Overview of MRS Cluster Logs

Log Description

MRS cluster logs are stored in the /var/log/Bigdata directory. The following table lists the log types.

**Table 1** Log types
Type	Description
Installation log	Installation logs record information about FusionInsight Manager, cluster, and service installation to help users locate installation errors.
Run logs	Run logs record the running track information, debugging information, status changes, potential problems, and error information generated during the running of services.
Audit logs	Audit logs record information about users' activities and operation instructions, which can be used to locate fault causes in security events and determine who are responsible for these faults.

The following table lists the MRS log directories.

**Table 2** Log directories
File Directory	Log Content
/var/log/Bigdata/audit	Component audit log.
/var/log/Bigdata/controller	Log collecting script log. Controller process log. Controller monitoring log.
/var/log/Bigdata/dbservice	DBService log.
/var/log/Bigdata/flume	Flume log.
/var/log/Bigdata/hbase	HBase log.
/var/log/Bigdata/hdfs	HDFS log.
/var/log/Bigdata/hive	Hive log.
/var/log/Bigdata/hetuengine	HetuEngine logs.
/var/log/Bigdata/httpd	HTTPD log.
/var/log/Bigdata/hue	Hue log.
/var/log/Bigdata/kerberos	Kerberos log.
/var/log/Bigdata/ldapclient	LDAP client log.
/var/log/Bigdata/ldapserver	LDAP server log.
/var/log/Bigdata/loader	Loader log.
/var/log/Bigdata/logman	logman script log management log.
/var/log/Bigdata/mapreduce	MapReduce log.
/var/log/Bigdata/nodeagent	NodeAgent log.
/var/log/Bigdata/okerberos	OMS Kerberos log.
/var/log/Bigdata/oldapserver	OMS LDAP log.
/var/log/Bigdata/metric_agent	MetricAgent run log.
/var/log/Bigdata/omm	oms: complex event processing log, alarm service log, HA log, authentication and authorization management log, and monitoring service run log of the omm server. oma: installation log and run log of the omm agent. core: dump log generated when the omm agent and the HA process are suspended.
/var/log/Bigdata/spark2x	Spark2x log.
/var/log/Bigdata/sudo	Log generated when the sudo command is executed by user omm.
/var/log/Bigdata/timestamp	Time synchronization management log.
/var/log/Bigdata/tomcat	Tomcat log.
/var/log/Bigdata/watchdog	Watchdog log.
/var/log/Bigdata/yarn	YARN log.
/var/log/Bigdata/zookeeper	ZooKeeper log.
/var/log/Bigdata/oozie	Oozie log.
/var/log/Bigdata/kafka	Kafka log.
/var/log/Bigdata/storm	Storm log.
/var/log/Bigdata/iotdb	IoTDB log.
/var/log/Bigdata/cdl	CDL log.
/var/log/Bigdata/upgrade	OMS upgrade log.
/var/log/Bigdata/update-service	Upgrade service log.
/var/log/Bigdata/patch	Patch log.

Run logs

Table 3 describes the running information recorded in run logs.

**Table 3** Running information
Run Log	Description
Installation preparation log	Records information about preparations for the installation, such as the detection, configuration, and feedback operation information.
Process startup log	Records information about the commands executed during the process startup.
Process startup exception log	Records information about exceptions during process startup, such as dependent service errors and insufficient resources.
Process run log	Records information about the process running track information and debugging information, such as function entries and exits as well as cross-module interface messages.
Process running exception log	Records errors that cause process running errors, for example, the empty input objects or encoding or decoding failure.
Process running environment log	Records information about the process running environment, such as resource status and environment variables.
Script logs	Records information about the script execution process.
Resource reclamation log	Records information about the resource reclaiming process.
Uninstallation clearing logs	Records information about operations performed during service uninstallation, such as directory deletion and execution time

Audit logs

Audit information recorded in audit logs includes FusionInsight Manager audit information and component audit information.

**Table 4** Audit information of FusionInsight Manager
Operation Type	Operation
User management	Creating a user Modifying a user Deleting a user Creating a user group Modifying a user group Deleting a user group Adding a role Modifying a role Deleting a role Changing a password policy Changing a password Resetting a password User login User logout Unlocking the screen Downloading the authentication credential Unauthorized operation Unlocking a user account Locking a user account Locking the screen Exporting user information Exporting a user group Exporting a role
Cluster	Starting a cluster Stopping a cluster Restarting a cluster Performing a rolling restart of a cluster Restarting all expired instances Saving configurations Synchronizing cluster configurations Customizing cluster monitoring indicators Configuring monitoring dumping Saving monitoring thresholds Downloading a client configuration file Configuring the northbound Syslog interface Configuring the northbound SNMP API Clearing alarm through SNMP Adding a trap target through SNMP Deleting a trap target through SNMP Checking alarms through SNMP Synchronizing alarms through SNMP Creating a threshold template Deleting a threshold template Applying a threshold template Saving cluster monitoring configuration data Exporting configuration data Importing cluster configuration data Exporting an installation template Modifying a threshold template Canceling the application of a threshold template Masking alarms Sending an alarm Changing the OMS database password Resetting the component database password Restarting OMM and Controller Starting the health check of a cluster Importing a certificate file Configuring SSO information Deleting historical health check reports Modifying cluster attributes Running maintenance commands in synchronous mode Running maintenance commands in asynchronous mode Customizing report monitoring indicators Exporting report monitoring data Runing a command using SNMP in asynchronous mode Restarting the Web service Customizing monitoring indicators for static resource pools Exporting monitoring data of a static resource pool Customizing dashboard monitoring metrics Stopping a task Restoring configurations Modifying domain and mutual trust configurations Modifying system parameters Making a cluster enter the maintenance mode Making a cluster exit the maintenance mode Making OMS enter the maintenance mode Making OMS exit the maintenance mode Exiting the maintenance mode in batches Modifying OMS configurations Enabling threshold alarms Synchronizing all cluster configurations
Service	Starting a service Stopping a service Synchronizing service configurations Refreshing a service queue Customizing service monitoring indicators Restarting a service Performing a rolling restart of a service Exporting service monitoring data Importing service configuration data Starting the health check of a service Configuring the service Uploading a configuration file Downloading a configuration file Synchronizing instance configurations Commissioning an instance Decommissioning an instance Starting an instance Stopping an instance Customizing instance monitoring indicators Restarting an instance Performing a rolling restart of an instance Exporting instance monitoring data Importing instance configuration data Creating an instance group Modifying an instance group Deleting an instance group Moving an instance to another instance group Making a service enter the maintenance mode Making a service exit the maintenance mode Changing the display name of a service Modifying service association Downloading monitoring data Masking alarms Unmasking alarms Exporting report data of a service Adding custom parameters for a report Modifying custom parameters of a report Deleting custom parameters of a report Switching over controller nodes Adding a mount table Modifying a mount table
Host	Setting a node rack Starting all roles Stopping all roles Isolating a host Canceling host isolation Customizing host monitoring indicators Exporting host monitoring data Making a host enter the maintenance mode Making a host exit the maintenance mode Exporting basic host information Exporting host distribution report data Exporting host trend report data Exporting host cluster report data Exporting service report data Customizing host cluster monitoring metrics Customizing host trend monitoring metrics
Alarm	Exporting alarms Clearing alarms Exporting events Clearing alarms in batches
Log collection	Collecting log files Downloading log files Collecting service stack information Collecting instance stack information Preparing service stack information Preparing instance stack information Clearing service stack information Clearing instance stack information
Audit logs	Modifying audit dump configurations Exporting audit logs
Backup and restoration	Creating a backup task Executing a backup task Executing backup tasks in batches Stopping a backup task Deleting a backup task Modifying a backup task Locking a backup task Unlocking a backup task Creating a restoration task Executing a backup restoration task Stopping a restoration task Retrying a restoration task Deleting a restoration task
Multi-tenant management	Saving the static configuration Creating a tenant Deleting a tenant Associating a service with a tenant Deleting a service from a tenant Configuring resources Creating resources Deleting resources Adding a resource pool Modifying a resource pool Deleting a resource pool Restoring tenant data Modifying a tenant's global configurations Modifying queue configurations for a capacity scheduler Modifying queue configurations for a super scheduler Modifying resource distribution for a capacity scheduler Clearing resource distribution for a capacity scheduler Modifying resource distribution for a super scheduler Clearing resource distribution for a super scheduler Adding a resource catalog Modifying a resource catalog Deleting a resource catalog Customizing tenant monitoring metrics
Health check	Starting health check for a cluster Starting health check for a service Starting health check for a host Starting health check for OMS Starting health check for a system Updating health check configurations Exporting health check reports Exporting cluster health check results Exporting service health check results Exporting host health check results Deleting historical health check reports Exporting historical health check reports Downloading health check reports

**Table 5** Component audit information
Audit Log	Operation Type	Operation
CDL audit log	Service operation	Creating a link Deleting a link Creating a job Starting a job Deleting a job
IoTDB audit log	Maintenance management	Granting permissions Revoking permissions Recording authentication and login information
IoTDB audit log	Service operation	Deleting a time series, partition, function, or index Modifying a time series
ClickHouse audit log	Maintenance management	Granting permissions Revoking permissions Recording authentication and login information
ClickHouse audit log	Service operation	Creating a database or table Inserting, deleting, querying, and migrating data
DBService audit log	Maintenance management	Performing backup restoration operations
HBase audit log	Data definition language (DDL) statement	Creating a table Deleting a table Modifying a table Adding a column family Modifying a column family Deleting a column family Enabling a table Disabling a table Modify the user information Changing a password User login
	Data manipulation language (DML) statement	Putting data (to the hbase:meta, _ctmeta_, and hbase:acl tables) Deleting data (from the hbase:meta, _ctmeta_, and hbase:acl tables) Checking and putting data (to the hbase:meta, _ctmeta_, and hbase:acl tables) Checking and deleting data (from the hbase:meta, _ctmeta_, and hbase:acl tables)
	Permission control	Assigning permissions to a user Canceling permission assigning
HDFS audit log	Permissions management	Managing permissions on files or folders Managing permissions on owner information files or folders
HDFS audit log	File operation	Creating a folder Creating a file Opening a file Appending file content Changing a file name Deleting a file or folder Setting time property of a file Setting the number of file copies Merging files Checking the file system File links
Hive audit logs	Metadata operation	Defining metadata, such as creating databases and tables Deleting metadata, such as deleting databases and tables Modifying metadata, such as adding columns and renaming tables Importing and exporting metadata
	Data maintenance	Loading data to a table Inserting data into a table
	Permissions management	Creating or deleting roles Granting/Reclaiming roles Granting/Reclaiming permissions
Hue audit log	Service startup	Starting Hue
	User operation	User login User logout
	Task operation	Creating a job Modifying a job Deleting a job Submitting a task Saving a task Updating the status of a task
KrbServer audit log	Maintenance management	Changing the password of a Kerberos account Adding a Kerberos account Deleting a Kerberos account Authenticating a user
LdapServer audit log	Maintenance management	Adding an operating system user Adding a user group Adding a user to user group Deleting a user Deleting a group
Loader audit log	Security management	User login
	Metadata management	Querying connector information Querying a framework Querying step information
	Managing data source connections	Querying a data source connection Adding a data source connection Updating a data source connection Deleting a data source connection Activating a data source connection Disabling a data source connection
	Job management	Querying a job Creating a Job Updating a Job Deleting a job Activating a job Disabling a job Querying all execution records of a job Querying the latest execution record of a job Submitting a job Stopping a job
MapReduce audit log	Application running	Starting a Container request Stopping a Container request After Container request is completed, the status of the request is displayed as succeeded. After Container request is completed, the status of the request is displayed as failed. After Container request is completed, the status of the request is displayed as suspended. Submitting a task Ending a task
Oozie audit log	Task management	Submitting a task Starting a task Killing a task Suspending a task Resuming a task Re-running a task
Spark audit log	Metadata operation	Defining metadata, such as creating databases and tables Deleting metadata, such as deleting databases and tables Modifying metadata, such as adding columns and renaming tables Importing and exporting metadata
Spark audit log	Data maintenance	Loading data to a table Inserting data into a table
Storm audit log	Nimbus	Submitting a topology Stopping a topology Reallocating a topology Deactivating a topology Activating a topology
Storm audit log	UI	Stopping a topology Reallocating a topology Deactivating a topology Activating a topology
YARN audit log	Job submission	Submitting a job to a queue
ZooKeeper audit log	Permissions management	Setting the access permission to Znode
ZooKeeper audit log	Znode operation	Creating a Znode Deleting a Znode Configuring Znode data
HetuEngine audit log	Job management	Adding an external data source Deleting an external data source Modifying an external data source Creating a compute instance Starting a compute instance Stopping a compute instance Deleting a compute instance Querying a compute instance Modifying compute instance configurations

MRS audit logs are stored in the database. You can view and export audit logs on the Audit page.

The following table lists the directories to store component audit logs. Audit log files of some components are stored in /var/log/Bigdata/audit, such as HDFS, HBase, MapReduce, Hive, Hue, YARN, Storm, and ZooKeeper. The component audit logs are automatically compressed and backed up to /var/log/Bigdata/audit/bk at 03:00 every day. A maximum of latest 90 compressed backup files are retained, and the backup time cannot be changed.

Audit log files of other components are stored in the component log directory.

**Table 6** Directory for storing component audit logs
Component	Audit Log Directory
DBService	/var/log/Bigdata/audit/dbservice/dbservice_audit.log
HBase	/var/log/Bigdata/audit/hbase/hm/hbase-audit-hmaster.log /var/log/Bigdata/audit/hbase/hm/hbase-ranger-audit-hmaster.log /var/log/Bigdata/audit/hbase/rs/hbase-audit-regionserver.log /var/log/Bigdata/audit/hbase/rs/hbase-ranger-audit-regionserver.log /var/log/Bigdata/audit/hbase/rt/hbase-audit-restserver.log /var/log/Bigdata/audit/hbase/ts/hbase-audit-thriftserver.log
HDFS	/var/log/Bigdata/audit/hdfs/nn/hdfs-audit-namenode.log /var/log/Bigdata/audit/hdfs/nn/ranger-plugin-audit.log /var/log/Bigdata/audit/hdfs/dn/hdfs-audit-datanode.log /var/log/Bigdata/audit/hdfs/jn/hdfs-audit-journalnode.log /var/log/Bigdata/audit/hdfs/zkfc/hdfs-audit-zkfc.log /var/log/Bigdata/audit/hdfs/httpfs/hdfs-audit-httpfs.log /var/log/Bigdata/audit/hdfs/router/hdfs-audit-router.log
HetuEngine	/var/log/Bigdata/audit/hetuengine/hsbroker/hsbroker-audit.log.0 /var/log/Bigdata/audit/hetuengine/hsconsole/hsconsole-audit.log.0 /var/log/Bigdata/audit/hetuengine/hsfabric/hsfabric-audit.log.0 hdfs://hacluster/hetuserverhistory/Tenant name/coordinator/application_ID/container_ID/yyyyMMdd/hetuserver-engine-audit.log hdfs://hacluster/hetuserverhistory/Tenant name/coordinator or worker/application_ID/container_ID/yyyyMMdd/server.log
Hive	/var/log/Bigdata/audit/hive/hiveserver/hive-audit.log /var/log/Bigdata/audit/hive/hiveserver/hive-rangeraudit.log /var/log/Bigdata/audit/hive/metastore/metastore-audit.log /var/log/Bigdata/audit/hive/webhcat/webhcat-audit.log
Hue	/var/log/Bigdata/audit/hue/hue-audits.log
Kafka	/var/log/Bigdata/audit/kafka/audit.log
Loader	/var/log/Bigdata/loader/audit/default.audit
CDL	/var/log/Bigdata/audit/cdl/service/cdl-audit.log
MapReduce	/var/log/Bigdata/audit/mapreduce/jobhistory/mapred-audit-jobhistory.log
Oozie	/var/log/Bigdata/audit/oozie/oozie-audit.log
Spark2x	/var/log/Bigdata/audit/spark2x/jdbcserver/jdbcserver-audit.log /var/log/Bigdata/audit/spark2x/jdbcserver/ranger-audit.log /var/log/Bigdata/audit/spark2x/jobhistory/jobhistory-audit.log
Storm	/var/log/Bigdata/audit/storm/logviewer/audit.log /var/log/Bigdata/audit/storm/nimbus/audit.log /var/log/Bigdata/audit/storm/supervisor/audit.log /var/log/Bigdata/audit/storm/ui/audit.log
Yarn	/var/log/Bigdata/audit/yarn/rm/yarn-audit-resourcemanager.log /var/log/Bigdata/audit/yarn/rm/ranger-plugin-audit.log /var/log/Bigdata/audit/yarn/nm/yarn-audit-nodemanager.log
ZooKeeper	/var/log/Bigdata/audit/zookeeper/quorumpeer/zk-audit-quorumpeer.log
IoTDB	/var/log/Bigdata/audit/iotdb/iotdbserver/log_audit.log

Manager Logs

Log path: Manager log files are stored in /var/log/Bigdata/Manager by default.

ControllerService: /var/log/Bigdata/controller/ (OMS installation and run logs)
Httpd: /var/log/Bigdata/httpd (httpd installation and run logs)
logman: /var/log/Bigdata/logman (log packaging tool logs)
NodeAgent: /var/log/Bigdata/nodeagent (NodeAgent installation and run logs)
okerberos: /var/log/Bigdata/okerberos (okerberos installation and run logs)
oldapserver: /var/log/Bigdata/oldapserver (oldapserver installation and run logs)
MetricAgent: /var/log/Bigdata/metric_agent (MetricAgent run logs)
omm: /var/log/Bigdata/omm (omm installation and run logs)
timestamp: /var/log/Bigdata/timestamp (NodeAgent startup time logs)
tomcat: /var/log/Bigdata/tomcat (Web process logs)
Watchdog: /var/log/Bigdata/watchdog (watchdog logs)
Upgrade: /var/log/Bigdata/upgrade (OMS upgrade logs)
UpdateService: /var/log/Bigdata/update-service (upgrade service logs)
Sudo: /var/log/Bigdata/sudo (sudo script execution logs)
OS: /var/log/message file (OS system logs)
OS Performance: /var/log/osperf (OS performance statistics logs)
OS Statistics: /var/log/osinfo/statistics (OS parameter configuration logs)

Log archiving rules:

Manager logs are automatically compressed and archived. When a log file exceeds 10 MB in size, the file is automatically compressed by default. The file is named as follows after compression: <Original log name>-<yyyy-mm-dd_hh-mm-ss>.[ID].log.zip. A maximum of 20 latest compressed files are reserved.

**Table 7** Manager logs
Type	Log File Name	Description
Controller run log	controller.log	Log file that records component installation, upgrade, configuration, monitoring, alarm reporting, and routine O&M operations
	controller_client.log	Run log file of REST APIs
	acs.log	ACS run log file
	acs_spnego.log	spnego user log in ACS
	aos.log	AOS run log
	plugin.log	AOS plug-in log
	backupplugin.log	Log file that records backup and restoration operations
	controller_config.log	Configuration run log
	controller_nodesetup.log	Controller loading task log
	controller_root.log	System log of the Controller process
	controller_trace.log	Log that records the remote procedure call (RPC) communication between Controller and NodeAgent
	controller_monitor.log	Monitoring log
	controller_fsm.log	State machine log
	controller_alarm.log	Controller alarm log
	controller_backup.log	Controller backup and restoration log
	install.log, restore_package.log, installPack.log, distributeAdapterFiles.log, and install_os_optimization.log	OMS installation log
	oms_ctl.log	OMS startup and stop log
	preInstall_client.log	Preprocessing log file before client installation
	installntp.log	NTP installation log
	modify_manager_param.log	Manager parameter modification log
	backup.log	OMS backup script run log
	supressionAlarm.log	Alarm script run log
	om.log	OM certificate generation log
	backupplugin_ctl.log	Startup log of the backup and restoration plug-in process
	getLogs.log	Run log of the collection log script
	backupAuditLogs.log	Run log of the audit log backup script
	certStatus.log	Log that records regular certificate checks
	distribute.log	Certificate distribution log
	ficertgenetrate.log	Certificate replacement logs, including logs of level-2 certificates, CAS certificates, and httpd certificates
	genPwFile.log	Log that records the generation of certificate password files
	modifyproxyconf.log	Log that records the modification of the HTTPD proxy configuration
	importTar.log	Log that records the process of importing certificates into the trust library
Httpd	install.log	Httpd installation log
Httpd	access_log, error_log	Httpd run log
logman	logman.log	Log packaging tool log
NodeAgent	install.log, install_os_optimization.log	NodeAgent installation log
	installntp.log	NTP installation log
	start_ntp.log	NTP startup log
	ntpChecker.log	NTP check log
	ntpMonitor.log	NTP monitoring log
	heartbeat_trace.log	Log that records heartbeats between NodeAgent and Controller
	alarm.log	Alarm log
	monitor.log	Monitoring log
	nodeagent_ctl.log, start-agent.log	NodeAgent startup log
	agent.log	NodeAgent run log
	cert.log	Certificate log
	agentplugin.log	Agent plug-in running status monitoring log
	omaplugin.log	OMA plug-in run log
	diskhealth.log	Disk health check log
	supressionAlarm.log	Alarm script run log
	updateHostFile.log	Host list update log
	collectLog.log	Run log of the node log collection script
	host_metric_collect.log	Host index collection run log
	checkfileconfig.log	Run log file of file permission check
	entropycheck.log	Entropy check run log
	timer.log	Log of periodic node scheduling
	pluginmonitor.log	Component monitoring plug-in log
	agent_alarm_py.log	Log that records alarms upon insufficient NodeAgent file permission
okerberos	addRealm.log and modifyKerberosRealm.log	Realm handover log
	checkservice_detail.log	Okerberos health check log
	genKeytab.log	keytab generation log
	KerberosAdmin_genConfigDetail.log	Run log file of kadmin.conf generated during start of the kadmin process
	KerberosServer_genConfigDetail.log	Run log file of krb5kdc.conf generated during start of the krb5kdc process
	oms-kadmind.log	Run log of the kadmin process
	oms_kerberos_install.log and postinstall_detail.log	Okerberos installation log
	oms-krb5kdc.log	Run log of the krbkdc process
	start_detail.log	Okerberos startup log
	realmDataConfigProcess.log	Log file that records the rollback upon a realm handover failure
	stop_detail.log	Okerberos stop log
oldapserver	ldapserver_backup.log	Oldapserver backup log
	ldapserver_chk_service.log	Oldapserver health check log
	ldapserver_install.log	Oldapserver installation log
	ldapserver_start.log	Oldapserver startup log
	ldapserver_status.log	Log that records the status of the Oldapserver process
	ldapserver_stop.log	Oldapserver stop log
	ldapserver_wrap.log	Oldapserver service management log
	ldapserver_uninstall.log	Oldapserver uninstallation log
	restart_service.log	Oldapserver restart log
	ldapserver_unlockUser.log	Log file that records information about unlocking LDAP users and managing accounts
metric_agent	gc.log	MetricAgent JVM GC log file
	metric_agent.log	Run log file of MetricAgent
	metric_agent_qps.log	Log file that records MetricAgent Internal queue length and QPS information
	metric_agent_root.log	All run log files of MetricAgent
	start.log	Log file that records information about the MetricAgent startup and stop
omm	omsconfig.log	OMS configuration log
	check_oms_heartbeat.log	OMS heartbeat log
	monitor.log	OMS monitoring log
	ha_monitor.log	HA_Monitor operation log
	ha.log	HA operation log
	fms.log	Alarm log
	fms_ha.log	HA alarm monitoring log
	fms_script.log	Alarm control log
	config.log	Alarm configuration log
	iam.log	IAM log
	iam_script.log	IAM control log
	iam_ha.log	IAM HA monitoring log
	config.log	IAM configuration log
	operatelog.log	IAM operation log
	heartbeatcheck_ha.log	OMS heartbeat HA monitoring log
	install_oms.log	OMS installation log
	pms_ha.log	HA monitoring log
	pms_script.log	Monitoring control log
	config.log	Monitoring configuration log
	plugin.log	Monitoring plug-in run log
	pms.log	Monitoring log
	ha.log	HA run log
	cep_ha.log	CEP HA monitoring log
	cep_script.log	CEP control log
	cep.log	CEP log
	config.log	CEP configuration log
	omm_gaussdba.log	GaussDB HA monitoring log
	gaussdb-<SERIAL>.log	GaussDB run log
	gs_ctl-<DATE>.log	GaussDB control log archive log
	gs_ctl-current.log	GaussDB control log
	gs_guc-current.log	GaussDB operation log
	encrypt.log	Omm encryption log
	omm_agent_ctl.log	OMA control log
	oma_monitor.log	OMA monitoring log
	install_oma.log	OMA installation log
	config_oma.log	OMA configuration log
	omm_agent.log	OMA run log
	acs.log	ACS resource log
	aos.log	AOS resource log
	controller.log	Controller resource log
	floatip.log	Floating IP address resource log
	ha_ntp.log	NTP resource log
	httpd.log	Httpd resource log
	okerberos.log	Okerberos resource log
	oldap.log	OLdap resource log
	tomcat.log	Tomcat resource log
	send_alarm.log	Run log of the HA alarm sending script of the management node
	feed_watchdog.log	feed_watchdog resource log
timestamp	restart_stamp	NodeAgent start time log
tomcat	cas.log and localhost_access_cas_log.log	CAS run log
	catalina.log, catalina.out, host-manager.log, localhost.log, and manager.log	Tomcat run log
	localhost_access_web_log.log	Log that records the access to REST APIs of FusionInsight Manager
	web.log	Run log of the web process
	northbound_ftp_sftp.log and snmp.log	Northbound log
	perfStats.log	Performance statistics log file
watchdog	watchdog.log and feed_watchdog.log	watchdog run log
update-service	omm_upd_server.log	UPDServer run log file
	omm_upd_agent.log	UPDAgent run log file
	update-manager.log	UPDManager run log file
	install.log	Installation log file of the upgrade service
	uninstall.log	Uninstallation log file of the upgrade service
	catalina.<Time>.log, catalina.out, host-manager.<Time>.log, localhost.<Time>.log, manager.<Time>.log, manager_access_log.<Time>.txt, web_service_access_log.<Time>.txt, catalina.log, gc-update-service.log.0.current, update-manager.controller, update-web-service.controller, update-web-service.log, commit_rm_distributed.log, commit_rm_upload_package.log, common_omagent_operator.log, forbid_monitor.log, initialize_package_atoms.log, initialize_unzip_pack.log, omm-upd.log, register_patch_pack.log, resume_monitor.logrollback_clear_patch.log, unregister_patch_pack.log, update-rcommupd.log, update-rcupdatemanager.log, and update-service.log	Run log file of the upgrade service
upgrade	upgrade.log_<Time>	OMS upgrade log file
upgrade	rollback.log_<Time>	OMS rollback log file
sudo	sudo.log	Sudo script execution log

Log levels

Table 8 describes the log levels provided by Manager. The priority of log levels, from highest to lowest, is FATAL, ERROR, WARN, INFO, and DEBUG. Logs whose levels are higher than or equal to the set level are printed by the program. The number of printed logs decreases as the set log level increases.

**Table 8** Log Levels
Level	Description
FATAL	Logs of this level record fatal error information about the current event handling that may result in a system crash.
ERROR	Logs of this level record error information about the current event handling that indicates a system malfunction.
WARN	Logs of this level record abnormal information about the current event handling that does not cause the system to malfunction.
INFO	Logs of this level record normal status information about the system and events.
DEBUG	Logs of this level record system and its debugging information.

Log format

Manager log formats are as follows:

**Table 9** Log formats
Type	Component	Format	Example
Controller, HTTPd, Logman, NodeAgent, oKerberos, oldapserver, OMM, Tomcat, and upgrade	Controller, HTTPd, Logman, NodeAgent, oKerberos, oldapserver, OMM, Tomcat, and upgrade	<yyyy-MM-dd HH:mm:ss,SSS>\|<Log level>\|<Name of the thread that generates the log>\|<Message in the log>\|<Location where the log event occurs>	2020-06-30 00:37:09,067 INFO [pool-1-thread-1] Completed Discovering Node. com.xxx.hadoop.om.controller.tasks.nodesetup.DiscoverNodeTask.execute(DiscoverNodeTask.java:299)