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Introduce Valkey Over RDMA transport (experimental) (#477) 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>

2024-07-15 20:04:22 +08:00

./tests/rdma/run.py $*