Forum Discussion
Major Onedrive Business client continuous sync loop bug
Couple of points (mostly in reply to OP):
First point - this has actually been a "problem" for a considerable amount of time, I recall certainly throughout 2016 as encountering this (personal OneDrive with iTunes library configuration stored there - iTunes causes a write lock throughout the time it's running). Any write lock will cause OneDrive to loop through looking for changed files, as it's reacting to writes. Consequently, I'm not convinced searching for an older client will help.
Most straight-forward way to find the files is looking at the explorer file badges; folders and files with locks will constantly have the blue sync badge over their icon.
Second point - the bit about destroying SSD through NAND writes is completely wrong. If you actually look at the procmon results you'll see the desired access for every file is Read/List + Read Attributes. Additionally, it's not hundreds of gigabytes worth of data since it's just scraping the properties for the file to work out what's changed. You can confirm this by loading up Resource Manager, hitting the Disk tab and (if it even appears) selecting OneDrive.exe.
CPU nor disk performance never spirals out of control, so don't see this as being much of an operational issue.
Interesting. I've never seen this happen until a few weeks ago, but that could certainly be due to some file locking that I"m not aware of.
Just a few minutes ago, as I arrived to work, and docked my laptop, and resumed from hibernation, all of a sudden, every site started syncing again, and now it's cranking through 8GB of data. This never happened before, and now it seems to be almost every day.
It's good to know that my SSD won't burn out, but the bandwidth issue is annoying, and so is the fact that I can't really access my files while this is happening. It is true that the CPU seems to be under control, but my fans do kick in on the laptop, and the network speed is affected...especially when this has happened to several people at our company all at once.
So I'm very interested to know why this is happening, whether a fix is coming, and if it is truly related to a locked file (does this mean I have locked files on EVERY site, or does one locked file cause all sites to be re-synced?), how can identify which file that is? Should I just stop syncing all sites and re-sync them again to possibly "fix" the locked file situation?
I also wondered if this is due to the fact that two of the three sites I'm syncing have exceeded the List View Threshold. That used to just kill things entirely, but now OneDrive seems to work, and so do the sites, but I'm wondering if that is affecting the sync at all?
Incidentally, a few weeks ago I did end up having to resync everything because my One Drive kept crashing on a KernelBase.DLL error. I was finally able to get it to function long enough to try to resync, and it told me I was already syncing those sites (but it wasn't), so most if not all of the registry settings were still there. But once I was able to stopp syncing all the sites, I was able to restart the sync. I'm not sure that was related, but these issues all started after that. (What seemed to cause this issue was one of our users dropping a 2.6GB zip file into a folder. I noticed the increased size, unchecked the folder it was in, and it seemed fine for a bit, and then the icon just disappeared, and I could never get it to restart, until finally checking event viewer to find the crash details.)
The other thing that I saw, and some of my co-workers, was a scenario where OneDrive got stuck syncing, and it showed remaining files of 30-40GB (when our site is nowhere near that big). So something was messed up, and I'm not sure why. I haven't seen that since re-syncing, but now I'm experiencing this full sync issue, almost on a daily basis.
Any help on how to find the cause and fix it would be appreciated.
