Help Center/ MapReduce Service/ Component Operation Guide (Normal)/ Using Hue (MRS 3.x or Later)/ Hue Log Overview
Updated on 2022-09-15 GMT+08:00
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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 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.
  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"}