Agent metrics questions

[druchoo]

Many metrics are reporting 0. Some are expected but some not. For example cache.queries, I wouldn't expect that to be 0. What is cache.checkpointTime and cache.metrics? Why are some of the *.active metrics 0 when they are enabled in the config?

[lomik]

I will try to add a description of metrics in the documentation soon.

In brief:

• cache.queries - requests from graphite-web via "carbonlink" per minute. May be disabled in your graphite-web
• cache.checkpointTime - every minute cache reorder "save_to_persister" queue. Your cache size small - checkpoint very fast. This is float value - could be rounded to zero in your dashboard.
• cache.metrics - metrics in cache (graphs)
• cache.size - points in cache (one metric can have more than one point in cache)
• *.active - Count of currently established tcp connections to pickle or tcp receiver. Your -1 value may be bug :(

[druchoo]

Ok makes sense now. Thanks for clarification.