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Feature
-------
**RDMA Improvements**
Summary
-------
This proposal is regarding getting RDMA volumes out of tech preview.
Owners
------
Raghavendra Gowdappa <rgowdapp@redhat.com>
Vijay Bellur <vbellur@redhat.com>
Current status
--------------
Work in progress
Detailed Description
--------------------
Fix known & unknown issues in volumes with transport type rdma so that
RDMA can be used as the interconnect between client - servers & between
servers.
- Performance Issues - Had found that performance was bad when
compared with plain ib-verbs send/recv v/s RDMA reads and writes.
- Co-existence with tcp - There seemed to be some memory corruptions
when we had both tcp and rdma transports.
- librdmacm for connection management - with this there is a
requirement that the brick has to listen on an IPoIB address and
this affects our current ability where a peer has the flexibility to
connect to either ethernet or infiniband address. Another related
feature Better peer identification will help us to resolve this
issue.
- More testing required
Benefit to GlusterFS
--------------------
Scope
-----
### Nature of proposed change
Bug-fixes to transport/rdma
### Implications on manageability
Remove the warning about creation of rdma volumes in CLI.
### Implications on presentation layer
TBD
### Implications on persistence layer
No impact
### Implications on 'GlusterFS' backend
No impact
### Modification to GlusterFS metadata
No impact
### Implications on 'glusterd'
No impact
How To Test
-----------
TBD
User Experience
---------------
TBD
Dependencies
------------
Better Peer identification
Documentation
-------------
TBD
Status
------
In development
Comments and Discussion
-----------------------
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