MRS-operation-guide-lts/doc/component-operation-guide-lts/source/using_hue/hue_log_overview.rst

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Hue Log Overview

Log Description

Log paths: The default paths of Hue logs are /var/log/Bigdata/hue (for storing run logs) and /var/log/Bigdata/audit/hue (for storing audit logs).

Log archive rules: The automatic compression and archiving function of the Hue logs is enabled. By default, when the size of a log file (access.log, error.log, runcpserver.log, or hue-audits.log) exceeds 5 MB, logs are automatically compressed. A maximum of 20 latest compressed files are reserved. The number of compressed files and compression threshold can be configured.

Table 1 Hue log list

Type	Log File Name	Description
Run log	access.log	Access log file
	error.log	Error log file
	gsdb_check.log	Log file of the GaussDB check information
	kt_renewer.log	Log file of Kerberos authentication
	kt_renewer.out.log	Log file of the abnormal Kerberos authentication logs
	runcpserver.log	Log file of operation records
	runcpserver.out.log	Log file of process running exceptions
	supervisor.log	Log file of process startup
	supervisor.out.log	Log file of process startup exceptions
	dbDetail.log	Log file of database initialization
	initSecurityDetail.log	Download initialization log file of the Keytab file
	postinstallDetail.log	Work log file generated after the Hue service is installed
	prestartDetail.log	Prestart log file
	statusDetail.log	Log file of the Hue health status
	startDetail.log	Startup log
	get-hue-ha.log	Log file of the Hue HA status
	hue-ha-status.log	Log file of the Hue HA status monitoring
	get-hue-health.log	Log file of the Hue health status
	hue-health-check.log	Log file of the Hue health check
	hue-refresh-config.log	Log file of the Hue configuration update
	hue-script-log.log	Log file of the Hue operations on the Manager console
	hue-service-check.log	Log file of the Hue service status monitoring
	db_pwd.log	Log that records the changes of the password for Hue to connect to the DBService database
	modifyDBPwd_Date.log	-
	watch_config_update.log	Parameter update log file
Audit log	hue-audits.log	Audit log file

Log Level

Table 2 <mrs_01_0147__en-us_topic_0000001173789706_t85cf40d58c61438a8876c531c55d9f44> describes the log levels supported by Hue.

Levels of logs are ERROR, WARN, INFO, and DEBUG from the highest to the lowest priority. Run logs of equal or higher levels are recorded. The higher the specified log level, the fewer the logs recorded.

Table 2 Log levels

Level	Description
ERROR	Logs of this level record error information about system running.
WARN	Logs of this level record exception information about the current event processing.
INFO	Logs of this level record normal running status information about the system and events.
DEBUG	Logs of this level record the system information and system debugging information.

To modify log levels, perform the following operations:

1. Go to the All Configurations page of the Hue service by referring to Modifying Cluster Service Configuration Parameters <mrs_01_1293>.
2. In the navigation tree on the left, select Log corresponding to the role to be modified.
3. Select the log level to be changed on the right.
4. Save the configuration. In the displayed dialog box, click OK to make the configurations take effect.
5. Restart the service or instance whose configuration has expired for the configuration to take effect.

Log Format

The following table lists the Hue log formats:

Table 3 Log formats

Type	Format	Example
Run log	<dd-MM-yy HH:mm:ss,SSS><Location where the log event occurs><Log level><Message in the log>	[03/Nov/2014 11:57:19 ] middleware | INFO | Unloading MimeTypeJSFileFixStreamingMiddleware.
	<Log level><Time format><yyyy-MM-dd HH:mm:ss,SSS><Location where the log event occurs><Message in the log>	INFO : CST 2014-11-06 11:22:52 hue-ha-status.sh : update 4 <= 15:myHostName=10.0.0.250 ACTIVE=10.0.0.250
Audit log	<UserName><yyyy-MM-dd HH:mm:ss,SSS>< Audit operation description> <Resource parameter> <URL> <Whether to allow> <Audit operation> <IP address>	{"username": "admin", "eventTime": "2014-11-06 10:28:34", "operationText": "Successful login for user: admin", "service": "accounts", "url": "/accounts/login/", "allowed": true, "operation": "USER_LOGIN", "ipAddress": "10.0.0.250"}