Gate native RDMA, cuObject, and cuobjclient implementations behind the
rdma build tag while keeping fallback stubs available for standard builds.
Preserve the separate cuobjclient_host configuration, clarify unsupported
platform errors, and update Makefile RDMA targets to pass the required tags
and disable VCS stamping.
Co-authored-by: Ben McClelland <ben.mcclelland@versity.com>
Two-phase RC transfers were invisible to the access log, metrics,
and bucket notifications: every outcome record on the S3 surface is
driven by the fiber request context, and the RC wire requests carry
the transfer session rather than the object.
Publish one record per session by tracking the operational context
from PREPARE through completion. A tracker table registers each
successfully prepared session with its account, region, object, and
start time; whichever path confirms the final outcome first (READY
completion, READY failure, or the reaper teardown callback) claims
the entry and publishes exactly once. Sessions that end before
PREPARE succeeds publish a request record directly.
The record is emitted through a synthetic fiber context carrying
the object path and the captured locals, so the existing logger,
metrics manager, and event sender produce the same schema as the
S3 surface without any interface change. Bucket notifications fire
for completed PUTs.
The gateway creates the operational services inside RunVersityGW,
after the RC routes exist. Add an OnServicesReady callback to the
embedded gateway config and wire it in vgwrdma to hand the services
to the RC routes and install the teardown callback.
Add a SessionsSnapshot view over the new C ABI entry point and
serve it from the admin server as GET /rc-sessions. The admin server
gains a WithAdminRoute option so an embedding binary can register
extra admin routes that run with the same signature verification and
admin checks as the built-in endpoints; vgwrdma registers the
snapshot there when the RC feature is enabled. The route replies
with the usual XML error surface so unsigned or non-admin requests
get a 403 rather than a generic 500. Stub builds return a not
supported error, keeping the build matrix unchanged.
Wire C-side diagnostics (session reap, READY data phase outcome,
init failures) through a sink callback so the gateway can surface
them next to its own logs instead of losing them in stderr noise.
The sink is a plain C function pointer installed once after init
and valid until destroy: the Go side registers a fixed cgo
trampoline (closures cannot cross the boundary), copies the
message immediately per the lifetime contract, and never runs
under the session map lock. Error-level lines keep the existing
stderr output; --debug enables the level-2 diagnostic stream.
Bind the RC session server archive through cgo: Init opens the
verbs device with the resource limits, and the RCSvc wrapper
carries the admission gate handlers use around every session
call (TryEnter/Leave), a service-lifetime context that Close
cancels so in-flight handler I/O unblocks during shutdown, and
an idempotent Close that marks every session for reaping, waits
for admitted calls to drain, and destroys the server.
The rest of the surface maps the C ABI one-to-one: prepare,
ready (with the transfer outcome returned atomically in the
reply), staging borrow/finish, the put-view handoff, session
introspection, and cancel. Non-linux or non-cgo builds compile
against a stub so the package is portable.
Nothing imports the package yet; the gateway integration that
links and exercises it follows.
Signed-off-by: Jihyeon Gim <potatogim@potatogim.net>
Eric EntzelandBen McClelland
Jihyeon Gim