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Store each vnode data on a different disk? #32

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ksonbol opened this issue Jan 8, 2020 · 0 comments
Open

Store each vnode data on a different disk? #32

ksonbol opened this issue Jan 8, 2020 · 0 comments

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@ksonbol
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ksonbol commented Jan 8, 2020

By default, all Distem vnode data and configuration are stored in /tmp/distem on the main disk, which makes the vnodes compete for disk read/write. Since vnodes in my experiment will each use the disk, I was wondering if there is a way to isolate the vnodes disks.
Assuming the physical node has multiple disks, and that we format them, create a partition, and mount them, I thought I found a way to do this:

if I set the "path" parameter in the "vfilesystem" hash to a different mount point for each vnode on the same pnode host:

path [r]: The path to the unique directory used to store this virtual node files

I tried it but it seemed to ignore the parameter completely and just used the default:

"/tmp/distem/rootfs-unique" + node name

Update: I realize now this is a read-only parameter. Would it be possible to use different disks if you could make this parameter writeable?

Thanks!

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