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4
Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
 Chris Lu
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2386fa550a |
grpc: don't tear down the shared master connection on a caller's own timeout (#9775)
A Canceled/DeadlineExceeded from the caller's per-request context was treated like a dead channel: it closed the shared cached ClientConn and cancelled every other in-flight RPC on it with "the client connection is closing". Under a burst of concurrent chunk assigns (e.g. a large S3 multipart upload) one slow assign hitting its 10s attempt timeout could poison the connection for all the rest, cascading into a flood of 500s. Thread the caller's context into shouldInvalidateConnection and only invalidate on Canceled/DeadlineExceeded while that context is still live, which isolates the genuine stale-channel signal (a peer restart behind a k8s Service VIP). To carry the context, add a ctx parameter to the existing WithGrpcClient, WithMasterClient, and WithMasterServerClient; the master assign and volume-lookup paths pass their per-attempt context and every other caller passes context.Background(). |
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Chris Lu
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a64483885c |
fix(pb): skip Unix-socket gRPC registration on Windows (#9430) (#9434)
The same-host gRPC fast path registered /tmp/...sock paths and dialed
them with net.Listen("unix", ...) / net.Dial("unix", ...). Those paths
are POSIX-only, so on Windows the listener failed at startup and every
local gRPC call routed through the registered port lost its transport.
Gate RegisterLocalGrpcSocket to return early on Windows. ServeGrpcOnLocalSocket
and resolveLocalGrpcSocket already short-circuit when no socket is registered,
so all same-host RPCs fall back to TCP without touching any callsite.
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Chris Lu
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135af25b55 |
fix(grpc): require host match before routing dials to local Unix socket (#9254) (#9257)
* fix(grpc): require host match before routing dials to local Unix socket (#9254) resolveLocalGrpcSocket keyed the Unix-socket hijack on port alone, so a remote peer reusing a local gRPC port (e.g. a standalone `weed volume` defaulting port.grpc=17334 against a `weed server` whose in-process volume socket is also on 17334) had its inbound RPCs silently rerouted to the local socket. In a cross-DC replication=100 cluster this surfaced as persistent volume-grow failure: both AllocateVolume RPCs landed on the local volume server, the second returned "Volume Id N already exists!", the grow rolled back, and S3 PUTs to the new collection returned 500. Track a per-port set of host strings that count as "this machine" and require the dial host to be in that set before redirecting. Loopback aliases (localhost, 127.0.0.1, ::1, "") are always included so same-process dials via loopback still take the socket fast path. * test(grpc): cover empty-host bare-port dial in local-socket regression test The empty alias is registered explicitly so SplitHostPort outputs like ":17334" (which can occur when a caller dials a bare port) take the local-socket fast path. Add a case so that path is exercised. |
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Chris Lu
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da2e90aefd |
fix(mount): sanitize non-UTF-8 filenames; keep marshal errors per-request (#9207)
* fix(mount): sanitize non-UTF-8 filenames; keep marshal errors per-request (#9139) A single file with invalid-UTF-8 bytes in its name (e.g. a GNOME Trash "partial" like \x10\x98=\\\x8a\x7f.trashinfo.9a51454f.partial) made every FUSE-initiated filer RPC fail with: rpc error: code = Internal desc = grpc: error while marshaling: string field contains invalid UTF-8 and then produced an avalanche of "connection is closing" errors on unrelated LookupEntry / ReadDirAll / UpdateEntry calls, causing the volume-server QPS dips reported in #9139. Root cause is twofold: 1. Proto3 `string` fields require valid UTF-8, but the FUSE kernel passes raw name bytes. Create/Mknod/Mkdir/Unlink/Rmdir/Rename/Lookup/Link/ Symlink all forwarded those bytes directly into CreateEntryRequest.Name, DeleteEntryRequest.Name, StreamRenameEntryRequest.{Old,New}Name and Entry.Name. saveDataAsChunk also copied the FullPath into AssignVolumeRequest.Path unchecked. 2. When the marshal failed, shouldInvalidateConnection treated the resulting codes.Internal as a connection problem and dropped the shared cached ClientConn — canceling every other in-flight RPC on it. Fix: - Add sanitizeFuseName (strings.ToValidUTF8 with '?' replacement, matching util.FullPath.DirAndName) and make checkName return the sanitized name. Apply at every FUSE entry point that passes a name to the filer RPC, including Unlink/Rmdir (which did not previously call checkName) and both oldName/newName in Rename. Add a backstop scrub for AssignVolumeRequest.Path so async flush paths cannot reintroduce invalid bytes from a pre-sanitization cached FullPath. - In weed/pb.shouldInvalidateConnection, detect client-side marshal errors via the gRPC library's "error while marshaling" prefix and return false: the connection is healthy, only the request is bad. Refs: https://github.com/seaweedfs/seaweedfs/issues/9139#issuecomment-4301184231 * fix(mount,util): use '_' for invalid-UTF-8 replacement (URL-safe) Sanitized filenames flow downstream into HTTP URLs (volume-server uploads, filer HTTP API, S3/WebDAV gateways). '?' is the URL query-string delimiter and would split the path the first time the name lands in one, so swap every invalid-UTF-8 replacement to '_'. This covers the two pre-existing sites in weed/util/fullpath.go as well, keeping all paths sanitized the same way. * refactor(pb): detect client-side marshal errors via errors.As, not substring Replace the raw `strings.Contains(err.Error(), ...)` check with a type-based carve-out: use errors.As against the `GRPCStatus() *Status` interface to pull the original Status out of any fmt.Errorf("...: %w") wrapping, then match the library-owned "grpc:" prefix on that Status's Message. Why not errors.Is against a proto-level sentinel: gRPC's encode() collapses the inner proto error with "%v" (stringification) before wrapping it in a Status, so the original error type does not survive into the caller. The Status itself is the structural signal that does survive. Why not status.FromError: when the caller wraps the Status error with fmt.Errorf("...: %w", ...), status.FromError rewrites Status.Message with the full err.Error() of the outermost wrapper, which defeats a prefix check on the library-owned message. errors.As gives us the original Status whose Message is still verbatim from the gRPC library. A new test asserts that a plain errors.New("grpc: error while marshaling: …") — i.e. the same text attached to something that is NOT a gRPC status — does not short-circuit invalidation, so we never silently keep a cached connection alive based on a coincidental substring match. * refactor(util): centralize UTF-8 sanitization; add FullPath.Sanitized Addresses review feedback on PR #9207. Nitpick: every invalid-UTF-8 replacement across the codebase (DirAndName, Name, mount.sanitizeFuseName, the weedfs_write.go backstop) now goes through a single util.SanitizeUTF8Name helper, so the replacement char ('_' — URL-safe) is chosen in one place. Outside-diff: three proto fields took raw FullPath strings that could break marshaling if an entry ever carried invalid UTF-8 (CreateEntryRequest.Directory in Mkdir, DeleteEntryRequest.Directory in Unlink, AssignVolumeRequest.Path in command_fs_merge_volumes). The reviewer's suggested fix — using DirAndName() — would have silently changed Directory from parent to grandparent, because DirAndName sanitizes only the trailing component. Added FullPath.Sanitized(), which scrubs every component, and applied it at the three sites. Exposure is narrow in practice (FUSE-boundary sanitization and the gRPC-side isClientSideMarshalError carve-out already cover the #9139 cascade), but the defense-in-depth is cheap and consistent with the existing AssignVolume backstop. New tests in weed/util/fullpath_test.go document: - SanitizeUTF8Name: valid UTF-8 passes through unchanged; invalid bytes become '_' (not '?', which is URL-special). - FullPath.Sanitized: scrubs bytes in any component, not just the last. - FullPath.DirAndName: dir remains raw on purpose — callers needing a clean full path must use Sanitized(). The test pins this behavior so it is not accidentally "fixed" in a way that changes the (dir, name) semantics callers depend on. |