Logging¶

Cloud Failover Extension logs to /var/log/restnoded/restnoded.log. The logging level is set in the controls class with possible values of silly, verbose, debug, info, warning, and error. The default value is info. This controls object is sent via a POST /declare.

{
    "controls": {
        "class": "Controls",
        "logLevel": "info"
    }
}

You can see an example of a full declaration in Example Declarations.

Example log entries for different levels¶

Silly¶

The silly value logs everything. Silly level is recommended for troubleshooting/debugging as it will log all the events in the systems including retries to API REST calls.

Thu, 19 Dec 2019 19:39:26 GMT - info: [f5-cloud-failover] Setting controls log level
Thu, 19 Dec 2019 19:39:26 GMT - info: [f5-cloud-failover] Global logLevel set to 'silly'
Thu, 19 Dec 2019 19:39:26 GMT - finest: [f5-cloud-failover] Modifying existing data group f5-cloud-failover-state with body{...}
Thu, 19 Dec 2019 19:39:26 GMT - info: [f5-cloud-failover] Successfully wrote Failover trigger scripts to filesystem
Thu, 19 Dec 2019 19:39:26 GMT - info: [f5-cloud-failover] Performing failover - init
Thu, 19 Dec 2019 19:39:26 GMT - fine: [f5-cloud-failover] config: {}
Thu, 19 Dec 2019 19:39:26 GMT - finest: [f5-cloud-failover] Storage Account Information: {...}
Thu, 19 Dec 2019 19:39:26 GMT - info: [f5-cloud-failover] Successfully wrote Failover trigger scripts to filesystem

Info¶

The info value will log information and errors.

Thu, 19 Dec 2019 19:39:26 GMT - info: [f5-cloud-failover] Setting controls log level
Thu, 19 Dec 2019 19:39:26 GMT - info: [f5-cloud-failover] Global logLevel set to 'info'
Thu, 19 Dec 2019 19:39:26 GMT - info: [f5-cloud-failover] Successfully wrote Failover trigger scripts to filesystem
Thu, 19 Dec 2019 19:39:26 GMT - info: [f5-cloud-failover] Performing failover - init
Thu, 19 Dec 2019 19:39:26 GMT - info: [f5-cloud-failover] Successfully wrote Failover trigger scripts to filesystem

Error¶

The error value will log only errors.

Thu, 19 Dec 2019 19:39:26 GMT - info: [f5-cloud-failover] Global logLevel set to 'error'
Thu, 19 Dec 2019 19:41:26 GMT - error: [f5-cloud-failover] uploadDataToStorage error: {...}

Note

To provide feedback on Cloud Failover Extension or this documentation, you can file a GitHub Issue.

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