Hi, Although all the points are true, the features (metrics, statistics) provided in Ignite are not a replacement for tracing. Tracing is a functionality that lets users evaluate in real time why an operation takes longer. The current implementation may not be the best, but I am convinced that the real reason is that it has not been maintained for a long time. What I mean is not that we should keep the OpenCensus API, but that we need to plan how to implement new tracing, because there is no real substitute for it in Ignite.
Vladislav Pyatkov On Thu, Jul 9, 2026, 3:55 PM Mikhail Petrov <[email protected]> wrote: > Igniters, > > I would like to initiate a discussion on the deprecation and removal of > Ignite 2 Tracing. > > *Motivation* > > Ignite Tracing was introduced to provide distributed tracing capabilities > for Apache Ignite. However, over time several issues have become apparent: > > 1. Ignite Tracing is based on OpenCensus, which has been deprecated and is > no longer maintained. [1] > 2. The implementation has never reached production readiness. It is > difficult to configure and, in some scenarios, introduces significant > performance overhead. > 3. The tracing implementation handles asynchronous Ignite operations > poorly, making the resulting traces difficult to interpret. > 4. It is tightly coupled with the Communication and Discovery subsystems, > increasing their complexity and making maintenance and refactoring more > difficult. > 5. Ignite Tracing has not received active maintenance for more than three > years. > > Before proceeding with removal, I would like to ask whether anyone is > aware of production deployments or real-world users who rely on Ignite > Tracing. > Such feedback would help us better assess the impact of its removal. > > > *Alternatives* > > Apache Ignite already provides several actively maintained mechanisms for > monitoring: > > 1. Ignite Performance Statistics [2] [3] > 2. Ignite Metric System [4] > 3. Ignite System Views [5] > > The aforementioned mechanisms are actively maintained and serve as the > primary means of monitoring Ignite. > > Regards, > Mikhail. > > [1] https://opentelemetry.io/blog/2023/sunsetting-opencensus > [2] > https://ignite.apache.org/docs/ignite2/latest/monitoring-metrics/performance-statistics > [3] > https://ignite.apache.org/docs/ignite2/latest/extensions-and-integrations/performance-statistics#print-statistics > [4] > https://ignite.apache.org/docs/ignite2/latest/monitoring-metrics/new-metrics-system > [5] > https://ignite.apache.org/docs/ignite2/latest/monitoring-metrics/system-views > > > > >
