.mean.75th_percentile`The mean total number of active MQTT connections	gauge	-
`hivemq.networking.connections.mean.95th_percentile`The mean total number of active MQTT connections	gauge	-
`hivemq.networking.connections.mean.98th_percentile`The mean total number of active MQTT connections	gauge	-
`hivemq.networking.connections.mean.999th_percentile`The mean total number of active MQTT connections	gauge	-
`hivemq.networking.connections.mean.99th_percentile`The mean total number of active MQTT connections	gauge	-
`hivemq.networking.connections.mean.count`The mean total number of active MQTT connections	count	-
`hivemq.networking.connections.mean.max`The mean total number of active MQTT connections	gauge	-
`hivemq.networking.connections.mean.mean`The mean total number of active MQTT connections	gauge	-
`hivemq.networking.connections.mean.min`The mean total number of active MQTT connections	gauge	-
`hivemq.networking.connections.mean.snapshot_size`The mean total number of active MQTT connections	gauge	-
`hivemq.networking.connections.mean.std_dev`The mean total number of active MQTT connections	gauge	-
`hivemq.networking.connections_closed.graceful.count`Counts clients which disconnected after sending a DISCONNECT Message	count	-
`hivemq.networking.connections_closed.total.count`Counts all clients which disconnected from HiveMQ (= graceful + ungraceful)	count	-
`hivemq.networking.connections_closed.ungraceful.count`Counts clients which disconnected without sending a DISCONNECT Message	count	-
`hivemq.overload_protection.clients.average_credits`Holds the average amount of available credits between all clients	gauge	-
`hivemq.overload_protection.clients.backpressure_active`Holds the current amount of clients for which backpressure is applied by overload protection	gauge	-
`hivemq.overload_protection.clients.using_credits`Holds the current amount of clients having less than the full amount of credits	gauge	-
`hivemq.overload_protection.credits.per_tick`Holds the current amount of credits a client receives per tick	gauge	-
`hivemq.overload_protection.level`Holds the current level of overload protection	gauge	-
`hivemq.payload_persistence.cleanup_executor.running`Counts tasks that are currently running in the scheduler in charge of the cleanup of the persistence payload	count	-
`hivemq.payload_persistence.cleanup_executor.scheduled.overrun`Counts the periodic tasks which ran longer then their time frame allowed in the scheduler in charge of the cleanup of the persistence payload	count	-
`hivemq.payload_persistence.cleanup_executor.scheduled.percent_of_period.50th_percentile`Metrics about how much percent of their allowed time frame periodic tasks used while running the cleanup of the persistence payload	gauge	-
`hivemq.payload_persistence.cleanup_executor.scheduled.percent_of_period.75th_percentile`Metrics about how much percent of their allowed time frame periodic tasks used while running the cleanup of the persistence payload	gauge	-
`hivemq.payload_persistence.cleanup_executor.scheduled.percent_of_period.95th_percentile`Metrics about how much percent of their allowed time frame periodic tasks used while running the cleanup of the persistence payload	gauge	-
`hivemq.payload_persistence.cleanup_executor.scheduled.percent_of_period.98th_percentile`Metrics about how much percent of their allowed time frame periodic tasks used while running the cleanup of the persistence payload	gauge	-
`hivemq.payload_persistence.cleanup_executor.scheduled.percent_of_period.999th_percentile`Metrics about how much percent of their allowed time frame periodic tasks used while running the cleanup of the persistence payload	gauge	-
`hivemq.payload_persistence.cleanup_executor.scheduled.percent_of_period.99th_percentile`Metrics about how much percent of their allowed time frame periodic tasks used while running the cleanup of the persistence payload	gauge	-
`hivemq.payload_persistence.cleanup_executor.scheduled.percent_of_period.count`Metrics about how much percent of their allowed time frame periodic tasks used while running the cleanup of the persistence payload	count	-
`hivemq.payload_persistence.cleanup_executor.scheduled.percent_of_period.max`Metrics about how much percent of their allowed time frame periodic tasks used while running the cleanup of the persistence payload	gauge	-
`hivemq.payload_persistence.cleanup_executor.scheduled.percent_of_period.mean`Metrics about how much percent of their allowed time frame periodic tasks used while running the cleanup of the persistence payload	gauge	-
`hivemq.payload_persistence.cleanup_executor.scheduled.percent_of_period.min`Metrics about how much percent of their allowed time frame periodic tasks used while running the cleanup of the persistence payload	gauge	-
`hivemq.payload_persistence.cleanup_executor.scheduled.percent_of_period.snapshot_size`Metrics about how much percent of their allowed time frame periodic tasks used while running the cleanup of the persistence payload	gauge	-
`hivemq.payload_persistence.cleanup_executor.scheduled.percent_of_period.std_dev`Metrics about how much percent of their allowed time frame periodic tasks used while running the cleanup of the persistence payload	gauge	-
`hivemq.persistence.executor.client_session.tasks`Current amount of disk I/O tasks that are enqueued by the client session persistence	gauge	-
`hivemq.persistence.executor.noempty_queues`Current amount of single writer task queues that are not empty	gauge	-
`hivemq.persistence.executor.outgoing_message_flow.tasks`Current amount of disk I/O tasks that are enqueued by the outgoing message flow persistence	gauge	-
`hivemq.persistence.executor.queue_misses`Current count of loops that all single writer threads have done without executing a task	count	-
`hivemq.persistence.executor.queued_messages.tasks`Current amount of disk I/O tasks that are enqueued by the queued messages persistence	gauge	-
`hivemq.persistence.executor.request_event_bus.tasks`Current amount of tasks that are enqueued by the request event bus	gauge	-
`hivemq.persistence.executor.retained_messages.tasks`Current amount of disk I/O tasks that are enqueued by the retained message persistence	gauge	-
`hivemq.persistence.executor.running.threads`Current amount of threads that are executing disk I/O tasks	gauge	-
`hivemq.persistence.executor.subscription.tasks`Current amount of disk I/O tasks that are enqueued by the subscription persistence	gauge	-
`hivemq.persistence.executor.total.tasks`Current amount of disk I/O tasks that are enqueued by all persistence executors	gauge	-
`hivemq.persistence.payload_entries.count`Holds the current amount of payloads stored in the payload persistence	gauge	-
`hivemq.persistence.removable_entries.count`Holds the current amount of payloads stored in the payload persistence, that can be removed by the cleanup	gauge	-
`hivemq.persistence_executor.running`Counts tasks that are currently running in the persistence executor	count	-
`hivemq.persistence_scheduled_executor.running`Counts tasks that are currently running in the scheduler responsible for persistence	count	-
`hivemq.persistence_scheduled_executor.scheduled.overrun`Counts the periodic tasks which ran longer then their time frame allowed in the scheduler responsible for persistence	count	-
`hivemq.persistence_scheduled_executor.scheduled.percent_of_period.50th_percentile`Metrics about how much percent of their allowed time frame periodic tasks used in the scheduler responsible for persistence	gauge	-
`hivemq.persistence_scheduled_executor.scheduled.percent_of_period.75th_percentile`Metrics about how much percent of their allowed time frame periodic tasks used in the scheduler responsible for persistence	gauge	-
`hivemq.persistence_scheduled_executor.scheduled.percent_of_period.95th_percentile`Metrics about how much percent of their allowed time frame periodic tasks used in the scheduler responsible for persistence	gauge	-
`hivemq.persistence_scheduled_executor.scheduled.percent_of_period.98th_percentile`Metrics about how much percent of their allowed time frame periodic tasks used in the scheduler responsible for persistence	gauge	-
`hivemq.persistence_scheduled_executor.scheduled.percent_of_period.999th_percentile`Metrics about how much percent of their allowed time frame periodic tasks used in the scheduler responsible for persistence	gauge	-
`hivemq.persistence_scheduled_executor.scheduled.percent_of_period.99th_percentile`Metrics about how much percent of their allowed time frame periodic tasks used in the scheduler responsible for persistence	gauge	-
`hivemq.persistence_scheduled_executor.scheduled.percent_of_period.count`Metrics about how much percent of their allowed time frame periodic tasks used in the scheduler responsible for persistence	count	-
`hivemq.persistence_scheduled_executor.scheduled.percent_of_period.max`Metrics about how much percent of their allowed time frame periodic tasks used in the scheduler responsible for persistence	gauge	-
`hivemq.persistence_scheduled_executor.scheduled.percent_of_period.mean`Metrics about how much percent of their allowed time frame periodic tasks used in the scheduler responsible for persistence	gauge	-
`hivemq.persistence_scheduled_executor.scheduled.percent_of_period.min`Metrics about how much percent of their allowed time frame periodic tasks used in the scheduler responsible for persistence	gauge	-
`hivemq.persistence_scheduled_executor.scheduled.percent_of_period.snapshot_size`Metrics about how much percent of their allowed time frame periodic tasks used in the scheduler responsible for persistence	gauge	-
`hivemq.persistence_scheduled_executor.scheduled.percent_of_period.std_dev`Metrics about how much percent of their allowed time frame periodic tasks used in the scheduler responsible for persistence	gauge	-
`hivemq.publish.without_matching_subscribers`Counts the amount of publish messages received, without any matching subscribers	count	-
`hivemq.qos_0_memory.exceeded.per_client`Holds the current amount of clients that exceeded their QoS 0 message memory	gauge	-
`hivemq.qos_0_memory.max`Holds the maximum amount of bytes QoS 0 messages may use in memory	gauge	-
`hivemq.qos_0_memory.used`Holds the current amount of bytes QoS 0 messages use in memory	gauge	-
`hivemq.sessions.overall.current`Measures the current count of stored sessions. These sessions include all sessions, including online and offline clients	gauge	-
`hivemq.sessions.persistent.active`Measures the current count of active persistent sessions (= Online MQTT clients which are connected with cleanSession=false).	count	-
`hivemq.single_writer_executor.running`Counts tasks that are currently running in the scheduler responsible for single-writer	count	-
`hivemq.subscriptions.overall.current`Measures the current count of subscriptions on the broker	count	-
`hivemq.system.max_file_descriptor`Maximum allowed amount of file descriptors as seen by the JVM	gauge	-
`hivemq.system.open_file_descriptor`Amount of open file descriptors as seen by the JVM	gauge	-
`hivemq.system.os.file_descriptors.max`Maximum allowed amount of file descriptors	gauge	-
`hivemq.system.os.file_descriptors.open`Amount of currently open file descriptors	gauge	-
`hivemq.system.os.global.memory.available`The amount of physical memory currently available, in bytes	gauge	-
`hivemq.system.os.global.memory.swap.total`The current size of the paging/swap file(s), in bytes	gauge	-
`hivemq.system.os.global.memory.swap.used`The current memory committed to the paging/swap file(s), in bytes	gauge	-
`hivemq.system.os.global.memory.total`The amount of actual physical memory, in bytes	gauge	-
`hivemq.system.os.global.uptime`OS Uptime in seconds	gauge	-
`hivemq.system.os.process.disk.bytes_read`Number of bytes the HiveMQ process has read from disk	gauge	-
`hivemq.system.os.process.disk.bytes_written`Number of bytes the HiveMQ process has written to disk	gauge	-
`hivemq.system.os.process.memory.resident_set_size`Resident Set Size (RSS) in bytes. It is used to show how much memory is allocated to the HiveMQ process and is in RAM. It does not include memory that is swapped out. It does include memory from shared libraries as long as the pages from those libraries are actually in memory. It does include all stack and heap memory	gauge	-
`hivemq.system.os.process.memory.virtual`Virtual Memory Size (VSZ) in bytes. It includes all memory that the HiveMQ process can access, including memory that is swapped out and memory that is from shared libraries	gauge	-
`hivemq.system.os.process.threads.count`Number of threads of the HiveMQ process as seen by the OS	gauge	-
`hivemq.system.os.process.time_spent.kernel`Amount of milliseconds the HiveMQ process has executed in kernel/system mode as seen by the OS	gauge	-
`hivemq.system.os.process.time_spent.user`Amount of milliseconds the the HiveMQ process has executed in user mode as seen by the OS	gauge	-
`hivemq.system.physical_memory.free`Current amount of free physical memory in bytes	gauge	-
`hivemq.system.physical_memory.total`Total amount of physical memory (bytes) available	gauge	-
`hivemq.system.process_cpu.load`Current CPU usage for the JVM process (0.0 idle - 1.0 full CPU usage)	gauge	-
`hivemq.system.process_cpu.time`Total amount of CPU time the JVM process has used to this point(in nanoseconds)	gauge	-
`hivemq.system.swap_space.free`Current amount of free swap space in bytes	gauge	-
`hivemq.system.swap_space.total`Total amount of swap space available in bytes	gauge	-
`hivemq.system.system_cpu.load`Current CPU usage for the whole system (0.0 idle - 1.0 full CPU usage)	gauge	-
`hivemq.topic_alias.count.total`Holds the current amount of topic aliases	gauge	-
`hivemq.topic_alias.memory.usage`Holds the current amount of bytes topic aliases use in memory	gauge	-

Official documentation

Official documentation for the HiveMQ integration

Metric names and descriptions are the official Datadog integration definitions (Copyright Datadog, Inc., BSD-3-Clause), reproduced unedited. The full license terms are on the About page.

Official summary

Metric types

Metrics

Official documentation

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