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Posted to notifications@skywalking.apache.org by GitBox <gi...@apache.org> on 2019/11/19 06:54:17 UTC

[GitHub] [skywalking] cnfree opened a new issue #3890: Skywalking Agent 导致 Metaspace OOM

cnfree opened a new issue #3890: Skywalking Agent 导致 Metaspace OOM
URL: https://github.com/apache/skywalking/issues/3890
 
 
   Please answer these questions before submitting your issue.
   
   - Why do you submit this issue?
   - [ ] Question or discussion
   - [Y] Bug
   - [ ] Requirement
   - [ ] Feature or performance improvement
   
   ___
   ### Question
   - What do you want to know?
   
   ___
   ### Bug
   - Which version of SkyWalking, OS and JRE?
   SkyWalking 6.4
   JDK 8, CMS GC
   - Which company or project?
   
   - What happen?
   If possible, provide a way for reproducing the error. e.g. demo application, component version.
   
   规则引擎项目使用了 nashron script，规则会动态生成大量Class，引入Skywalking agent以后，每隔几个小时就会 Metaspace out of memory，将 metaspace 空间提升到1G依然会发生，设置任何和 class 相关的jvm参数均没有效果，可以判定skywalking对 nashron script 产生的 class 持有了引用，导致 soft reference 无法被回收
   
   ___
   ### Requirement or improvement
   - Please describe about your requirements or improvement suggestions.

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