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Canaries

In order to reduce the risk associated with deploying updates Solana Labs operates the validator software on canary nodes on mainnet-beta and testnet. The mainnet-beta nodes are non-voting. These nodes update themselves on a regular schedule.

Canary Host Dashboards Identity Cluster Channel Days between updates
mce1 edge-validator-us-sv15 Cluster System edge8WksfN71qYDJ1e4fCy2WfKg19fXU5zuztDi9uTM mainnet-beta edge 2
mce2 canary-am6-2 Cluster System mce2CKApCodefxDBUDWXCdBkqoh2dg1vpWJJX2qfuvV mainnet-beta edge 4
mce3 canary-da11-1 Cluster System mce3QKzeRNwk3TC6XfHTy5hdRT6u5UKm4rKQbNKkFhF mainnet-beta edge 8
mcb1 beta-validator-us-ny5 Cluster System betaVcnkBhHKaWx9o6LoSYrGaoDCskQLm94cUVWqDLS mainnet-beta beta 2
mcb2 canary-ny5-2 Cluster System mcb2qZRoYgy4bJkPRv6cBwLAAYow9ZsSzcrjJKprUnd mainnet-beta beta 4
mcs1 canary-am6-1 Cluster System mcs1kpUkWeqoruxWwtCskY1GGF4Bx1t3MMtHSHoSLyC mainnet-beta stable 2
mcs2 canary-ny5-1 Cluster System mcs2ZZa1vHhbUyfZ6ttHEGpFU6pib4pm4ownTxBm6Jc mainnet-beta stable 4
tce1 canary-sg1-1 Cluster System tce1TNB7pchMpM36eyzvttBDEwTczv86o5P2SS8dpSU testnet edge 4
tcb1 canary-sv15-1 Cluster System tcb1JYngtdwigQaJV6t13TJSnKuEPitpwoHS5TAYg1H testnet beta 4

The canaries update themselves every few days according to the schedule above. They should not be updated manually. The updates get the newest build for the given channel which is often not a tagged release.

These are handy commands to see what versions are currently running on each node:

solana gossip -um | grep -E " (edge|beta|mc[ebs]\d)"

solana gossip -ut | grep -E " (tc[eb]\d)"

Nodes update themselves when (number of days since 1970-01-01) mod (days between updates) is 0. Use this command (and the table above) to check when a node will update:

DAYS_BETWEEN_UPDATES=8; d=$(expr $(date +%s) / 86400 % $DAYS_BETWEEN_UPDATES); n=$(expr $DAYS_BETWEEN_UPDATES - $d); echo "Updated $d day(s) ago. Will update $n day(s) from now"

Alerts

Canaries are monitored by watchtower and alert in Slack #pager-duty-canary