Maintenance Window
Understanding your FluxNode’s maintenance window is vital to avoid missing confirmations and falling behind in the reward queue. The maintenance window is the maximum time your node has to “check in” (confirm) with the Flux blockchain before it is considered offline.
How It Works
How It Works
Flux block time: 2 minutes per block
Node confirmation interval: At least 120 blocks
A node “checks in” every time it confirms its status on-chain. If it fails to confirm within the maintenance window, it misses its slot and drops to the back of the queue.
Manual Calculation
Retrieve the current block height from any Flux explorer or via RPC:
flux-cli getblockcountRetrieve your node’s last confirmed block height (via logs or FluxNodeView).
Plug into the formula:
RemainingWindowMinutes = (120 - (currentBlockHeight - lastConfirmedHeight)) × 2The result is the number of minutes left before your node must confirm again.
Example:
Current height: 1500
Last confirmed: 1430
Difference: 70 blocks
Remaining window: (120 - 70) × 2 = 100 minutes
Tools for Real-Time Maintenance Window
You don’t need to calculate manually—use one of these utilities:
Tool
Command / URL
Notes
FluxNodeView (CLI)
bash -i <(curl -s https://raw.githubusercontent.com/JKTUNING/Flux-Node-Tools/main/flux_node_viewer.sh) node
Displays maintenance window in the "Nodes" section.
FluxNode App
https://fluxnode.app.runonflux.io/#/nodes
Enter wallet address to view all nodes’ maintenance data.
Telegram Bot
@fluxstats_bot /mw <yourWalletAddress>
Returns maintenance windows for your wallet’s nodes.
🔄 If you manage multiple nodes, FluxNode App and Telegram Bot are ideal for a consolidated view.
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