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[tracecompass-dev] Example use of Tracecompass for Gerrit logs analysis

Hi all,
I thought that this audience would be interested about a success story that my team had with using Tracecompass lately. 

The scenario was a service outage of a Gerrit instance. Tracecompass allowed us to easily aggregate data from an upstream reverse-proxy and Gerrit. With this data in hand, and using custom filters as well as XML analysis, we traced-back to two causes for the outage. The first one was found while producing a graph of the duration that our server spent on honouring requests over time, per user (refer to figure 1). This graph allowed to establish that specific users were causing steep peaks in resource usage. The second cause was found while custom-parsing gigabytes of log data, and lead us to identify specific log statements that only happened during the outage (refer to figure 2).


Figure 1

Figure 2

Claudia Dallaire

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