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---
title: Logging
---
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Comprehensive logging messages help you confirm system configuration and debug problems in configuration and code.
- **[How <%=vars.product_name%> Logging Works](how_logging_works.html)**
<%=vars.product_name_long%> uses Apache Log4j 2 as the basis for its logging system.
- **[Understanding Log Messages and Their Categories](logging_categories.html)**
System logging messages typically pertain to startup; logging management; connection and system membership; distribution; or cache, region, and entry management.
- **[Naming, Searching, and Creating Log Files](logging_whats_next.html)**
The best way to manage and understand the logs is to have each member log to its own files.
- **[Set Up Logging](setting_up_logging.html)**
You configure logging in a member's `gemfire.properties` or at startup with `gfsh`.
- **[Advanced Users—Configuring Log4j 2 for <%=vars.product_name%>](configuring_log4j2.html)**
Basic <%=vars.product_name%> logging configuration is configured via the gemfire.properties file. This topic is intended for advanced users who need increased control over logging due to integration with third-party libraries.