High Memory issue at version 2.6.0

[ambika93]

Team,
I'm using 2.0.6 version. After activating apm on service, memory increases gradually. At start of service memory is around 2 GB, which increases to 8 GB after 3 days and so on.

I'm using all default configurations.
Node dependency as below:
"aerospike": "3.0.2",
"async": "^2.6.0",
"bitset.js": "~4.0.1",
"body-parser": "^1.14.1",
"commander": "^2.9.0",
"ejs": "^2.3.4",
"express": "~4.9.6",
"kafka-node": "^2.6.1",
"lodash": "~3.10.1",
"moment": "~2.10.6",
"morgan": "~1.3.2",
"mysql": "^2.10.2",
"newrelic": "~1.29.0",
"node-uuid": "^1.4.7",
"nodemailer": "0.7.1",
"on-finished": "~2.3.0",
"q": "^1.4.1",
"redis": "^2.4.2",
"request": "^2.69.0"
I'm using new relic but it is disabled currently.

[watson]

When you say that new relic is disabled, in what way do you mean? Are you still requiring the newrelic module or is it just in your dependencies but not required?

[ambika93]

It's just a dependency and not required.

[watson]

Thanks 👍

Are you able to reproduce the problem in a small test-application that you can share with us? It would help us a lot in debugging the problem.

[ambika93]

@watson I'll try to reproduce issue on small test application. For now, I'm sharing memory graph. Normally it remains around 2 GB.

[ambika93]

@watson I've taken heapdump at my service. And i found issue with async hooks. I'm using node 8.12.0. I disabled asyncHooks and testing. I will update same.

[watson]

Oh, interesting. Thanks for debugging this and sharing your progress.

I'd love to hear more about exactly what's causing it or if you can share a reproducible test-case. There were a fix in v8.13.0 for an async hooks bug that I think could cause memory leaks in some cases - so it would also be interesting to see if the issue went away if you upgraded.

[watson]

@ambika93 Did you get a chance to upgrade to a newer version of Node.js to see if the issue went away?

[watson]

Closing for now due to lack of activity. Feel free to leave a comment if you want this to be reopened.