A key feature when monitoring and debugging any Cloud infrastructure is to provide the ability to trace, track, and collate all the individual, discrete steps that compose an event. A typical resource action in OpenStack is often a combination of smaller tasks -- which given the distributed nature of OpenStack -- can fail at unpredictable points in the workflow. By collecting the appropriate event
![Work with V8 memory leaks](https://cdn-ak-scissors.b.st-hatena.com/image/square/fee75d4f0df13f6ae15284ca976cfce70f9678a9/height=288;version=1;width=512/https%3A%2F%2Fcdn.slidesharecdn.com%2Fss_thumbnails%2Fpdfleaks-150529092321-lva1-app6892-thumbnail.jpg%3Fwidth%3D640%26height%3D640%26fit%3Dbounds)