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Aura Redis MongoDB Synchronizer metrics

List of metrics available in aura-redis-mongo-sync (ARMS)

aura_component_version

This metric is intended to store the number of aura-bot instances (pods) running each version of the code. It is stored as a Gauge in Prometheus.

Labels:

  • version: version field in the package.json file included in the running docker container.
  • component: name of the component that is writing the metric.

aura_server_unhandled_error

This metric is intended to store the number of unhandled errors happening in aura-redis-mongo-sync.

It is stored as a Counter in Prometheus.

Labels:

  • error: exception message that forced the unhandled error.

redis_mongo_sync_duration_milliseconds

This metric measures the data upload time from the service to the Mongo database.

It is stored as a Histogram in Prometheus. So every sample, besides the defined labels, also includes its duration.

The aura-redis-mongo-sync service contains a data collector that helps the event service move stale data from Redis to MongoDB. This collector sends the data in packets to optimize performance. This metric measures the time MongoDB takes to process the packet.

Labels:

  • status: HTTP status returned in the response. Values: success.
    • success: if the status is success, the time is stored.

redis_mongo_synced_items_total

This metric is intended to store the registers synchronized between Redis and MongoDB by events.

It is stored as a Counter in Prometheus.

Labels:

  • type: register type. Values: event, active_context
    • event: Items synchronized by event.
    • active_context: Items synchronized by active context process.

redis_mongo_synced_errors

This metric is intended to store the errors that have occurred in the synchronization.

It is stored as a Counter in Prometheus.

Labels:

  • error: Values : create, syncData, executeBulk.
    • create: If the error occurred when creating the service.
    • syncData: If the error occurred when synchronizing the data.
    • executeBulk: If the error occurred when uploading the data to MongoDB in bulk mode.

redis_mongo_sync_configuration_settings

This metric contains the service configuration data.

It is stored as a Gauge in Prometheus.

Labels:

  • setting_name: Values: shard_count, pod_count, active_context_ttl_seconds, redis_cache_ttl_seconds.
    • shard_count: Current shard used to distribute the data to synchronize between pods.
    • pod_count: Current number of services of aura-redis-mongo-sync.
    • active_context_ttl_seconds: Time interval to run the data collector.
    • redis_cache_ttl_seconds: Time in seconds that will be set to the context elements in the Redis cache.

services_status

This metric is intended to store the number of success or errored checks of modules of the server. It is stored as a Counter in Prometheus.

Labels:

  • moduleId: Id of the module.
  • status: OK or ERROR
Last modified October 9, 2025: feat: Improvements in operations, as how bot libraries are updated and what is evaluated for liveness probe. #AURA-30448 [RTM] (fb11aa8c)