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dd4bd5065b
Adds an option to build RDMA support as a module:
make BUILD_RDMA=module
To start valkey-server with RDMA, use a command line like the following:
./src/valkey-server --loadmodule src/valkey-rdma.so \
port=6379 bind=xx.xx.xx.xx
* Implement server side of connection module only, this means we can
*NOT*
compile RDMA support as built-in.
* Add necessary information in README.md
* Support 'CONFIG SET/GET', for example, 'CONFIG Set rdma.port 6380',
then
check this by 'rdma res show cm_id' and valkey-cli (with RDMA support,
but not implemented in this patch).
* The full listeners show like:
listener0:name=tcp,bind=*,bind=-::*,port=6379
listener1:name=unix,bind=/var/run/valkey.sock
listener2:name=rdma,bind=xx.xx.xx.xx,bind=yy.yy.yy.yy,port=6379
listener3:name=tls,bind=*,bind=-::*,port=16379
Because the lack of RDMA support from TCL, use a simple C program to
test
Valkey Over RDMA (under tests/rdma/). This is a quite raw version with
basic
library dependence: libpthread, libibverbs, librdmacm. Run using the
script:
./runtest-rdma [ OPTIONS ]
To run RDMA in GitHub actions, a kernel module RXE for emulated soft
RDMA, needs
to be installed. The kernel module source code is fetched a repo
containing only
the RXE kernel driver from the Linux kernel, but stored in an separate
repo to
avoid cloning the whole Linux kernel repo.
----
Since 2021/06, I created a
[PR](https://github.com/redis/redis/pull/9161) for *Redis Over RDMA*
proposal. Then I did some work to [fully abstract connection and make
TLS dynamically loadable](https://github.com/redis/redis/pull/9320), a
new connection type could be built into Redis statically, or a separated
shared library(loaded by Redis on startup) since Redis 7.2.0.
Base on the new connection framework, I created a new
[PR](https://github.com/redis/redis/pull/11182), some
guys(@xiezhq-hermann @zhangyiming1201 @JSpewock @uvletter @FujiZ)
noticed, played and tested this PR. However, because of the lack of time
and knowledge from the maintainers, this PR has been pending about 2
years.
Related doc: [Introduce *Valkey Over RDMA*
specification](https://github.com/valkey-io/valkey-doc/pull/123). (same
as Redis, and this should be same)
Changes in this PR:
- implement *Valkey Over RDMA*. (compact the Valkey style)
Finally, if this feature is considered to merge, I volunteer to maintain
it.
---------
Signed-off-by: zhenwei pi <pizhenwei@bytedance.com>
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./tests/rdma/run.py $*
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