Memory leak in an infinite service

Getting Help
1

Sorry for the mistakes I’m making translate.google
I need to create a program that runs endlessly, it needs to query records from a postgres database and process this information.

I have a lot of data to process.

The problem is that it is consuming memory and does not release more, I tried everything I read several articles on good practices for database querying and processing with goruntines.

Has anyone ever had a similar problem? or know how I can know which part of the code is not releasing the memory correctly?

Thanks for the help!

2

If you don’t show us any code, it is impossible to help you.

Can you show us the relevant parts of your code that demonstrates the problem?

3

pprof with the -memprofile option could be a good start.
Example: go test -memprofile mem.prof -bench .
Go package reference : https://golang.org/pkg/runtime/pprof/
Relevant Go blog post: https://blog.golang.org/profiling-go-programs
Scroll down the blog entry to see this example:

$ go tool pprof havlak3 havlak3.mprof  
Adjusting heap profiles for 1-in-524288 sampling rate  
Welcome to pprof!  For help, type 'help'.  
(pprof) top5  
Total: 82.4 MB  
    56.3  68.4%  68.4%     56.3  68.4% main.FindLoops  
    17.6  21.3%  89.7%     17.6  21.3% main.(*CFG).CreateNode  
     8.0   9.7%  99.4%     25.6  31.0% main.NewBasicBlockEdge  
     0.5   0.6% 100.0%      0.5   0.6% itab  
     0.0   0.0% 100.0%      0.5   0.6% fmt.init  
(pprof)

See how main.FindLoops used 56.3MB memory

4

This topic was automatically closed 90 days after the last reply. New replies are no longer allowed.