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OutOfMemoryError on Dns Resolution

See original GitHub issue

I recently upgraded to 4.1.51 to pull in a fix for #10246. However, now I get an OutOfMemory issue that seems related to the same code? We have been running netty for a few months with no OOM issues until now. I plan to downgrade netty back to 4.1.50 for now.

heap dump

Expected behavior

dns resolution

Actual behavior

OutOfMemoryError

Steps to reproduce

unfortunately i am not able to provide reproduction steps.

Minimal yet complete reproducer code (or URL to code)

Netty version

4.1.51

JVM version (e.g. `java -version`)

java version “1.8.0_212” Java™ SE Runtime Environment (build 1.8.0_212-b10) Java HotSpot™ 64-Bit Server VM (build 25.212-b10, mixed mode)

OS version (e.g. `uname -a`)

Linux 3.10.0-514.26.2.el7.x86_64 #1 SMP Tue Jul 4 15:04:05 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux

Issue Analytics

State:
Created 3 years ago
Comments:16 (11 by maintainers)

Top GitHub Comments

2reactions

normanmaurercommented, Aug 12, 2020

@kireet ok I know what happens… Just need to think a bit about how to solve this in a proper way. stay tuned

1reaction

normanmaurercommented, Aug 11, 2020

@kireet yeah I was not able to reproduce it as well. I will continue to debug and see if I somehow can. That said I think I will revert the Stackoverflow “fix” for now as it seems that the real reason is not really fixed which at the end then cause an OOME as we not overflow now anymore. Agree ?