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Posted to dev@rocketmq.apache.org by "MmringZee (via GitHub)" <gi...@apache.org> on 2024/01/17 10:43:27 UTC
[D] JVM parameter configuration failure [rocketmq]
GitHub user MmringZee created a discussion: JVM parameter configuration failure
I have changed the JVM related parameters of runserver.sh and runbroker.sh by modifying them, but with the command
`$ nohup sh bin/mqnamesrv &` and `$ nohup sh bin/mqbroker -n localhost:9876 --enable-proxy &` . After starting rocketmq, I found that rocketmq's memory footprint still reached nearly 8 GB.
![Uploading 20240117-184124.jpg…]()
GitHub link: https://github.com/apache/rocketmq/discussions/7759
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Re: [D] JVM parameter configuration failure [rocketmq]
Posted by "MmringZee (via GitHub)" <gi...@apache.org>.
GitHub user MmringZee added a comment to the discussion: JVM parameter configuration failure
但是虚拟内存也意味着rocketmq需要申请到那么多资源才能启动，即使不需要真实地使用。
我现在的场景就是需要在k8s里部署rocketmq，但是因为这个情况我发现我不得不把request设置得很大，这会占用掉很多的集群资源 T.T
GitHub link: https://github.com/apache/rocketmq/discussions/7759#discussioncomment-8175938
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Re: [D] JVM parameter configuration failure [rocketmq]
Posted by "leizhiyuan (via GitHub)" <gi...@apache.org>.
GitHub user leizhiyuan added a comment to the discussion: JVM parameter configuration failure
你直接在容器里面看 ps aux|grep java 看看jvm参数实际生效的是什么，我们在2C4G的容器里也能跑起来的
GitHub link: https://github.com/apache/rocketmq/discussions/7759#discussioncomment-8176143
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Re: [D] JVM parameter configuration failure [rocketmq]
Posted by "leizhiyuan (via GitHub)" <gi...@apache.org>.
GitHub user leizhiyuan added a comment to the discussion: JVM parameter configuration failure
没有，虚拟内存是可以大于物理内存的啊
GitHub link: https://github.com/apache/rocketmq/discussions/7759#discussioncomment-8178126
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Re: [D] JVM parameter configuration failure [rocketmq]
Posted by "MmringZee (via GitHub)" <gi...@apache.org>.
GitHub user MmringZee added a comment to the discussion: JVM parameter configuration failure
刚看了一下，虚拟内存占了9个多G，实际内存1个多G，很离谱。你们是在rocketmq打成镜像前把那两个启动脚本里的JVM参数改了就ok了吗？没有做其他和内存相关的配置了嘛
GitHub link: https://github.com/apache/rocketmq/discussions/7759#discussioncomment-8178099
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Re: [D] JVM parameter configuration failure [rocketmq]
Posted by "leizhiyuan (via GitHub)" <gi...@apache.org>.
GitHub user leizhiyuan added a comment to the discussion: JVM parameter configuration failure
这是虚拟内存
GitHub link: https://github.com/apache/rocketmq/discussions/7759#discussioncomment-8175754
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Re: [D] JVM parameter configuration failure [rocketmq]
Posted by "MmringZee (via GitHub)" <gi...@apache.org>.
GitHub user MmringZee added a comment to the discussion: JVM parameter configuration failure
Here's the first picture.
GitHub link: https://github.com/apache/rocketmq/discussions/7759#discussioncomment-8155075
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Re: [D] JVM parameter configuration failure [rocketmq]
Posted by "MmringZee (via GitHub)" <gi...@apache.org>.
GitHub user MmringZee edited a comment on the discussion: JVM parameter configuration failure
但是虚拟内存也意味着rocketmq需要申请到那么多资源才能启动，即使不需要真实地使用。
我现在的场景就是需要在k8s里部署rocketmq，但是因为这个情况我发现我不得不把request设置得很大，这会占用掉很多的集群资源 T.T
我一开始尝试调整jvm参数并把request和limit设置成合理的1、2G甚至2、4G发现都没办法部署一直报OOM。后面在开发环境才发现内存占用量很高这个事情。
GitHub link: https://github.com/apache/rocketmq/discussions/7759#discussioncomment-8175938
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