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Posted to notifications@couchdb.apache.org by GitBox <gi...@apache.org> on 2022/11/14 01:44:07 UTC
[GitHub] [couchdb] waversky opened a new issue, #4265: CPU High
waversky opened a new issue, #4265:
URL: https://github.com/apache/couchdb/issues/4265
[NOTE]: # ( ^^ Provide a general summary of the issue in the title above. ^^ )
## Description
我在自己的电脑上安装了CouchDB ，用于学习，这大概是一个月前，最近我的电脑有点卡，今天发现是由erl.exe CPU(70%左右)占用过高导致的，它让电脑的CPU一直保持在100%，它来自“Apache CouchDB\erts-11.2.2.12\bin” 这个目录
I installed CouchDB on my computer for learning. About a month ago, my the computer is a little laggy recently had a bit of cards. Today, I found that it was due to the high CPU(about 70%) usage of CouchDB, It keeps the CPU of the computer at 100%，它来自“Apache CouchDB\erts-11.2.2.12\bin”这个目录
之后，我结束了“erl.exe” 进程，过了几秒，它又被唤起了，不过现在CPU占用维持在很低的水平
After that, I ended the "erl. exe" process. After a few seconds, it was awakened again, but now the CPU usage is kept at a very low level
我查看了本地的CouchDB，没有活跃的任务
I checked the local CouchDB and found no active tasks
## Steps to Reproduce
我不知道怎么重现，但是我还是想报告这个问题
I don't know how to reproduce，But I still want to report this problem
## Expected Behaviour
我最近没有关注自己电脑上的CouchDB ，它应该保持静默
I haven't paid attention to CouchDB on my computer recently. It should remain silent
## Your Environment
* CouchDB version used: v. 3.2.2
* Browser name and version: Microsoft Edge 107.0.1418.35 (64 位)
* Operating system and version:windows 10 19044.2006 Intel(R) Core(TM) i5-7400
## Additional Context
异常情况：
Exceptions:
进程重启后：
After the process restarts:
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Re: [I] CPU High [couchdb]
Posted by "BeckmannM (via GitHub)" <gi...@apache.org>.
BeckmannM commented on issue #4265:
URL: https://github.com/apache/couchdb/issues/4265#issuecomment-1954430824
I did a little research. I believe @waversky assumption is right and the problem is caused by windows sleep mode / fast start feature. I found some threads relating to the same problem with other software running with erlang. The suggested workaround is to disable windows fast start feature. I will try this and let you know.
Further informations:
* https://groups.google.com/g/rabbitmq-users/c/myl74gsYyYg
* https://erlang.org/pipermail/erlang-questions/2017-May/092256.html
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[GitHub] [couchdb] big-r81 commented on issue #4265: CPU High
Posted by GitBox <gi...@apache.org>.
big-r81 commented on issue #4265:
URL: https://github.com/apache/couchdb/issues/4265#issuecomment-1317554450
Is there anything weird in your log files?
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Re: [I] CPU High [couchdb]
Posted by "big-r81 (via GitHub)" <gi...@apache.org>.
big-r81 commented on issue #4265:
URL: https://github.com/apache/couchdb/issues/4265#issuecomment-1913175380
@waversky Hi, is this still a problem (with the latest version)?
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[GitHub] [couchdb] waversky commented on issue #4265: CPU High
Posted by GitBox <gi...@apache.org>.
waversky commented on issue #4265:
URL: https://github.com/apache/couchdb/issues/4265#issuecomment-1345753610
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Re: [I] CPU High [couchdb]
Posted by "BeckmannM (via GitHub)" <gi...@apache.org>.
BeckmannM commented on issue #4265:
URL: https://github.com/apache/couchdb/issues/4265#issuecomment-1966345973
So i can confirm disabling windows fast start fixes the issue for us. This is a workaround only, but this solution is suitable for us. And it proves the cause is related to erlang/windows and no couchdb issue.
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[GitHub] [couchdb] waversky commented on issue #4265: CPU High
Posted by GitBox <gi...@apache.org>.
waversky commented on issue #4265:
URL: https://github.com/apache/couchdb/issues/4265#issuecomment-1328406728
After Windows sleep for a weekend, activate Windows, erl.exe CPU usage reaches 50% - 70%, It may be related to the windows sleep switch
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Re: [I] CPU High [couchdb]
Posted by "big-r81 (via GitHub)" <gi...@apache.org>.
big-r81 commented on issue #4265:
URL: https://github.com/apache/couchdb/issues/4265#issuecomment-1954392530
@BeckmannM Maybe you should try the latest version, there are many improvements (besides CVE fixes). The question is, what process is causing the high cpu usage and from which state ...
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[GitHub] [couchdb] big-r81 commented on issue #4265: CPU High
Posted by GitBox <gi...@apache.org>.
big-r81 commented on issue #4265:
URL: https://github.com/apache/couchdb/issues/4265#issuecomment-1320019288
Is this all in your logs?
Can you show your [log] config section?
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Re: [I] CPU High [couchdb]
Posted by "BeckmannM (via GitHub)" <gi...@apache.org>.
BeckmannM commented on issue #4265:
URL: https://github.com/apache/couchdb/issues/4265#issuecomment-1954220168
@waversky: Are there any changes that may explain or fix this problem in recent versions? We are using version 3.1.0 and facing the same problem. In our scenario the couchdb is installed on windows surface tablets. Caused by the high cpu usage the tablets are getting uncomfortable warm. As waversky said, this appears when waking the tablet from standby. We have no aktive tasks or replications running.
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[GitHub] [couchdb] waversky commented on issue #4265: CPU High
Posted by GitBox <gi...@apache.org>.
waversky commented on issue #4265:
URL: https://github.com/apache/couchdb/issues/4265#issuecomment-1345751170
There are no active tasks. This may be a problem with Erlang or the Windows sleep mechanism. This happens every Monday morning when the computer wakes up.
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[GitHub] [couchdb] waversky commented on issue #4265: CPU High
Posted by GitBox <gi...@apache.org>.
waversky commented on issue #4265:
URL: https://github.com/apache/couchdb/issues/4265#issuecomment-1318218047
> Is there anything weird in your log files?
This?
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[GitHub] [couchdb] waversky commented on issue #4265: CPU High
Posted by GitBox <gi...@apache.org>.
waversky commented on issue #4265:
URL: https://github.com/apache/couchdb/issues/4265#issuecomment-1321388294
Today, the CPU usage of erl.exe soared again(about 30%). I ended its thread, but it immediately revived. After the revival, the CPU usage was about 20%. After several seconds, it dropped to a very low level. Now it is stable.
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Re: [I] CPU High [couchdb]
Posted by "big-r81 (via GitHub)" <gi...@apache.org>.
big-r81 commented on issue #4265:
URL: https://github.com/apache/couchdb/issues/4265#issuecomment-1966668481
It would be good to report this problem to the [Erlang/OTP](https://github.com/erlang/otp) team.
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[GitHub] [couchdb] big-r81 commented on issue #4265: CPU High
Posted by GitBox <gi...@apache.org>.
big-r81 commented on issue #4265:
URL: https://github.com/apache/couchdb/issues/4265#issuecomment-1328588728
Are there any active tasks in CouchDB while erl-CPU is high?
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[GitHub] [couchdb] waversky commented on issue #4265: CPU High
Posted by GitBox <gi...@apache.org>.
waversky commented on issue #4265:
URL: https://github.com/apache/couchdb/issues/4265#issuecomment-1321383483
I know nothing about erlang，You can tell me how to get logs，
I checked the configuration of these three files (**default.ini、local.ini、local.ini.dist**), and I'm sure they are all default, because each line starts with ","
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