#support

NFS-related Issue with file signoz.db

TLDR Steve experienced NFS-related issues with the signoz.db file. Srikanth indicated untested compatibility with NFS. Steve resolved the issue by using hostFile paths and regular back-up.

3mo

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Aug 11, 2023 (3 months ago)

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Steve

10:15 PM

ah, ok I've sort of proven that now. Redirecting the query service to use a hostPath temporarily for the signoz.db file, the query service comes up. Anyone have any idea why I cannot use an NFS provision for signoz.db file without getting: ? The issue is definitely NFS related

Image 1 for ah, ok I've sort of proven that now. Redirecting the query service to use a hostPath temporarily for the signoz.db file, the query service comes up. Anyone have any idea why I cannot use an NFS provision for signoz.db file without getting: ? The issue is definitely NFS related

Aug 14, 2023 (3 months ago)

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Srikanth

01:56 AM

We haven’t tested with NFS https://github.com/SigNoz/signoz/issues/2445

Steve

06:27 PM

ok thanks

06:29

Steve

06:29 PM

We've worked around it. There are issues relating to any sort of file-share mounting that relates to the uid/gid that each respective component is using. zookeeper pod is one example that prevented me from mounting a share on the K8s node and using hostpath provision for it.

06:31

Steve

06:31 PM

However, all pods work fine on hostpath, as long as you don't try to mount it on a fileshare, as long as we modify the various place where the securityContext is specifying different uid's that don't resolve all of the permissions issues.

06:32

Steve

06:32 PM

In the end, we worked around it by either altering the gid/uids, and not mounting. Just leaving on the hostpath. Create a cron job to back up every 15 minutes or so to the share

06:33

Steve

06:33 PM

Strange thing about zookeeper was that even if you alter its securityContext to runas root.....it will still write some of its data to the volume as uid 1000

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