oratop - Utility for Near Real-time Monitoring of Databases, RAC and Single Instance (文档 ID 1500864.1)
In this Document
Oracle Database - Enterprise Edition - Version 184.108.40.206 to 220.127.116.11 [Release 11.2]
oratop is a utility similar to the unix OS utility top which gives a overview of database performance and can be used in combination with top to gaet a more complete overview of system performance
NOTE: oratop can be used to monitor databases on other platforms but the executable must run on Linux with an Oracle client.
To monitor databases on other platforms simply define an alias in tnsnames.ora of the linux client and connect to the databases remotely as you would with sqlplus
Supported Oracle Releases
Download the oratop executable for 11gR2 on Linux x86-64 here.
Download the oratop executable for 12c on Linux x86-64 for use with 12c clients here.
Download the oratop executable for 11gR2 on Linux x86-32 here.
Download the oratop executable for 12c on Linux x86-32 for use with 12c clients here.
Please download and review the oratop Users Guide for specific instructions on how to configure and run oratop. A Quick Start Guide is provided in the Instructions section of this Note.
Quick Start Guide
Note: For detailed instructions on how to run oratop please download and review the latest oratop Users Guide.
- Log in to the system as the Oracle RDBMS software installation owner
- Stage the oratop executable on the server on which the tool will be executed. On a RAC system it is only necessary to stage the executable on one node as it is RAC aware.
- Change the name of the executable, eg.
$ mv oratop* oratop
- Validate the permissions for oratop are 755 (-rwxr-xr-x). If the permissions are not currently set to 755, set the permissions on oratop as follows:
$ chmod 755 oratop
- Configure the execution environment as follows (if not already set accordingly)
$ export TERM=xterm #or vt100
$ export ORACLE_HOME=<11.2 database home>
$ export LD_LIBRARY_PATH=$ORACLE_HOME/lib
$ export PATH=$ORACLE_HOME/bin:$PATH
$ export ORACLE_SID= #only needed if connecting to a local database
- Invoke the tool to monitor a local database as follows (interval can be any interval in seconds):
$ ./oratop -i 10 / as sysdba
- Non-dba privileged user requires specific grants to use the tool. See User Guide for grants required.
- Databases can be monitored remotely using a tns alias as described in the oratop Users Guide.
$ ./oratop -i 10 username/password@tns_alias
$ ./oratop -i 10 system/manager@tns_alias
- To exit the program simply press the keyboard key "q". To abort, CTRL-C.
If you receive an error similar to
./oratop: error while loading shared libraries: libclntsh.so.11.1: cannot open shared object file: No such file or directory
that is an indication that libclntsh.so.11.1 was not found in the path defined in LD_LIBRARY_PATH similar to
$ export LD_LIBRARY_PATH=$ORACLE_HOME/lib (ie., the location of libclntsh.so.11.1)
This sample code is provided for educational purposes only, and is not supported by Oracle Support. It has been tested internally, however, we do not guarantee that it will work for you. Ensure that you run it in your test environment before using.
The tool is a compiled c program.
Color coded labeling for illustrative purposes only.
CPU Intensive Workload
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