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Forum Discussion
RN102 - readynasd (loadavg) runaway cpu usage?
My ReadyNAS 102, running firmware 6.10.3, is currently thrashing its cpu. Here's the output from top: top - 18:50:39 up 16 days, 22:11, 1 user, load average: 1.87, 1.86, 1.89
Tasks: 143 total,...
Is the NAS currently doing a scrub or other intensive process? I have seen even more powerful NAS models have readynasd run amuck during those processes, eating up to 100% of the CPU time. It has been reported to Netghear by myself and others, but to no avail. My suspicion is that some I/O process gets locked and readynasd just keeps trying it over and over again. Maybe you've identified that process.
Thanks for the info.
Nothing else seems to be using significant resources, either now or when I first noticed the problem yesterday. I've never asked for a scrub/defrag/balance/test, and the 'Volume Schedule' is empty (and has always been so, AFAIK). I haven't touched the admin interface for at least a week, so wasn't using it at the time the problem started.
I don't think I ever have the NAS do anything intensive, though I do run a couple of services in a non-official way (syncthing & logitech media server). It's conceivable they could cause a high load at times, I suppose.
Anyone have any other ideas? Should I just reboot, or is there something I should try before that which could help us understand the problem?
Shortly after my last message, I restarted the `readynasd` service, and everything seemed to be working fine. It continued to work fine until today (21 days later), when again the load spiked. `readynasd` and its `loadavg` thread was the culprit again. Entries stopped being written into the `/var/readynasd/loadavg.dat` file again.
I can't see anything interesting in any logs near the time of onset, and I wasn't making any particular use of the NAS at that time. I've restarted the `readynasd` service and things have returned to normal. I'd still appreciate any ideas of things to check or look out for when this next happens.
Today I had a repeat of the problem, coming up to 25 days since I last restarted readynasd.
Anyone have any ideas?
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