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marcinbudny / eventstore_exporter

EventStoreDB (https://eventstore.com/eventstoredb/) metrics Prometheus exporter.
MIT License
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Stats from a single node only on EVS 5.0 #5

Closed ben-foster-cko closed 5 years ago

ben-foster-cko commented 5 years ago

Hi, I've deployed the exporter against a v5 cluster, running in cluster mode. However, I'm only seeing stats for a single member rather than all members, for example:

eventstore_process_cpu{instance="xxx:43644",job="evs-gwc",service="gateway-eventstore-exporter-qa"}

Shouldn't I see a metric for each member of the cluster or is the idea that we have to deploy an instance of the exporter pointing to each node?

marcinbudny commented 5 years ago

Hi. You have to deploy a separate instance of the exporter for each cluster node. The CLUSTER_MODE=cluster setting only tells the exporter to query the gossip stats endpoint. In single node deployment querying the gossip stats enpoint causes an error, so the CLUSTER_MODE variable is just a hint not to do that.