Oracle Database is a multi-model database management system produced and marketed by Oracle Corporation.
Monitoring your OracleDB includes:

  • Determining relevant metrics according to your business needs. Create custom SQL metrics and apply to the database.
  • Track and analyze the monitoring metrics.
  • Check the availability of the database.


  • Database and port(1521) can be accessed by the gateway.
  • SELECT ANY DICTIONARY privilege to monitor the database. For more information, see Monitoring Privileges.
  • A gateway management profile mapped to a resource.
  • Create credentials with type Database before assigning a template to a resource. The Port, Connection Time Out, and Is Secure values are not used to create credentials.

Supported version

OracleDB version or higher.

Database discovery and monitoring

The administrator can deploy an agent or gateway to support OracleDB agent-based or agentless monitoring.

Discovery using the gateway

The gateway establishes a connection to the database using the Java Database Connectivity (JDBC) Java API and collects metrics using SQL queries. To monitor an OracleDB, install gateway version 5.0.0 or later.

Use one of the following mechanisms to discover OracleDB servers to add them to your inventory:

  • WMI
  • SSH
  • SNMP

Optionally, add a database server manually to the infrastructure inventory.

To add a resource manually to the inventory:

  1. Select Infrastructure.
  2. Click the Settings > Resource > Add.
  3. From the Add Device window, provide the required details such as Device Type and Management Profile.
  4. Click Save.

Prepare the device to start monitoring

To monitor OracleDB:

  1. Associate appropriate database credentials to the discovered database.
  2. Assign one or more database-specific global monitors or templates on the device.
    Optionally, create custom metrics or monitors using SQL queries and assign them to the database.

To track monitoring of OracleDB database in your cloud environment, see Monitoring Cloud Database using Gateway.

Global templates and metrics

Global templates

OracleDB Global Templates
Collector TypeTemplate Name
GatewayG2-OracleDB-Oracle Library Stats
G2-OracleDB-Oracle Library Stats - v2.0
G2-OracleDB-Oracle Memory
G2-OracleDB-Oracle Memory - v2.0
G2-OracleDB-Performance - v2.0
G2-OracleDB-Sessions - v2.0
G2-OracleDB-System Stats
G2-OracleDB-System Stats - v2.0
G2-OracleDB-System Summary
G2-OracleDB-System Summary - v2.0
G2-OracleDB-Table Space
G2-OracleDB-Table Space - v2.0

Global metrics

OracleDB Global Metrics
MetricMetric Display NameUnitDescription SessionscountMonitors the active sessions.
oracle.asm.archive.pctOracle ASM Archive pctpercentage(%)Oracle query for ASM ARCHIVE diskgroup. ASM Data pctpercentage(%)Oracle query for ASM DATA diskgroup.
oracle.blocking.lock.queriesOracle Blocking Lock QueriescountValidates the number of block lock queries on a specific database.
oracle.blocking.sessionOracle Blocking SessioncountTo monitor blocked valid sessions.
oracle.BufferCacheHitRatio.pctOracle BufferCacheHitRatio pctpercentage(%)To monitor buffer cache hit ratio value in percentage.
oracle.cache.blocks.lostCache Blocks LostcountThe number of global cache blocks lost over the user-defined observation period.
oracle.cache.invalidationsOracle Cache InvalidationscountValidates the number of cache invalidations on a specific database.
oracle.check.db.aliveCheck Db AliveMonitors database instance connectivity.
oracle.cpu.usage.per.secCPU Usage Per Secpersecond(psec)The CPU usage per second by the database processes measured in hundredths of a second.
oracle.cpu.usage.per.txnCPU Usage Per Txnpercentage(%)The amount of CPU usage per transaction for a specific task or session.
oracle.database.cpu.time.ratioDatabase CPU Time Ratiopercentage(%)The Database CPU Time Ratio is calculated by dividing the amount of used CPU in the database by the amount of total database time. Total database time is the time spent by the database on user-level calls .
oracle.database.wait.time.ratioDatabase Wait Time Ratiopercentage(%)Monitors the database wait time ratio.
oracle.db.instance.uptimeDB Instance UptimedaysThe db instance uptime since start up.
oracle.disk.sort.ratio.pctOracle Disk Sort Ratio pctpercentage(%)To monitor disk sort ratio value in percentage.
oracle.duplicated.filename.countOracle Duplicated Filename CountcountTo check the existence of duplicated db filenames in different ASM paths.
oracle.executions.per.secExecutions Per SecPersecond(psec)The average transactions per second
oracle.executions.per.txnExecutions Per TxnThe average amount of time per execution
oracle.failed.logon.countFailed Logon CountcountMonitors the failed logon attempts of the current user.
oracle.inactive.sessionsInactive SessionscountMonitors the inactive sessions.
oracle.invalid.objectsInvalid ObjectscountChecks for invalid objects in a database. Wait Timemilliseconds(ms)The total time taken to complete the I/O operations keeping the application in a blocked state. Pool Freemegabytes(MB)Monitors the free java pool memory in MB.
oracle.large.pool.freeLarge Pool Freemegabytes(MB)Monitors the free large pool memory in MB.
oracle.library.cache.getsOracle Library Cache GetscountValidates the number of library cache gets by the database.
oracle.library.cachereloadsLibrary Cache ReloadsValidates the number of library cache reloads by the database.
oracle.librarycachehitratio.pctOracle Library Cache Hit Ratio pctpercentage(%)To monitor the library cache hit ratio value in percentage.
oracle.logons.per.secLogons Per SeccountThe number of logons per second during the sample period.
oracle.long.running.queriesOracle Long Running QueriescountValidates the number of long running queries on a specific database.
oracle.maxdbfilepct.usageOracle Max DB File pct usagepercentage(%)To monitor the percentage of open oracle files.
oracle.maxopencursor.username.countOracle Max Open Cursor Username CountcountTo monitor maximum open cursor value for each db username.
oracle.process.countProcess CountMonitor the current processes running in the database.
oracle.procsused.pctOracle Processes Used pctpercentage(%)To monitor db process usage in percentage. RAC Tablespace Space Used Top 20 Greaterthan 85percentage(%)To monitor top(20) RAC tablespace space usage where percentage > 85%. Log Space RequestsReq per SecThe number of requests per second by Oracle waiting for disk space allocation for the redo log entries.
oracle.redolog.switch.countOracle Redolog Switch CountcountTo monitor the number of redolog switch.
oracle.sequence.pctusedOracle Sequence Pct Usedpercentage(%)To monitor the sequence usage in percentage.
oracle.session.cpu_usedSession Cpu Usedseconds(s)Monitors the session cpu usage in seconds.

Create custom metrics

To create a metric using SQL query for OracleDB monitoring, navigate to Monitoring > Metrics > Create Metric. For example, to create a metric to check the DB instance use:


For more information, see Manage Metrics.

Assign templates from setup

Assign OracleDB templates to one or more resources for a selected client and modify the configuration parameters while assigning templates. For more information, see Assign Templates from Setup.

Assign templates at the device level

Applying Oracle templates at the device level helps assign one or more templates to a specific resource. You can change the configuration parameter default values while assigning the templates. For more information, see Assign Templates at the Device Level.

Template configuration parameters:

Configuration Parameter
Configuration ParameterDescription
Connection Time OutThe maximum time to connect to the database. The driver waits for the specified time before timing out due to connection failure. The default time is 15000 milliseconds(ms).
Service Transport TypeTo configure the database at a secure end-point. The default type is In-secure. The connection is Secure when the data sent between the client and server is encrypted.
Service PortThe port number where the database is running. The connection is made to the specified port if you specify the port and the database name. The default port is 1521.
DB Instance NameThe name of the database to connect to. The default name is system.
  • If you have multiple database names with different ports, use the following syntax: `DBname1:Port1, DBname2:Port2,..` (Comma-separated).
    Important! Create separate credential sets on the resource if databases consist of different users. For example, if DBname 1 has credential set A and DBname 2 has credential set B, then create separate credentials sets on the resource.
  • If you have multiple database names with the same port, use the following syntax: `DBname1, DBname2,..` (Comma-separated).
Application TypeThe application type value to identify the adapter. For example, ORACLE_DB.
Warning: Do not change the default application type value.

Assign template from device management policies

Device management policies help manage resources. You can assign monitoring templates, knowledge base articles, and custom attributes using device management policies. The device management policy can be applied to one or a set of resources. For more information, see Create Policies.

View resource metrics

The gateway monitors the application using the assigned templates and displays the results in graphical format. To view resource metrics, click the desired database resource name > resource Details > Metrics.



Verify the following if the graphs are not plotted correctly:

  • The resource is accessible and Telnet is established for the IP address and port.
  • Valid credentials are used for the resource.

If you experience OracleDB monitoring issues, follow these troubleshooting steps:

  1. Verify server and gateway connectivity using Ping.
ping <IP Address>


  1. Verify Telnet-to-server listening port connectivity.
telnet <IP Address> <Port>


telnet 1433
  1. Execute the following commands from GCLI to verify the database connectivity:
db <Database Type> <IP Address> <User Name> <Password> <Port> <Database Name> <Connect Timeout> <ReadTimeout> <Secure Flag> <Query>


db oracleDB172.26.105.173 root Pass@123 5432 orcl 15000 10000 insecure "SELECT count(*) AS ACTIVE_SESSIONS from v$session where status='ACTIVE’"

From gateway version 5.3.0, use the following format to execute the command along with the result-set:

db <Database Type> <IP Address> <User Name> <Password> <Port> <Database Name> <Connect Timeout> <Read Timeout> <Secure Flag> <ResultSet?: Yes/No> <Query>


db mssql root Pass@123 5432 orcl15000 10000 insecure Yes "SELECT count(*) AS ACTIVE_SESSIONS from v$session where status='ACTIVE'"