GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together. Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Already on GitHub? Sign in to your account. The memory usage remains low however. That must be fixed in current develop. If you want give it a try please send me a note to nzbget gmail. Skip to content. Dismiss Join GitHub today GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.
Sign up. New issue. Jump to bottom. Labels support. Copy link Quote reply. I dont know if this is enough information to help. If its not, please let me know.
This comment has been minimized. Sign in to view. Thats great thank you. I've sent you an email. Hi I tested r and so far its been perfect, since I upgraded.
DynaMight closed this Apr 7, Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment. Linked pull requests. You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window.Privacy Terms. Quick links. Post Reply. However the CPU is still spiking with this threadeven with everything disabled. My ports are still openso will try closing or changing them next. The web itnerface is responding very slowly.
Using a SSH connection with the top command it is clear that the load goes up all the time when the web interface is up. What are all those "system processes" in resource monitor? Worked with tech support to quit virtually every process. Please fix, Qnap. The reason qnap support could not really fix it is that the guilty processes constantly hop around. Then it drops and manarequest.
Support said that Qmail should not be the problem, but could not locate the issue otherwise. Different firmware etc does not really matter. The thing to watch is mariadb. What always helps for me is to restart mariadb. Still not sure why it happens sure I use a lot of stuff. For sure I know Plex was one of the apps causing it for quite some times I am not using that anymore.
Still I have this problem one a while. My suspect is in backup stuff but not sure off that neither do I have evidence of this at the moment.
It only takes a minute to sign up. It just stucks and refuses to do anything. I tried to kill all processes with high cpu usage but when I opened some file it stucks again one or more smbd processes with very high cpu usage. The only thing that works is to reboot NAS and then it works for another week or two. The related issue is dedicated to linux 2. In case the above mentioned io perf.
Would be good to know if your issue is same as root cause as the reported kernel issue is not fully understood - thus there are many other threads in the qnap forum that report similar behaviour. Newer kernels do not have this issue any more. Sign up to join this community. The best answers are voted up and rise to the top.
Home Questions Tags Users Unanswered. Asked 8 years, 2 months ago. Active 8 years ago. Viewed 8k times. Has anyone encountered a similar problem? I have the same issue. Moved the VHD's to a differnt storage device and the problem went away. No, I mean do you have VMWare images store on the qnap via the Isci we have had the problem ii describe with our qnap.
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Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. The Overflow How many jobs can be done at home? Featured on Meta. Community and Moderator guidelines for escalating issues via new response…. Feedback on Q2 Community Roadmap.Problems caused by the high CPU usage was people complaining of "server" being slow, not allowing them to save and even getting access denied messages.
Only one complained of access denied and the rest just complained about the speed. I would make sure the FW is up to date, a new one came out recently for Qnap devices, not sure if yours is one of the models it supports, secondly I would disable any services you no longer use, such as iSCSI.
We had to reconnect AD before and as a result it lost all permissions on all shares and we had to re-do themdon't want to go there again :S. Just an update : we just upgraded the fw to the latest version. Seems OK so far I will update tomorrow.
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Thanks guys. Best Answer. Pure Capsaicin.
Popular Topics in Data Storage. Which of the following retains the information it's storing when the system power is turned off? It only has an atom CPU, this wont handle too much, how many users hit the box at once?
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Hey Rod-IT thanks for the quick reply. Domain joined : Yes All other services no. We used it until recently for hyper V storage via iSCSI but not anymore so now its only file server on the same time i would say around users? Rod-IT Pure Capsaicin. Hey guys, update : Upgrading FW seems to have fixed the issue.
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Quick links. What is NAS doing constantly?! Post Reply. It's always busy with some work. CPU usage is about 40 constantly. I have not so many apps on it. Just standard Stations app and Plex Media Server. I understand that Plex can index media.
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But I disabled scheduled indexing and currently I'm sure it's not indexing anything can be checked on Status page. I rebooted the NAS. On start it run Indexing media despite the fact it's disabled! I pressed "Pause" to pause thumbnail generation. It changed nothing - it continues doing something I can hear how it torments HDDs. Why does this piece of You do not have the required permissions to view the files attached to this post.
Re: What is NAS doing constantly?! Contact Moogle Stiltzkin. PS: for 6. I can hear how it torments HDDs. RAID have never ever been a replacement for backups. Without backups on a different system preferably placed at another siteyou will eventually lose data!These are used by glibc iconv implementation. It works similar to the standard UNIX dbm routines.
Successfully terminated. No joy unfortunately, after 30mins I gave up. Removed that plugins folder, then started it up again, and it seems the Plugins directory automatically appears again? Would really love to get this working, so if there is anything else i can try please let me know :. Uninstall the full package of Plex.
Then i'll install the package again on a clean start with no Python anywhere. A sym. Same issue. It is fully initialised, no activity in log but the plex process is consuming all the CPU. Sadly, no more bullets here, so unless somebody else kicks in, I'm afraid you are on your own, as much as I hate this.How to solve kernel_task high CPU usage?
No worries. Thanks for the help anyway. I'll leave it going overnight, then uninstall tomorrow if its still the same. First I thought because I enabled the indexer but when I switched off the automatic indexing and reboot which should stop any analyzing going on the problem still persisted.
I switched the package on and off so often that I actually managed to break it and Plex is not starting anymore. Antivirus is disabled never enabledi've disabled most qpkgs and webserver, and as much other things as i can spot.
Except Java, not sure if that would clash. Its been 24 hours, and it still sits there, is a 1. Nothing appears to be happening in the logs. I'm trying to get it up and running so I can use PlexConnect, I've only been using Serviio so far, but I want to go via the apple tv 3. If anyone has any clues into how or if its even possible on a pro it'd be much appreciated. I've just completely uninstalled, and rebooted and reinstalled again.
Its on I haven't gone to the first configure webpage at all yet, this is only after install. Try and stop Plex, if possible. I haven't gone to the setup page yet, i'm waiting and watching the CPU usage. Will leave it a few more hours, but it still looks to be stuck at Sadly, almost clueless here : Only other thing I can think of, are the errors in the log for all the python stuff. Good things to try, thanks. Should I always delete the plugin dir? Are they simply 'traps' on the Qnap?
I have read that this indicates the kernel is struggling with queued tasks, which occurs under overwhelming system load. This kernel usage of CPU dramatically slows production and only prolongs the queued tasks. The weird part is that, after about 30 minutes, the system load will disappear, with the kernel processes decreasing back to zero CPU usage, only to begin hogging the CPU again later. During this entire time, the amount of work being fed to the CPUs has not changed, and is usually handled just fine.
However, when these kernel processes kick in, it completely kills production. Here is the output of "top -u root" during one of these events. However, there is no iowait, and the system load average is 22 out of 24 coreswhich is normal.
Are there any potential explanations for the behavior of these processes when CPU load is strictly regulated to be manageable? In searching the web, everyone blames overwhelming system load, but my server's behavior does not suggest that the used resources should cause this lock-up.
The server's cache settings had somehow been reset without my knowledge, setting swappiness to After setting swappiness to 1, I have not come across the same hang-ups from the kernel processes, and sar -W shows near-zero values at all times. In summary, it appears that aggressive swapping during high load with large memory transfers was bogging down the system during times of large and rapidly changing demand for resources.
QNAP NAS Community Forum
So, for some reason your Linux scheduler decides that processes need moving to another CPU, and the migration process eats the CPU time. You could try pinning processes to specific CPUs, or try different schedulers with your kernel. Maybe some other scheduler isn't so eager in migrating processes to other CPUs. I've tracked issues with migration kernel process reported here.
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