Article ID: kb00096Last Modified: 22-Aug-2024
Error 503 Server Unavailable
| Description | Value |
|---|---|
| Issue ID | 503 (external) |
| Issue Class | Error |
Issue Description
A backup plan fails with the following error message:
Error Message: The remote server returned an error: (503) Server Unavailable
The 503 Server Unavailable error is a code response which means that a target server cannot process the request. This error may occur due to several reasons:
- a target server is down for maintenance
- a target server is currently overloaded.
Resolve The Issue
Note that MSP360 (CloudBerry) Backup for Windows automatically handles these errors with retries. Below are log record examples:
2020-01-23 08:42:44,492 [Base] [8] ERROR - Request failed, retrying in 400 msec, 3 attempts left
CloudBerryLab.Base.Exceptions.RequestRateLimitException
The remote server returned an error: (503) Server Unavailable.
2020-01-23 08:42:44,961 [Base] [8] ERROR - Request failed, retrying in 800 msec, 2 attempts left
CloudBerryLab.Base.Exceptions.RequestRateLimitException
The remote server returned an error: (503) Server Unavailable.
2020-01-23 08:42:45,821 [Base] [8] ERROR - Request failed, retrying in 1600 msec, 1 attempts left
CloudBerryLab.Base.Exceptions.RequestRateLimitException
The remote server returned an error: (503) Server Unavailable
In case a target server is still unavailable, a backup plan fails. In most cases, these errors are on the storage side.
To Resolve the Issue
Try one of the following options:
- Run the backup plan later
- Contact your cloud storage provider support team regarding possible problems on their side