Intermittent Metrics Output

[ajcurated]

I've observed intermittent errors when collecting metrics. Metrics will disappear from the output, I seems to have remedied the issue by dropping the tick timer for Ethereum down to 60 from the default 600 but I couldn't see from the code why this was happening

Steps

• Run a node (either core or ecdsa)
• Enable metrics with default settings
• Scrape the /metrics endpoint

Expected

Consistent output for all metrics

Observed

Metrics periodically drop from output, specifically observed have been eth_connectivity and libp2p_info