[infinispan-issues] [JBoss JIRA] (ISPN-6833) Visualization and tracing of messages between nodes

Sebastian Łaskawiec created ISPN-6833: ----------------------------------------- Summary: Visualization and tracing of messages between nodes Key: ISPN-6833 URL: https://issues.jboss.org/browse/ISPN-6833 Project: Infinispan Issue Type: Feature Request Reporter: Sebastian Łaskawiec Note: There is a work in progress already happening: https://github.com/infinispan/infispector We know what kind of messages should be generated between nodes to perform specific operations - in theory -, still to debug problems of configuration or implementation on the whole stack (application + Infinispan + JGroups) we often need to look into the logs, having thousands of trace lines even when sampling for small periods of time. It would be very useful to have a way to automatically extrapolate the interesting patterns out of a running system, we could collect reliable information for example using (just ideas): * A custom JGroups protocol * Byteman to instrument JGroups for specific events (like network socket usage, or thresholds being reached in internal structures like resend tables or threadpool sizes) * Simple log file parsing The collected information could then be used to generate condensed reports highlighting the patterns being used in practice to compare them with expected patterns. I have two different kinds if output in mind: * A graphical visualization, showing the cluster nodes and a sequence of colored arrows showcasing what is being done * A short text representation, to be used by: ** automated tests to verify invariant expectations are not broken on code changes ** future possible tool to formally proof correctness / race conditions -- This message was sent by Atlassian JIRA (v6.4.11#64026)