Constantin Dimitrov

Same happens with requests 2.27.1 and urllib3 1.26.13 if it helps tracemalloc shows increments: stats top 10 every 500: requests/utils.py:353: size=4600 B, count=60, average=77 B diffs top 10 every 500:...

The issue could be link to nodejs see pull: https://github.com/nodejs/node/pull/48943

Actually node21 dont have nan support yet, on Linux in my case this here is called by uv_async_io: https://github.com/Blizzard/node-rdkafka/blob/master/src/workers.h#L156 then first HandleMessageCallback from WorkMessage, then HandleMessageCallback enters callback->Call but the...

Yes, but could also be more than 50. By connection i mean connection (onConnectionInternal) which happens to be a fd on linux in terms of nodejs and incoming after onParseHeadersComplete...

This is because of the worker.WorkComplete() added in kafka_consumer.cc/NodeDisconnect in 2.16.1 , can be reproduced on double disconnect or pause and disconnect, connect/disconnect at the same time. Another note here...

The same in 20.x. It should rather use observable pattern for the state of libuv reporting back rather than load it more to measure it. Also has memory leak Node/Detached...