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13 days r/7966 chore(tvix/store): remove test-case dependencyFlorian Klink1-1/+0
Change-Id: I62c3b93af438fd6397ded85dd4fe5acc01e0093a Reviewed-on: https://cl.tvl.fyi/c/depot/+/11465 Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI Reviewed-by: Connor Brewster <cbrewster@hey.com>
2024-04-13 r/7900 feat(tvix/store/bin): add "copy" commandFlorian Klink1-0/+1
This allows copying individual store paths from the local /nix/store into tvix-store. As we don't support getting this information from Nix yet, we currently expect metadata to be provided externally: Nix' `exportReferencesGraph` feature contains pretty much all data we need for this. Expect a list of this information at a well-known key (`closure`, similar to nixpkgs' `pkgs/build-support/binary-cache/ default.nix`). We currently simply upload all store paths sequentially, without any parallelism or awareness in how the reference graph looks like. As long as the connected stores don't enforce this, this is fine, at least for now. Change-Id: Ib83c998465adddfdb110db994843c44e26b3d3d8 Reviewed-on: https://cl.tvl.fyi/c/depot/+/11397 Reviewed-by: raitobezarius <tvl@lahfa.xyz> Tested-by: BuildkiteCI Autosubmit: flokli <flokli@flokli.de>
2024-04-12 r/7885 chore(tvix): bump rstest to 0.19.0Florian Klink1-1/+1
Change-Id: Ib2f5e84fdb8be1210b3507da67d4fe84f061651e Reviewed-on: https://cl.tvl.fyi/c/depot/+/11387 Tested-by: BuildkiteCI Reviewed-by: Brian Olsen <me@griff.name> Autosubmit: flokli <flokli@flokli.de> Reviewed-by: raitobezarius <tvl@lahfa.xyz>
2024-04-09 r/7884 feat(tvix/store): add bigtable pathinfoservice backendFlorian Klink1-1/+14
Put behind the "cloud" backend, like in the `tvix-castore` crate. Change-Id: Ib38d198baf11ab2a4b6dc405121676147c424611 Reviewed-on: https://cl.tvl.fyi/c/depot/+/11362 Autosubmit: flokli <flokli@flokli.de> Reviewed-by: Connor Brewster <cbrewster@hey.com> Tested-by: BuildkiteCI
2024-03-28 r/7788 feat(tvix/store): add rstest-based PathInfoService testsFlorian Klink1-0/+2
This introduces rstest-based tests. We also add fixtures for creating some BlobService / DirectoryService out of thin air. To test a PathInfoService, we don't really care too much about its internal storage - ensuring they work is up to the castore tests. Change-Id: Ia62af076ef9c9fbfcf8b020a781454ad299d972e Reviewed-on: https://cl.tvl.fyi/c/depot/+/11272 Tested-by: BuildkiteCI Reviewed-by: Connor Brewster <cbrewster@hey.com>
2024-03-20 r/7749 refactor(tvix/castore): introduce "cloud" feature flagFlorian Klink1-1/+2
This controls whether tvix-castore has support for various cloud backends or not. Use this to control the set of feature flags for the object_store backend, and only enable the aws, azure and gcp ones if it's set. In the future this can be used to enable/disable other cloud backends too. Without feature flags, `object_store` already supports the `InMemory` and `LocalFilesystem` backends, and we also want to unconditionally enable the `http` one. Make sure at least the construction of these services is covered in the tests. Similarly, the tvix-store crate, which provides the tvix-store CLI has a `cloud` feature flag too (defaulting to enabled). Change-Id: I9fb9c87b740e7dc83f8ff7a0862905d036d513f2 Reviewed-on: https://cl.tvl.fyi/c/depot/+/11204 Autosubmit: flokli <flokli@flokli.de> Reviewed-by: raitobezarius <tvl@lahfa.xyz> Tested-by: BuildkiteCI
2024-03-18 r/7723 feat(tvix/store): support RUST_LOG env varFlorian Klink1-1/+1
This allows selectively increasing the log level for only parts of the stack. For example, the following RUST_LOG env var enables "tracing" level logging for `tvix_store` and `tvix_castore`, while keeping it at "info" for the rest of the stack: export RUST_LOG='info,tvix_store=trace,tvix_castore=trace' It only affects logs, not traces (if enabled). Change-Id: Ib936bd132a405f216e75c843db83fbd71d20a18a Reviewed-on: https://cl.tvl.fyi/c/depot/+/11182 Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI Reviewed-by: Connor Brewster <cbrewster@hey.com>
2024-03-16 r/7705 chore(tvix): bump tonic to 0.11.0Florian Klink1-4/+4
This bumps tonic and surrounding crates to 0.11.x. We added support for tonic 0.11.x into tokio-listener (https://github.com/vi/tokio-listener/pull/4), so that's bumped as well. Change-Id: Icfade5894403228299836fefb21b2f9ae59dbebb Reviewed-on: https://cl.tvl.fyi/c/depot/+/11156 Reviewed-by: Connor Brewster <cbrewster@hey.com> Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI
2024-03-03 r/7642 feat(tvix/store): use reqwests' rustls-native-roots featureFlorian Klink1-1/+1
This makes reqwest honor `SSL_CERT_FILE` - previously it was using the chain bundled in webpki-roots. `object_store` pulls in `reqwest` with this feature, and the cargo solver will enable that feature globally as soon as we pull it in, as it assumes features are additive. This requires setting `SSL_CERT_FILE` when running tests, otherwise they'll fail with the unhelpful "NotFound" error. This was quite some fun to debug, why adding `object_store` to tvix-castore suddenly made tvix-store tests fail! Change-Id: I64fc82b4d994715480efdb1ffecb279716456ab9 Reviewed-on: https://cl.tvl.fyi/c/depot/+/11090 Reviewed-by: raitobezarius <tvl@lahfa.xyz> Tested-by: BuildkiteCI
2024-02-20 r/7566 refactor(tvix/store/proto): use bstr::ByteSliceFlorian Klink1-0/+1
String::from_utf8_lossy simply discards invalid bytes, while bstr replaces them with their replacement character. Change-Id: Ib78ff36ca5faacc1ad60bc4ddde7b62773848c07 Reviewed-on: https://cl.tvl.fyi/c/depot/+/10981 Tested-by: BuildkiteCI Reviewed-by: Peter Kolloch <info@eigenvalue.net> Reviewed-by: flokli <flokli@flokli.de>
2024-01-05 r/7350 chore(tvix): bump test-case dep to 3.3.1Florian Klink1-1/+1
Change-Id: I643548d95a5fab84563c7cbe51ca2ce640c186a9 Reviewed-on: https://cl.tvl.fyi/c/depot/+/10537 Reviewed-by: raitobezarius <tvl@lahfa.xyz> Tested-by: BuildkiteCI Autosubmit: flokli <flokli@flokli.de>
2024-01-01 r/7308 feat(tvix/store): add opentelemetryFlorian Klink1-2/+7
This is behind the otlp feature flag (currently enabled by default). By default, this will try to push traces to a OTLP collector running at https://localhost:4317. You can make one available by running: ``` docker run -d --name jaeger \ -e COLLECTOR_ZIPKIN_HOST_PORT=:9411 \ -e COLLECTOR_OTLP_ENABLED=true \ -p 6831:6831/udp \ -p 6832:6832/udp \ -p 5778:5778 \ -p 16686:16686 \ -p 4317:4317 \ -p 4318:4318 \ -p 14250:14250 \ -p 14268:14268 \ -p 14269:14269 \ -p 9411:9411 --rm \ jaegertracing/all-in-one:1.42 ``` Started like that, jaeger brings a web interface at http://localhost:16686/search As documented in https://docs.rs/opentelemetry-otlp/latest/opentelemetry_otlp/, you can point this to another location by setting `OTEL_EXPORTER_OTLP_ENDPOINT`. Change-Id: Id1dca367d70027b2ea98bb70bcf99a68363ec2be Reviewed-on: https://cl.tvl.fyi/c/depot/+/8194 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su> Autosubmit: flokli <flokli@flokli.de> Reviewed-by: aaqaishtyaq <aaqaishtyaq@gmail.com>
2023-12-24 r/7261 chore(tvix): switch to upstream futures 0.3.30Florian Klink1-1/+1
The bugs have been fixed, https://github.com/rust-lang/futures-rs/pull/2801 and https://github.com/rust-lang/futures-rs/pull/2812 were merged and ended up in that release. Change-Id: Iefd990d2d1719b884504093343e54e9c5258e2e2 Reviewed-on: https://cl.tvl.fyi/c/depot/+/10414 Reviewed-by: raitobezarius <tvl@lahfa.xyz> Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI
2023-12-24 r/7258 refactor(tvix/castore): add RootNode impl for BTreeMap, mv fs testsFlorian Klink1-3/+0
cl/10378 did already move store/fs to castore/fs, but we kept the tests in tvix-store, as they were populating a PathInfoService to make nodes appear in the mount root. Update these tests to now just insert root nodes into a BTreeMap, and ensure we can use that as a RootNodes too. Change-Id: Iad7d1ee4f9423eb6e3a1da33f433842c9ae0de1f Reviewed-on: https://cl.tvl.fyi/c/depot/+/10410 Reviewed-by: raitobezarius <tvl@lahfa.xyz> Tested-by: BuildkiteCI Autosubmit: flokli <flokli@flokli.de>
2023-12-22 r/7256 chore(tvix): move store/fs to castore/fsFlorian Klink1-46/+5
With the recent introduction of the RootNodes trait, there's nothing in the fs module pulling in tvix-store dependencies, so it can live in tvix-castore. This allows other crates to make use of TvixStoreFS, without having to pull in tvix-store. For example, a tvix-build using a fuse mountpoint at /nix/store doesn't need a PathInfoService to hold the root nodes that should be present, but just a list. tvix-store now has a pathinfoservice/fs module, which contains the necessary glue logic to implement the RootNodes trait for a PathInfoService. To satisfy Rust orphan rules for trait implementations, we had to add a small wrapper struct. It's mostly hidden away by the make_fs helper function returning a TvixStoreFs. It can't be entirely private, as its still leaking into the concrete type of TvixStoreFS. tvix-store still has `fuse` and `virtiofs` features, but they now simply enable these features in the `tvix-castore` crate they depend on. The tests for the fuse functionality stay in tvix-store for now, as they populate the root nodes through a PathInfoService. Once above mentioned "list of root nodes" implementation exists, we might want to shuffle this around one more time. Fixes b/341. Change-Id: I989f664827a5a361b23b34368d242d10c157c756 Reviewed-on: https://cl.tvl.fyi/c/depot/+/10378 Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI Reviewed-by: sterni <sternenseemann@systemli.org>
2023-12-16 r/7224 chore(tvix/store): switch back to fuse-backend-rs upstreamFlorian Klink1-3/+1
The fix mentioned in Cargo.toml did land in https://github.com/cloud-hypervisor/fuse-backend-rs/pull/162. Change-Id: I4451f910806f05400f7e0f83581ae786f170b9e2 Reviewed-on: https://cl.tvl.fyi/c/depot/+/10375 Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI Reviewed-by: raitobezarius <tvl@lahfa.xyz>
2023-12-11 r/7158 chore(tvix): drop sled compression supportFlorian Klink1-1/+1
It's been a while since the last sled release, and that one binds to a pretty old version of zstd, requiring workarounds like cl/10090. Upstream sled main branch currently has zstd halfway patched out (it's a no-op, but the feature flag and options are still there), and it's in that state for a year. Rather than maintaining our own fork of sled, let's just stop using the compression feature in sled, dropping the version pin to zstd that way, removing the need for cl/10090. This doesn't mean we won't reintroduce per-blob compression - but we probably just won't let sled take care of the compression, but do it ourselves - which is necessary for more chunked blob storage anyways. Even though we do drop the feature flag, we still need to explicitly use use_compression(false). Change-Id: I0e4892d29e41c76653272dc1a3625180da6fee12 Reviewed-on: https://cl.tvl.fyi/c/depot/+/10257 Autosubmit: flokli <flokli@flokli.de> Reviewed-by: raitobezarius <tvl@lahfa.xyz> Tested-by: BuildkiteCI
2023-11-19 r/7038 feat(tvix/store/pathinfoservice): implement NixHTTPPathInfoServiceFlorian Klink1-0/+2
NixHTTPPathInfoService acts as a bridge in between the Nix HTTP Binary cache protocol provided by Nix binary caches such as cache.nixos.org, and the Tvix Store Model. It implements the [PathInfoService] trait in an interesting way: Every [PathInfoService::get] fetches the .narinfo and referred NAR file, inserting components into a [BlobService] and [DirectoryService], then returning a [PathInfo] struct with the root. Due to this being quite a costly operation, clients are expected to layer this service with store composition, so they're only ingested once. The client is expected to be (indirectly) using the same [BlobService] and [DirectoryService], so able to fetch referred Directories and Blobs. [PathInfoService::put] and [PathInfoService::nar] are not implemented and return an error if called. This behaves very similar to the nar-bridge-pathinfo code in nar-bridge, except it's now in Rust. Change-Id: Ia03d4fed9d0657965d100299af97cd917a03f2f0 Reviewed-on: https://cl.tvl.fyi/c/depot/+/10069 Tested-by: BuildkiteCI Autosubmit: flokli <flokli@flokli.de> Reviewed-by: raitobezarius <tvl@lahfa.xyz>
2023-10-14 r/6810 refactor(tvix/store): Upgrade tokio-listener to get tonic supportConnor Brewster1-2/+2
Tonic support was added to tokio-listener upstream which removes the need for use to have tonic compatibility wrapper types around it. See: https://github.com/vi/tokio-listener/pull/2 Fixes b/311 Change-Id: I04a2dbb3bc3c8bfe9339583c0b46070c7ec97811 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9721 Tested-by: BuildkiteCI Reviewed-by: flokli <flokli@flokli.de>
2023-10-12 r/6789 feat(tvix/store): enable tls[-roots] feature in tonicFlorian Klink1-1/+1
This teaches tonic to speak https, so `grpc+https` becomes a working connection string. Change-Id: I9c550ea665b829725b545a164cf6f78587bd5213 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9714 Autosubmit: flokli <flokli@flokli.de> Reviewed-by: Brian McGee <brian@bmcgee.ie> Tested-by: BuildkiteCI
2023-10-10 r/6769 feat(tvix/store): use tvix_compat::nar::writer::asyncedef1-2/+3
Change-Id: Iad36872244df6f2225a2884f6b20cacd8f918b31 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9619 Tested-by: BuildkiteCI Reviewed-by: flokli <flokli@flokli.de> Autosubmit: edef <edef@edef.eu>
2023-10-08 r/6743 test(tvix/store): use tokio-retry for exp backoffFlorian Klink1-0/+1
Rather than using this loop, use exponential backoff while waiting for the socket path to be created. Change-Id: I3056b1525784cd712b1d81f84876c9ca0be10dc6 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9569 Autosubmit: flokli <flokli@flokli.de> Reviewed-by: Connor Brewster <cbrewster@hey.com> Tested-by: BuildkiteCI
2023-10-08 r/6736 chore(tvix): bump tokio[-util], tonic, prostFlorian Klink1-7/+7
This bumps all these dependencies to their more recent versions. We have to enable the `macros` tonic feature, and looks like we should also enable `rt`, not only `rt-multi-thread`. Change-Id: Icc3600848fca0bacce24f4889d088e75711594ef Reviewed-on: https://cl.tvl.fyi/c/depot/+/8984 Reviewed-by: Connor Brewster <cbrewster@hey.com> Tested-by: BuildkiteCI Autosubmit: flokli <flokli@flokli.de> Reviewed-by: tazjin <tazjin@tvl.su>
2023-10-08 r/6723 chore(tvix/store): drop tonic-mock from dependenciesFlorian Klink1-1/+0
It's not used in here. Change-Id: If1dbf360ec37b649c27d3a9bf11f7bf0ca947631 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9558 Reviewed-by: Connor Brewster <cbrewster@hey.com> Autosubmit: flokli <flokli@flokli.de> Reviewed-by: edef <edef@edef.eu> Tested-by: BuildkiteCI
2023-10-07 r/6720 fix(tvix/store): Remove virtiofs from default featuresConnor Brewster1-1/+1
vhost-user-backend doesn't support macOS yet, so the virtiofs features will not work on macOS. This removes it as a default feature which makes `cargo build` work out of the box on macOS. The `virtiofs` feature is enabled for Linux when building via Nix, but if being built by cargo directly, the feature must be enabled via a cargo flag. Change-Id: I2aaca9582f8e3dbcf9ee5f1b9831d614909f3799 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9555 Reviewed-by: flokli <flokli@flokli.de> Tested-by: BuildkiteCI Autosubmit: Connor Brewster <cbrewster@hey.com>
2023-10-02 r/6687 fix(tvix/store): Fix FUSE support on MacOSBrian Olsen1-3/+3
This partially fixes b/312 and gets FUSE to work again on MacOS. It is mostly small type changes and an update to fuse-backend-rs because upstream currently doesn't work with MacFuse. It also sets the default FUSE thread count on MacOS to 1 because otherwise the mount command will hang when shutting down as only one thread gets ENODEV and all the others just keep blocking. Change-Id: Ifb3c4268caf296c487049c1dc4618acb32497f44 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9490 Tested-by: BuildkiteCI Reviewed-by: Connor Brewster <cbrewster@hey.com> Reviewed-by: flokli <flokli@flokli.de>
2023-09-26 r/6660 chore(tvix/[ca]store): allow building without tonic-reflectionFlorian Klink1-2/+2
- rename the feature to `tonic-reflection` in both tvix-store and tvix- castore. - set it to disabled in tvix-castore by default - enable it in tvix-store, and pull in tvix-castore with the feature enabled. Change-Id: Ie22833d85569502cae55812f6eeb17a9c15b9e2c Reviewed-on: https://cl.tvl.fyi/c/depot/+/9472 Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI Reviewed-by: raitobezarius <tvl@lahfa.xyz>
2023-09-26 r/6658 chore(tvix/store): only depend on vhost-user-fs if virtiofs enabledFlorian Klink1-6/+11
Change-Id: Iaf88d43df27b87548794a8dddc9a1e08279b8ffb Reviewed-on: https://cl.tvl.fyi/c/depot/+/9471 Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI Reviewed-by: raitobezarius <tvl@lahfa.xyz>
2023-09-26 r/6654 chore(tvix/store): move fuse-backend-rs back to upstreamFlorian Klink1-2/+2
It's in no release yet, but this is the current rev in master. Change-Id: I9e4bc2fde26e85c4182bd66b3e566c2d957072ed Reviewed-on: https://cl.tvl.fyi/c/depot/+/9469 Autosubmit: flokli <flokli@flokli.de> Reviewed-by: raitobezarius <tvl@lahfa.xyz> Tested-by: BuildkiteCI
2023-09-25 r/6653 feat(tvix/store): Support listening on UNIX domain socketsConnor Brewster1-0/+1
This adds support for listening on UNIX domain sockets via the tokio-listener crate. The crate will automatically determine whether to start a TCP or UNIX domain socket server based on the listen address. Unfortunately, it's not compatible with tonic right out of the box so I added some wrapper types to implement the necessary traits to make things work. We should investigate upstreaming a `tonic` option to the tokio-listener crate which implements the relevant `tonic` traits. Example: ``` $ tvix-store daemon -l /run/tvix-store.sock INFO tvix_store: tvix-store listening on /run/tvix-store.sock $ tvix-store mount -l /mnt/tvix --blob-service-addr grpc+unix:///run/tvix-store.sock --directory-service-addr grpc+unix:///run/tvix-store.sock --path-info-service-addr grpc+unix:///run/tvix-store.sock $ ls /mnt/tvix ``` Change-Id: I91c4a4b0c5a177b3b90e6c01a4e5d263130e6bdb Reviewed-on: https://cl.tvl.fyi/c/depot/+/9429 Tested-by: BuildkiteCI Reviewed-by: flokli <flokli@flokli.de> Reviewed-by: raitobezarius <tvl@lahfa.xyz>
2023-09-24 r/6642 feat(tvix/store/fs): Add support for virtiofs backendConnor Brewster1-1/+31
This adds a virtiofs daemon implementation which hooks into the existing tvix-store filesystem implementation that is used for FUSE. This allows adding the filesystem to a microvm without having to set up FUSE inside the guest. Change-Id: If80c36c9657f2289853e8d9a364bf4f1f7b7559c Reviewed-on: https://cl.tvl.fyi/c/depot/+/9344 Autosubmit: Connor Brewster <cbrewster@hey.com> Tested-by: BuildkiteCI Reviewed-by: flokli <flokli@flokli.de>
2023-09-22 r/6629 refactor(tvix): move castore into tvix-castore crateFlorian Klink1-6/+7
This splits the pure content-addressed layers from tvix-store into a `castore` crate, and only leaves PathInfo related things, as well as the CLI entrypoint in the tvix-store crate. Notable changes: - `fixtures` and `utils` had to be moved out of the `test` cfg, so they can be imported from tvix-store. - Some ad-hoc fixtures in the test were moved to proper fixtures in the same step. - The protos are now created by a (more static) recipe in the protos/ directory. The (now two) golang targets are commented out, as it's not possible to update them properly in the same CL. This will be done by a followup CL once this is merged (and whitby deployed) Bug: https://b.tvl.fyi/issues/301 Change-Id: I8d675d4bf1fb697eb7d479747c1b1e3635718107 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9370 Reviewed-by: tazjin <tazjin@tvl.su> Reviewed-by: flokli <flokli@flokli.de> Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI Reviewed-by: Connor Brewster <cbrewster@hey.com>
2023-09-22 r/6627 chore(tvix): remove some unused crate dependenciesFlorian Klink1-4/+0
Change-Id: I31b0e7be3a2ebc268c6f4045ba282e8fb1c72a64 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9375 Tested-by: BuildkiteCI Autosubmit: flokli <flokli@flokli.de> Reviewed-by: Connor Brewster <cbrewster@hey.com>
2023-09-21 r/6623 refactor(tvix/store): Asyncify PathInfoService and DirectoryServiceConnor Brewster1-2/+3
We've decided to asyncify all of the services to reduce some of the pains going back and for between sync<->async. The end goal will be for all the tvix-store internals to be async and then expose a sync interface for things like tvix eval io. Change-Id: I97c71f8db1d05a38bd8f625df5087d565705d52d Reviewed-on: https://cl.tvl.fyi/c/depot/+/9369 Autosubmit: Connor Brewster <cbrewster@hey.com> Tested-by: BuildkiteCI Reviewed-by: flokli <flokli@flokli.de>
2023-09-20 r/6622 refactor(tvix/store/fs): Separate FUSE and filesystem codeConnor Brewster1-1/+2
In prepration for adding virtiofs support, I thought it would make sense to split out the filesystem implementation from FUSE itself. The `fs` module holds the tvix-store filesystem implemetation and the `fuse` module holds the code to spawn a FUSE daemon backed by multiple threads. Change-Id: I8c58447b8c3aa016a613068f8e7ec166554e237c Reviewed-on: https://cl.tvl.fyi/c/depot/+/9343 Reviewed-by: flokli <flokli@flokli.de> Tested-by: BuildkiteCI Autosubmit: Connor Brewster <cbrewster@hey.com>
2023-09-20 r/6621 refactor(tvix/store/fuse): Switch from fuser to fuse-backend-rsConnor Brewster1-3/+7
This switches the FUSE implementation from fuser to fuse-backend-rs. fuse-backend-rs is designed to work with both FUSE and virtiofs. Virtiofs support will make it possible to plug the tvix-store into a microvm and have `/nix/store` access without having to setup FUSE inside the guest. Additionally fuse-backend-rs has nice support for running multiple FUSE threads and has some async support. The goal of this commit is to mechanically switch over to fuse-backend-rs with minimal changes. I did have to add some locks here and there because fuse-backend-rs uses `&self` on all methods whereas fuser uses `&mut self`. `&self` is required for concurrent access to the FUSE server, so this makes sense. We can consider switching to concurrent maps and use some other techniques to reduce lock contention and critical section size. Issue: https://b.tvl.fyi/issues/305 Change-Id: Icde5a58c6eef98f8984c1e04e980b756dfb76b47 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9341 Tested-by: BuildkiteCI Reviewed-by: flokli <flokli@flokli.de>
2023-09-18 r/6606 refactor(tvix/store/blobsvc): make BlobStore asyncFlorian Klink1-1/+2
We previously kept the trait of a BlobService sync. This however had some annoying consequences: - It became more and more complicated to track when we're in a context with an async runtime in the context or not, producing bugs like https://b.tvl.fyi/issues/304 - The sync trait shielded away async clients from async worloads, requiring manual block_on code inside the gRPC client code, and spawn_blocking calls in consumers of the trait, even if they were async (like the gRPC server) - We had to write our own custom glue code (SyncReadIntoAsyncRead) to convert a sync io::Read into a tokio::io::AsyncRead, which already existed in tokio internally, but upstream ia hesitant to expose. This now makes the BlobService trait async (via the async_trait macro, like we already do in various gRPC parts), and replaces the sync readers and writers with their async counterparts. Tests interacting with a BlobService now need to have an async runtime available, the easiest way for this is to mark the test functions with the tokio::test macro, allowing us to directly .await in the test function. In places where we don't have an async runtime available from context (like tvix-cli), we can pass one down explicitly. Now that we don't provide a sync interface anymore, the (sync) FUSE library now holds a pointer to a tokio runtime handle, and needs to at least have 2 threads available when talking to a blob service (which is why some of the tests now use the multi_thread flavor). The FUSE tests got a bit more verbose, as we couldn't use the setup_and_mount function accepting a callback anymore. We can hopefully move some of the test fixture setup to rstest in the future to make this less repetitive. Co-Authored-By: Connor Brewster <cbrewster@hey.com> Change-Id: Ia0501b606e32c852d0108de9c9016b21c94a3c05 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9329 Reviewed-by: Connor Brewster <cbrewster@hey.com> Tested-by: BuildkiteCI Reviewed-by: raitobezarius <tvl@lahfa.xyz>
2023-09-05 r/6557 feat(tvix/store): fix ctrl-c handling on mount commandFlorian Klink1-1/+1
This enables the tokio `signal` feature, and registers a ctrl_c signal handler, which will use the unmount handle to unmount in case a ctrl-c signal is received. This avoids having disconnected mountpoints when Ctrl-C'ing a `tvix-store mount` invocation. In case the filesystem is unmounted externally (via `umount /path/to/ mountpoint`), the future is waiting for the signal is never resolved and the task is stopped. Change-Id: I149f705a6cb50188177f2a6c6a5fcd77218e2a3f Reviewed-on: https://cl.tvl.fyi/c/depot/+/9218 Reviewed-by: tazjin <tazjin@tvl.su> Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI
2023-09-05 r/6553 chore(tvix/store): drop walkdir workaround for symlinks at rootFlorian Klink1-1/+1
https://github.com/BurntSushi/walkdir/pull/170 got merged, meaning we don't need to keep our own logic in here anymore. Our test cases already cover this. Change-Id: Ied3043ee651c8aafa10271c1e1ca5d460fb6c0b8 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9269 Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2023-09-04 r/6550 refactor(tvix/{cli,store}): move TvixStoreIO to tvix-cli crateFlorian Klink1-1/+0
This trait is eval-specific, there's no point in dealing with these things in tvix-store. This implements the EvalIO interface for a Tvix store. The proper place for this glue code (for now) is tvix-cli, which knows about both tvix-store and tvix-eval. There's one annoyance with this move: The `tvix-store import` subcommand previously also used the TvixStoreIO implementation (because it conveniently did what we wanted). Some of this code had to be duplicated, mostly logic to calculate the NAR-based output path and create the PathInfo object. Some, but potentially more of this can be extracted into helper functions in a shared crate, and then be used from both TvixStoreIO in tvix-cli as well as the tvix-store CLI entrypoint. Change-Id: Ia7515e83c1b54f95baf810fbd8414c5521382d40 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9212 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su> Autosubmit: flokli <flokli@flokli.de>
2023-06-14 r/6302 feat(tvix/store/blobsvc): add from_addrFlorian Klink1-0/+1
This allows constructing blob stores with a URL syntax at runtime, by passing the --blob-service-addr arg. We probably still want to have some builder pattern here, to allow additional schemes to be registered. Change-Id: Ie588ff7a7c6fb64c9474dfbd2e4bc5f168dfd778 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8742 Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2023-06-10 r/6261 chore(tvix/store): add fuse featureFlorian Klink1-1/+10
This brings in fuse (via the `fuser` crate), and adds pkg-config and libfuse to the dev shell, so `cargo build` can link against it. Change-Id: I0d11607490e27d946bdf92b0b9e45f9ab644ba74 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8664 Autosubmit: flokli <flokli@flokli.de> Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI
2023-05-24 r/6191 feat(tvix/store): implement TvixStoreIOFlorian Klink1-0/+3
This providesEvalIO, asking given PathInfoService, DirectoryService and BlobService. Change-Id: I32f210f5a7aa8173ad9a7d53e8a5ac03619f527a Reviewed-on: https://cl.tvl.fyi/c/depot/+/8561 Tested-by: BuildkiteCI Autosubmit: flokli <flokli@flokli.de> Reviewed-by: tazjin <tazjin@tvl.su>
2023-05-11 r/6133 refactor(tvix/store): remove ChunkServiceFlorian Klink1-1/+2
Whether chunking is involved or not, is an implementation detail of each Blobstore. Consumers of a whole blob shouldn't need to worry about that. It currently is not visible in the gRPC interface either. It shouldn't bleed into everything. Let the BlobService trait provide `open_read` and `open_write` methods, which return handles providing io::Read or io::Write, and leave the details up to the implementation. This means, our custom BlobReader module can go away, and all the chunking bits in there, too. In the future, we might still want to add more chunking-aware syncing, but as a syncing strategy some stores can expose, not as a fundamental protocol component. This currently needs "SyncReadIntoAsyncRead", taken and vendored in from https://github.com/tokio-rs/tokio/pull/5669. It provides a AsyncRead for a sync Read, which is necessary to connect our (sync) BlobReader interface to a GRPC server implementation. As an alternative, we could also make the BlobReader itself async, and let consumers of the trait (EvalIO) deal with the async-ness, but this is less of a change for now. In terms of vendoring, I initially tried to move our tokio crate to these commits, but ended up in version incompatibilities, so let's vendor it in for now. Change-Id: I5969ebbc4c0e1ceece47981be3b9e7cfb3f59ad0 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8551 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2023-05-10 r/6131 chore(tvix): bump cargo dependenciesFlorian Klink1-3/+3
Change-Id: I6b872a33885f4e29082c554062a60317db754188 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8550 Reviewed-by: tazjin <tazjin@tvl.su> Tested-by: BuildkiteCI Autosubmit: flokli <flokli@flokli.de> Reviewed-by: Johannes Kirschbauer <hsjobeki+github@gmail.com>
2023-03-27 r/6044 feat(tvix/store/directorysvc): add gRPC clientFlorian Klink1-1/+2
This provides a GRPCDirectoryService struct implementing DirectoryService, allowing a client to Directory objects from a (remote) tvix-store. Remote in this case is anything outside the current process, be it another process, or an endpoint on the network. To keep the sync interface in the `DirectoryService` trait, a handle to some tokio runtime needs to be passed into the constructor, and the two methods use `self.tokio_handle.spawn` to start an async function, and `self.tokio_handle.block_on` to wait for its completion. The client handle, called `grpc_client` itself is easy to clone, and treats concurrent requests internally. This means, even though we keep the `DirectoryService` trait sync, there's nothing preventing it from being used concurrently, let's say from multiple threads. There's still two limitations for now: 1) The trait doesn't make use of the `recursive` request, which currently leads to a N+1 query problem. This can be fixed by `GRPCDirectoryService` having a reference to another `DirectoryService` acting as the local side. I want to wait for general store composition code to pop up before manually coding this here. 2) It's currently only possible to put() leaf directory nodes, as the request normally requires uploading a whole closure. We might want to add another batch function to upload a whole closure, and/or do this batching in certain cases. This still needs some more thinking. Change-Id: I7ffec791610b72c0960cf5307cefbb12ec946dc9 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8336 Tested-by: BuildkiteCI Autosubmit: flokli <flokli@flokli.de> Reviewed-by: tazjin <tazjin@tvl.su>
2023-03-14 r/6007 chore(tvix/store): drop separate bin packageFlorian Klink1-4/+1
Apparently, having multiple packages with the same path is a bad thing: ``` The bin target `tvix-store` in package `tvix-store-bin v0.1.0 (/home/flokli/tvl/tvix/store)` has the same output filename as the lib target `tvix_store` in package `tvix-store-bin v0.1.0 (/home/flokli/tvl/tvix/store)`. Colliding filename is: /home/flokli/tvl/tvix/target/doc/tvix_store/index.html The output filenames should be unique. This is a known bug where multiple crates with the same name use the same path; see <https://github.com/rust-lang/cargo/issues/6313>. ``` Change-Id: Ic785c0349070783baf5e8fd23f5fb60603a3c995 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8308 Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2023-03-13 r/5959 refactor(tvix/store): use read_all_and_chunk in gRPC blobserviceFlorian Klink1-0/+1
This was the last piece of code using BlobWriter. We can also use `read_all_and_chunk`, it's just requires a bit more plumbing: - The data coming from the client (stream) needs to be mapped (we extract the .data field). - The stream needs to be turned into an (async) reader - The reader needs to be made sync, and that code using the sync reader needs to be in a `task::spawn_blocking`. Change-Id: I4e374e1a9f47d5a0933f59a8f5c121185a5f3e95 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8260 Autosubmit: flokli <flokli@flokli.de> Reviewed-by: raitobezarius <tvl@lahfa.xyz> Tested-by: BuildkiteCI Reviewed-by: tazjin <tazjin@tvl.su>
2023-03-11 r/5953 refactor(tvix/store): bump fastcdc depFlorian Klink1-1/+1
This removes the use of Box::new, switching fastcdc to version 3.0.2 with https://github.com/nlfiedler/fastcdc-rs/issues/25 fixed. Change-Id: I64f388b9e0a7f358e25a8bb7ca0e4df1d3bb01c4 Reviewed-on: https://cl.tvl.fyi/c/depot/+/8249 Tested-by: BuildkiteCI Reviewed-by: raitobezarius <tvl@lahfa.xyz> Reviewed-by: tazjin <tazjin@tvl.su> Autosubmit: flokli <flokli@flokli.de>
2023-03-10 r/5939 feat(tvix/store): use rayon to upload chunks concurrentlyFlorian Klink1-1/+2
Look at the data that's written to us, and upload all chunks but the rest in parallel, using rayon. This required moving `upload_chunk` outside the struct, and accepting a ChunkService to use for upload (which it was previously getting from `self.chunk_service`). This doesn't speed up things too much for now, because things are still mostly linear. Change-Id: Id785b5705c3392214d2da1a5b6a182bcf5048c8d Reviewed-on: https://cl.tvl.fyi/c/depot/+/8195 Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI Reviewed-by: raitobezarius <tvl@lahfa.xyz>