Logging has been dramatically extended from Webcampak 2.x. In this section of the document, we will details logs and emphasis on why reviewing and understanding logs is relevant.
Logs files do not take a vast amount of physical space, so we decided to build it into most of the processing done by Webcampak and log almost everything. Some logs are there for auditing purposes, others can be especially useful in configuration stages to understand what is happening under the hood.
All configuration changes are logged, this lets users understand who changed what, when. This provides users with the ability to rollback to previous configuration settings.
Most actions are taken automatically by Webcampak when it captures and manipulates pictures are logged. Those logs provide timed events, not only the date and time but also the time it took to run some actions.
The most relevant value in capture logs is the overall capture time (20.7s in the below capture). It gives an idea on the maximum capture rate to be supported by the system.
2017-02-24 14:50:33,864 (INFO) Webcampak : capture.run(): Capture: Overall capture time: 20752 ms
2017-02-24 14:50:21,508 (INFO) Webcampak : captureUtils.generateHotlinks(): Hotlink File: /home/webcampak/webcampak/sources/source1/live/webcam-1920x1280.jpg 2017-02-24 14:50:27,157 (INFO) Webcampak : pictureTransformations.resize(): Resized picture to 1920x1280 in 5646 ms