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Visualization and monitoring solutions  /  Monitor Varnish Cache
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Monitor Varnish Cache easily with Grafana

Easily monitor your deployment of Varnish Cache, an open source web application accelerator, with Grafana Cloud’s out-of-the-box monitoring solution. The Grafana Cloud forever-free tier includes 3 users and up to 10k metrics series to support your monitoring needs.

Varnish Cache overview (overview)
Varnish Cache overview (overview)
Varnish Cache overview (logs)
Varnish Cache overview (logs)

Key metrics included

up
varnish_backend_beresp_bodybytes
varnish_backend_beresp_hdrbytes
varnish_main_backend_busy
varnish_main_backend_conn
varnish_main_backend_recycle
varnish_main_backend_req
varnish_main_backend_reuse
varnish_main_backend_unhealthy
varnish_main_cache_hit
varnish_main_cache_hitpass
varnish_main_cache_miss
varnish_main_client_req
varnish_main_n_expired
varnish_main_n_lru_nuked
varnish_main_pools
varnish_main_s_resp_bodybytes
varnish_main_s_resp_hdrbytes
varnish_main_sessions
varnish_main_sessions_total
varnish_main_thread_queue_len
varnish_main_threads
varnish_main_threads_created
varnish_main_threads_failed
varnish_main_threads_limited
varnish_sma_g_bytes
varnish_sma_g_space

Key alerting rules included

VarnishCacheLowCacheHitRate (Warning)
VarnishCacheHighMemoryUsage (Warning)
VarnishCacheHighCacheEvictionRate (Critical)
VarnishCacheHighSaturation (Warning)
VarnishCacheSessionsDropping (Critical)
VarnishCacheBackendUnhealthy (Critical)