Tracing latencies for querying MongoDB using MongoDB java driver

Question

I'm doing a perf test to analyze the performance of a application which uses the MongoDB. The application is written in java and it uses the MongoDB java driver to connect to cloud MongoDB instance.

I want specifically to analyze the performance of the following code line.

collection.find(parseSearchQueryDirect(searchQuery)).skip(start).limit(offset);

So, I need to trace the network latency, connect time and actual query processing time for the above code line.

Is there a way to do this with mongoDB java driver or using any other tool??

dododo · Accepted Answer · 2021-08-06 14:14:27Z

1

Look at this.

actual query processing time for the above code line.

Command Monitoring section.

connect time

Connection Pool Monitoring section.

network latency

Cluster Monitoring section. NOTE: In ClusterDescriptionChangedEvent and in turns in newDescription you can see getServerDescriptions that will provide the current state of the used servers each of them in particularly will include roundTripTimeNanos that will mean average latency (RTT).

edited Aug 6, 2021 at 14:14

answered Aug 6, 2021 at 14:04

dododo

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2 Comments

Vajira Prabuddhaka Over a year ago

it seems in the command monitoring it shows the total time, including network latency. what I need is the actual time taken for processing the query in mongoDB server side.

dododo Over a year ago

then you can see it only in the server logs

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