Sensu Go Clustering and etcd performance

Sensu Go Migrating to Sensu Go
1

Planning to migrate from sensu core to sensu go here.
Not sure where to ask these questions, As my company is a not for profit company and we, therefore, need to keep costs low. We are planning to build from OSS.

  1. Building from open source will override the sensu-backend free 100 entities limit?
  2. Does the etcd performance is enough for sensu cluster with 2,500-3,000 agents?
  3. Etcd max database size limit is 8-10GB. Is it sufficient for this number of agents? PostgresSQL is only available to commercial versions only?

Thank you!

2

Hey!

So the first question is, yes the open source repo does not have the 100 entity limit.

Second and third question, while I haven’t personally stress tested either Sensu OSS or commercial in a while, my understanding is that yes etcd performance can be good enough for 3k agents with the right disk and network configuration. I think the important concern is making sure the etcd stores are using a fast SSD disk so etcd’s write to disk doesn’t become a bottleneck.

But you don’t have to take my word for it, the Sensu Inc. engineering team has made their perf testing tooling available: https://github.com/sensu/sensu-perf. You can modify those test scripts and perform your own perf testing. The loadit command used in the perf testing scripts to simulate a large number of agents is part of the OSS repo,

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