MongoDB: db.setProfilingLevel() method

Last update on August 19 2022 21:50:42 (UTC/GMT +8 hours)

db.setProfilingLevel

The db.setProfilingLevel() method is used to modify the current database profiler level used by the database profiling system to capture data about performance. The mongod writes the output of the database profiler to the system.profile collection.

Syntax:

db.setProfilingLevel(level, slowms)

Parameters:

Name	Description	Required / Optional	Type
level	Specifies a profiling level, which is either 0 for no profiling, 1 for only slow operations, or 2 for all operations.	Required	integer
slowms	Sets the threshold in milliseconds for the profile to consider a query or operation to be slow.	Optional	integer

Example: MongoDB: db.setProfilingLevel() method

db.setProfilingLevel(1);
db.setProfilingLevel(0);
db.setProfilingLevel(2);
db.setProfilingLevel(2,1);

Output:

> db.setProfilingLevel(1);
{ "was" : 0, "slowms" : 100, "ok" : 1 }
> db.setProfilingLevel(0);
{ "was" : 1, "slowms" : 100, "ok" : 1 }
> db.setProfilingLevel(2);
{ "was" : 0, "slowms" : 100, "ok" : 1 }
> db.setProfilingLevel(2,1);
{ "was" : 2, "slowms" : 100, "ok" : 1 }

Retrieve the restaurants data from here

Previous: db.serverStatus() method
Next: db.shutdownServer() method