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Potential memory leak in ProbeScheduler

See original GitHub issue

Description

On one of the Che master instances, I’ve noticed potentially high memory consumption. 15 29 58 Heap dump shows one object with ~ 1.2G. 15 21 16 Deep dive show that this is 15139 TimterTask in ProbeScheduler 15 22 11 AFAIK this probes should be ~ NUM of workspecase * num of servers.

From what I can find number of workspaces ~500-700 15 23 00

The goal of this task is to

study if that was expected to see TimterTask in ProbeScheduler can take 1.3 G
Make sure that fields probeThread and httpUrlConnection in HttpProbe are not cousing any leak and should/can be dereferenced.

Reproduction Steps

OS and version:

Diagnostics:

Issue Analytics

State:
Created 5 years ago
Reactions:1
Comments:14 (9 by maintainers)

Top GitHub Comments

1reaction

garagatyicommented, Dec 20, 2018

@ibuziuk If it is TimeoutTask that bugs the memory then something like this diff should help https://github.com/eclipse/che/compare/master...garagatyi:probeMemoryLeak?expand=1 But if it is not only that task but something else in addition then we would need to investigate additionally.

0reactions

ibuziukcommented, Jan 2, 2019

Merged into master and part of 6.16.0 release. Closing

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