7.4.1 Types of log files

The following table lists and describes the types of log files that are managed by the EADS servers.

Table 7‒3: Types of log files (managed by EADS servers)
No.	Log file	Description
1	Message log file	This file is used to output message logs for checking operations and monitoring for errors. The messages logs are output by the EADS server or commands.
2	Exception log file	This file is used to output track traces required for investigating the causes of errors.
3	User message log file	This file is used to output information about the execution of user functions.
4	User exception log file	This file is used to output stack traces for exceptions that occur in user functions.
5	Cache-file operation log file	This file is used to output information needed for checking and monitoring cache data file usage status and compaction status.
6	Maintenance log file	This file is used by the system. There is no parameter to be specified by the user.
7	Distribution maintenance log file	This file is used by the system. No parameter specification by the user is required.
8	Statistics file	This file is used to output statistics used for evaluating tuning, measuring performance, and estimating resources.
9	Java log file	This file is used to output information about JavaVM's garbage collection (GC) and memory.
10	Thread dump	This file is used to output information about the threads running in Java processes.
11	Startup log file	This file is used to output log information when the `ezstart` command starts EADS servers. No parameter specification by the user is required.