| Commit message (Collapse) | Author | Age | Files | Lines |
|---|
| |
|
|
|
|
|
|
| |
This was a hack to implement list and info commands,
now that both list and info reads the metadata from the volume,
we don't need block_exec anymore.
Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
|
| |
|
|
| |
Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
from now We basically have 2 RPC connections,
1. Between gluster block CLI and local gluster-blockd
This connection is basically UNIX/local netid ,listening on
/var/run/gluster-blockd.socket file.
The CLI always Send/Receive the commands to/from the local
gluster-blockd via local rpc.
2. Between gluster-blockd's, i.e local (to cli) gluster-blockd and the
gluster-blockd's running on remote(blockhost)
This is the tcp connection. The rpc requests are listening on 24006
Also from now gluster-blockd is multi threaded (As of now 2 threads)
Lets consider the Create Request to understand what each thread solves
Thread1 (THE CLI THREAD)
* Listening on local RPC
* Generate the GBID (UUID) and create the entry with name GBID in the
given volume with a requested size.
* And Send the Configuration requests to remote hosts,
waits for the replies
(HINt: after this point Read Thread2 and come back)
* Return to CLI.
Thread 2 (THE SERVER THREAD)
* Listens on 24006
* On Receiving an event, read the structure.
* Executes the required "targetcli bla bla bla" command locally
* Fills the command exitcode and the output in the RPC reply structure
and send reply
Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
|
|
|
this patch,
deprecate ssh way of communicating between server nodes/pods
Reason: ssh way is hard to be accepted in container world (Kube).
An another option kubeExec way seems to be a bit weird,
to have uniform way of communication in container and
non container worlds, we prefer RPC.
From now we communicate via RPC, using a static port 24009
Hence, we have two components,
server component -> gluster-blockd (daemon)
client component -> gluster-block (cli)
Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
|
