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RDMA overlay network
coordinator must reject new devices if the guid is already taken
So far data is only in RAM. But probably this is okay for Großer Beleg because its just a proof of concept.
They are both really small. It makes no sense to have them separately.
I thought this issue is gone since Neli 0.5.0 .. but it still happens :( I don't know why it just started to appear again.
Similar to #9
Might be useful: jbaublitz/neli#110
Problem: Ovey device is created via OCP and in some cases the reply can't be deserialized... But I'm sure the kernel sends valid output..because it only happens inside neli if multiple messages has been sent.
This is really important and blocking. So far there is a single big lock. This means that if for example device creation stucks and the lock is not freed, the listening loop can never receive requests.
First attempt:
Second attempts:
the solution is to do inside the kernel module
I allow everybody to bind right now. Ideally there should be a set of IPs or a subnet that allows to bind to the coordinator.
Use macros from log
crate. This works along with actix (Web Framework)
Wait for phip1611/simple_on_shutdown#1 to get resolved
$ ovey_cli list
should query the Ovey Daemon for all devices ON THE CURRENT machine. the output should be a table with the columns:
This is important for debugging!
Would work like this:
Action: invoke without any argument
Expected: display help message
Is: help message is only displayed when invalid args or "help" are given.
Keep in mind: add unique constraint/check for device name inside a network
The device name is a purely local name. It can be the same even for different network namespaces on the same machine. Coordinator should not be preventing from such "collisions"
because each device is inside a specific virtual network
I had to build this hacky workaround 25a9523. Otherwise neli (the netlink socket lib) fails with panics. To test this issue:
libocp/src/bin/ocp_device_c_r_d.rs
without the workaroundneli
to 0.5.3
(once it's released - jbaublitz/neli#144 is the main blocking issue for this)Currently the guid string is endianness-flipped in ovey kernel module and ovey coordinator.
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