This page describes processes and requirements regarding Blockchain Node Engine upgrades and maintenance windows.
Node maintenance
Blockchain node maintenance occurs when the Blockchain Node Engine instance is updated. This includes:
- Upgrades of blockchain client software itself (e.g. an Ethereum upgrade)
- Updates to Blockchain Node Engine business logic. For example:
- New features
- Bug fixes
- Routine maintenance
- GKE cluster software updates
- Maintenance updates on the underlying infrastructure
Node downtime
Although it is not common, node upgrades can cause downtime from as little as a minute or less to up to 40 minutes. In some cases, the node pod itself does not need to be restarted and there is no downtime.
Maintenance windows
We plan to provide updates during regular windows as follows; however, there could also be unplanned urgent updates. We will provide as much notice as possible.
| Location | Day | Time | Expected downtime |
|---|---|---|---|
us-central1 |
First monday of each month (1) | 9 - 10AM PST | Minutes |
europe-west1 |
First monday of each month (1) | 10 - 11AM PST | Minutes |
asia-east1 |
First monday of each month (1) | 11AM - 12PM PST | Minutes |
|
(1) If it falls on a holiday, the next business day. |
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