DCF Module Tracing

Availability

This feature is available since MogDB 5.0.0.

Introduction

In order to solve the problem that MogDB is difficult to debug when running with errors, MogDB 5.0 introduces the ability to trace calls to the DCF (Distributed Consensus Framework) module.

DCF is a key module within MogDB that handles tasks such as data consistency and cluster management in a distributed environment. The operation of this module is very important for troubleshooting and problem localization when MogDB experiences a failure or error.

Benefits

When a fault or error occurs, debuggers can view the trace log to get the specific operation of MogDB when calling DCF modules, including the call path, call parameters, call return value, etc.. These details allow in-depth analysis of the cause of the failure and quick localization of the problem. In addition, MogDB 5.0 also provides some debugging tools and commands for analyzing and interpreting trace logs. These tools help debuggers understand and process trace logs more efficiently, speeding up troubleshooting and repair. By supporting the ability to trace calls to DCF modules, MogDB 5.0 provides debuggers with more accurate and valuable information to help them solve problems when MogDB runs wrong. This not only improves debugging efficiency, but also enhances the stability and reliability of MogDB.

Description

This feature is an enhancement to the gstrace tool. It supports specifying gstrace to trace one or more functions defined by DCF in advance. Through the gstrace dump command to obtain the user-specified time period, the module has traced the execution path of the function (call stack mode display), as well as tracing the function of the key data or data structure specific information. Through this method, you can get more targeted tracing results, quickly locate the problem and improve diagnostic efficiency.

Constraints

DCF mode needs to be enabled, i.e. set the enable_dcf parameter value to on.