[Gluster-users] Enable sharding on active volume

[Ian Halliday]

Hello,

I wanted to post this as a question to the group before we go launch it in a test environment. Will Gluster handle enabling sharding on an existing distributed-replicated environment, and is it safe to do?

The environment in question is a VM image storage cluster with some disk files starting to grow beyond the size of some of the smaller bricks.

-- Ian

[Krutika Dhananjay]

Post by Ian Halliday
Hello,
I wanted to post this as a question to the group before we go launch it in
a test environment. Will Gluster handle enabling sharding on an existing
distributed-replicated environment, and is it safe to do?

Yes it's safe but it would mean that only the files that are created since
shard was enabled would be sharded, not the existing files.
If you want to shard the existing files, there are a couple of things you
can do:

1. move the existing file to a local fs from your glusterfs volume and then
move it back into the volume.
2. copy the existing file into a temporary file on the same volume and
rename the file back to its original name.

You could try both on two test vms and go with the faster of the two
approaches. And either way, you could do this one vm at a time.

-Krutika

The environment in question is a VM image storage cluster with some disk

Post by Ian Halliday
files starting to grow beyond the size of some of the smaller bricks.
-- Ian
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