forked from Deuxfleurs/garage
Add support for an LSM-tree-based backend with Fjall
This commit is contained in:
parent
906c8708fd
commit
9e576e4f35
GPG key ID:
7778B323E465AABB
10 changed files with 628 additions and 36 deletions
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@ -37,6 +37,8 @@ steps:
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- GARAGE_TEST_INTEGRATION_DB_ENGINE=lmdb ./result/bin/integration-* || (cat tmp-garage-integration/stderr.log; false)
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- nix-shell --attr ci --run "killall -9 garage" || true
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- GARAGE_TEST_INTEGRATION_DB_ENGINE=sqlite ./result/bin/integration-* || (cat tmp-garage-integration/stderr.log; false)
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- nix-shell --attr ci --run "killall -9 garage" || true
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- GARAGE_TEST_INTEGRATION_DB_ENGINE=fjall ./result/bin/integration-* || (cat tmp-garage-integration/stderr.log; false)
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- rm result
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- rm -rv tmp-garage-integration
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227
Cargo.lock
generated
227
Cargo.lock
generated
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@ -54,9 +54,9 @@ dependencies = [
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[[package]]
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name = "ahash"
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version = "0.8.7"
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version = "0.8.11"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "77c3a9648d43b9cd48db467b3f87fdd6e146bcc88ab0180006cef2179fe11d01"
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checksum = "e89da841a80418a9b391ebaea17f5c112ffaaa96f621d2c285b5174da76b9011"
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dependencies = [
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"cfg-if",
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"getrandom",
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@ -793,7 +793,7 @@ dependencies = [
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"num-traits",
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"serde",
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"wasm-bindgen",
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"windows-targets 0.52.0",
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"windows-targets 0.52.6",
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]
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[[package]]
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@ -905,9 +905,9 @@ dependencies = [
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[[package]]
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name = "crc32fast"
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version = "1.4.0"
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version = "1.4.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "b3855a8a784b474f333699ef2bbca9db2c4a1f6d9088a90a2d25b1eb53111eaa"
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checksum = "a97769d94ddab943e4510d138150169a2758b5ef3eb191a9ee688de3e23ef7b3"
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dependencies = [
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"cfg-if",
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]
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@ -921,6 +921,15 @@ dependencies = [
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"crossbeam-utils",
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]
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[[package]]
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name = "crossbeam-epoch"
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version = "0.9.18"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "5b82ac4a3c2ca9c3460964f020e1402edd5753411d7737aa39c3714ad1b5420e"
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dependencies = [
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"crossbeam-utils",
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]
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[[package]]
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name = "crossbeam-queue"
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version = "0.3.11"
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@ -930,6 +939,16 @@ dependencies = [
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"crossbeam-utils",
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]
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[[package]]
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name = "crossbeam-skiplist"
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version = "0.1.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "df29de440c58ca2cc6e587ec3d22347551a32435fbde9d2bff64e78a9ffa151b"
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dependencies = [
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"crossbeam-epoch",
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"crossbeam-utils",
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]
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[[package]]
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name = "crossbeam-utils"
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version = "0.8.19"
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@ -1064,6 +1083,12 @@ dependencies = [
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"subtle",
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]
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[[package]]
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name = "double-ended-peekable"
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version = "0.1.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "c0d05e1c0dbad51b52c38bda7adceef61b9efc2baf04acfe8726a8c4630a6f57"
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[[package]]
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name = "dyn-clone"
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version = "1.0.16"
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@ -1194,6 +1219,22 @@ version = "0.4.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "0ce7134b9999ecaf8bcd65542e436736ef32ddca1b3e06094cb6ec5755203b80"
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[[package]]
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name = "fjall"
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version = "1.5.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e2fd11be247941253b9861c7ca94526d092d8311ac0a1740415242e3d9efd7a5"
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dependencies = [
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"byteorder",
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"crc32fast",
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"fs_extra",
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"log",
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"lsm-tree",
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"path-absolutize",
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"std-semaphore",
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"tempfile",
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]
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[[package]]
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name = "fnv"
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version = "1.0.7"
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@ -1213,6 +1254,12 @@ dependencies = [
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name = "format_table"
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version = "0.1.1"
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[[package]]
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name = "fs_extra"
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version = "1.3.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "42703706b716c37f96a77aea830392ad231f44c9e9a67872fa5548707e11b11c"
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[[package]]
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name = "futures"
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version = "0.3.30"
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@ -1445,6 +1492,7 @@ name = "garage_db"
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version = "1.0.1"
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dependencies = [
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"err-derive",
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"fjall",
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"heed",
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"hexdump",
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"mktemp",
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@ -1700,6 +1748,12 @@ dependencies = [
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"subtle",
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]
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[[package]]
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name = "guardian"
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version = "1.2.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "493913a18c0d7bebb75127a26a432162c59edbe06f6cf712001e3e769345e8b5"
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[[package]]
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name = "h2"
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version = "0.3.24"
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@ -2462,9 +2516,37 @@ dependencies = [
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[[package]]
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name = "log"
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version = "0.4.20"
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version = "0.4.22"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "b5e6163cb8c49088c2c36f57875e58ccd8c87c7427f7fbd50ea6710b2f3f2e8f"
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checksum = "a7a70ba024b9dc04c27ea2f0c0548feb474ec5c54bba33a7f72f873a39d07b24"
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[[package]]
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name = "lsm-tree"
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version = "1.5.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e6b7522d314955643781c4050b48477985e61f892434e14e9e6148d27c60435d"
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dependencies = [
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"byteorder",
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"crc32fast",
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"crossbeam-skiplist",
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"double-ended-peekable",
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"guardian",
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"log",
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"lz4_flex",
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"path-absolutize",
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"quick_cache",
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"self_cell",
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"tempfile",
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]
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[[package]]
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name = "lz4_flex"
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version = "0.11.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "75761162ae2b0e580d7e7c390558127e5f01b4194debd6221fd8c207fc80e3f5"
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dependencies = [
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"twox-hash",
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]
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[[package]]
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name = "matchers"
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@ -2893,6 +2975,24 @@ version = "1.0.14"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "de3145af08024dea9fa9914f381a17b8fc6034dfb00f3a84013f7ff43f29ed4c"
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[[package]]
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name = "path-absolutize"
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version = "3.1.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e4af381fe79fa195b4909485d99f73a80792331df0625188e707854f0b3383f5"
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dependencies = [
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"path-dedot",
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]
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[[package]]
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name = "path-dedot"
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version = "3.1.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "07ba0ad7e047712414213ff67533e6dd477af0a4e1d14fb52343e53d30ea9397"
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dependencies = [
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"once_cell",
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]
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[[package]]
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name = "pem"
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version = "3.0.3"
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@ -3195,6 +3295,17 @@ dependencies = [
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"serde",
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]
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[[package]]
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name = "quick_cache"
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version = "0.6.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "2ec0b6fed0a0ff01fa82d0c8982389375dd59c72dae84d4f8a15b1a894c273f7"
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dependencies = [
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"ahash",
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"equivalent",
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"hashbrown 0.14.3",
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]
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[[package]]
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name = "quote"
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version = "1.0.35"
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@ -3682,6 +3793,12 @@ dependencies = [
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"libc",
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]
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[[package]]
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name = "self_cell"
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version = "1.0.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "d369a96f978623eb3dc28807c4852d6cc617fed53da5d3c400feff1ef34a714a"
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[[package]]
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name = "semver"
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version = "1.0.21"
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@ -3874,6 +3991,12 @@ dependencies = [
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"der",
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]
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[[package]]
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name = "static_assertions"
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version = "1.1.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
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[[package]]
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name = "static_init"
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version = "1.0.3"
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@ -3902,6 +4025,12 @@ dependencies = [
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"syn 1.0.109",
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]
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[[package]]
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name = "std-semaphore"
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version = "0.1.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "33ae9eec00137a8eed469fb4148acd9fc6ac8c3f9b110f52cd34698c8b5bfa0e"
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[[package]]
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name = "strsim"
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version = "0.10.0"
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@ -4021,15 +4150,15 @@ dependencies = [
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[[package]]
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name = "tempfile"
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version = "3.9.0"
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version = "3.12.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "01ce4141aa927a6d1bd34a041795abd0db1cccba5d5f24b009f694bdf3a1f3fa"
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checksum = "04cbcdd0c794ebb0d4cf35e88edd2f7d2c4c3e9a5a6dab322839b321c6a87a64"
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dependencies = [
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"cfg-if",
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"fastrand",
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"redox_syscall 0.4.1",
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"once_cell",
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"rustix",
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"windows-sys 0.52.0",
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"windows-sys 0.59.0",
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]
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[[package]]
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@ -4450,6 +4579,16 @@ version = "0.2.5"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "e421abadd41a4225275504ea4d6566923418b7f05506fbc9c0fe86ba7396114b"
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[[package]]
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name = "twox-hash"
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version = "1.6.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "97fee6b57c6a41524a810daee9286c02d7752c4253064d0b05472833a438f675"
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dependencies = [
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"cfg-if",
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"static_assertions",
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]
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[[package]]
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name = "typenum"
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version = "1.17.0"
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@ -4730,7 +4869,7 @@ version = "0.52.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "33ab640c8d7e35bf8ba19b884ba838ceb4fba93a4e8c65a9059d08afcfc683d9"
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dependencies = [
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"windows-targets 0.52.0",
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"windows-targets 0.52.6",
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]
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[[package]]
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@ -4748,7 +4887,16 @@ version = "0.52.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "282be5f36a8ce781fad8c8ae18fa3f9beff57ec1b52cb3de0789201425d9a33d"
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dependencies = [
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"windows-targets 0.52.0",
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"windows-targets 0.52.6",
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]
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[[package]]
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name = "windows-sys"
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version = "0.59.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "1e38bc4d79ed67fd075bcc251a1c39b32a1776bbe92e5bef1f0bf1f8c531853b"
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dependencies = [
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"windows-targets 0.52.6",
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]
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[[package]]
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[[package]]
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name = "windows-targets"
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version = "0.52.0"
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version = "0.52.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "8a18201040b24831fbb9e4eb208f8892e1f50a37feb53cc7ff887feb8f50e7cd"
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checksum = "9b724f72796e036ab90c1021d4780d4d3d648aca59e491e6b98e725b84e99973"
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dependencies = [
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"windows_aarch64_gnullvm 0.52.0",
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"windows_aarch64_msvc 0.52.0",
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"windows_i686_gnu 0.52.0",
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"windows_i686_msvc 0.52.0",
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"windows_x86_64_gnu 0.52.0",
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"windows_x86_64_gnullvm 0.52.0",
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"windows_x86_64_msvc 0.52.0",
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"windows_aarch64_gnullvm 0.52.6",
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"windows_aarch64_msvc 0.52.6",
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"windows_i686_gnu 0.52.6",
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"windows_i686_gnullvm",
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"windows_i686_msvc 0.52.6",
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"windows_x86_64_gnu 0.52.6",
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"windows_x86_64_gnullvm 0.52.6",
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"windows_x86_64_msvc 0.52.6",
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]
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@ -4789,9 +4938,9 @@ checksum = "2b38e32f0abccf9987a4e3079dfb67dcd799fb61361e53e2882c3cbaf0d905d8"
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[[package]]
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name = "windows_aarch64_gnullvm"
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version = "0.52.0"
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version = "0.52.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "cb7764e35d4db8a7921e09562a0304bf2f93e0a51bfccee0bd0bb0b666b015ea"
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checksum = "32a4622180e7a0ec044bb555404c800bc9fd9ec262ec147edd5989ccd0c02cd3"
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[[package]]
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name = "windows_aarch64_msvc"
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@ -4801,9 +4950,9 @@ checksum = "dc35310971f3b2dbbf3f0690a219f40e2d9afcf64f9ab7cc1be722937c26b4bc"
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[[package]]
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name = "windows_aarch64_msvc"
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version = "0.52.0"
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version = "0.52.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "bbaa0368d4f1d2aaefc55b6fcfee13f41544ddf36801e793edbbfd7d7df075ef"
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checksum = "09ec2a7bb152e2252b53fa7803150007879548bc709c039df7627cabbd05d469"
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[[package]]
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name = "windows_i686_gnu"
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@ -4813,9 +4962,15 @@ checksum = "a75915e7def60c94dcef72200b9a8e58e5091744960da64ec734a6c6e9b3743e"
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[[package]]
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name = "windows_i686_gnu"
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version = "0.52.0"
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version = "0.52.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "a28637cb1fa3560a16915793afb20081aba2c92ee8af57b4d5f28e4b3e7df313"
|
||||
checksum = "8e9b5ad5ab802e97eb8e295ac6720e509ee4c243f69d781394014ebfe8bbfa0b"
|
||||
|
||||
[[package]]
|
||||
name = "windows_i686_gnullvm"
|
||||
version = "0.52.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "0eee52d38c090b3caa76c563b86c3a4bd71ef1a819287c19d586d7334ae8ed66"
|
||||
|
||||
[[package]]
|
||||
name = "windows_i686_msvc"
|
||||
|
|
@ -4825,9 +4980,9 @@ checksum = "8f55c233f70c4b27f66c523580f78f1004e8b5a8b659e05a4eb49d4166cca406"
|
|||
|
||||
[[package]]
|
||||
name = "windows_i686_msvc"
|
||||
version = "0.52.0"
|
||||
version = "0.52.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "ffe5e8e31046ce6230cc7215707b816e339ff4d4d67c65dffa206fd0f7aa7b9a"
|
||||
checksum = "240948bc05c5e7c6dabba28bf89d89ffce3e303022809e73deaefe4f6ec56c66"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_gnu"
|
||||
|
|
@ -4837,9 +4992,9 @@ checksum = "53d40abd2583d23e4718fddf1ebec84dbff8381c07cae67ff7768bbf19c6718e"
|
|||
|
||||
[[package]]
|
||||
name = "windows_x86_64_gnu"
|
||||
version = "0.52.0"
|
||||
version = "0.52.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "3d6fa32db2bc4a2f5abeacf2b69f7992cd09dca97498da74a151a3132c26befd"
|
||||
checksum = "147a5c80aabfbf0c7d901cb5895d1de30ef2907eb21fbbab29ca94c5b08b1a78"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_gnullvm"
|
||||
|
|
@ -4849,9 +5004,9 @@ checksum = "0b7b52767868a23d5bab768e390dc5f5c55825b6d30b86c844ff2dc7414044cc"
|
|||
|
||||
[[package]]
|
||||
name = "windows_x86_64_gnullvm"
|
||||
version = "0.52.0"
|
||||
version = "0.52.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1a657e1e9d3f514745a572a6846d3c7aa7dbe1658c056ed9c3344c4109a6949e"
|
||||
checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_msvc"
|
||||
|
|
@ -4861,9 +5016,9 @@ checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
|
|||
|
||||
[[package]]
|
||||
name = "windows_x86_64_msvc"
|
||||
version = "0.52.0"
|
||||
version = "0.52.6"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "dff9641d1cd4be8d1a070daf9e3773c5f67e78b4d9d42263020c057706765c04"
|
||||
checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
|
||||
|
||||
[[package]]
|
||||
name = "winnow"
|
||||
|
|
|
|||
|
|
@ -85,6 +85,7 @@ heed = { version = "0.11", default-features = false, features = ["lmdb"] }
|
|||
rusqlite = "0.31.0"
|
||||
r2d2 = "0.8"
|
||||
r2d2_sqlite = "0.24"
|
||||
fjall = "1.5"
|
||||
|
||||
async-compression = { version = "0.4", features = ["tokio", "zstd"] }
|
||||
zstd = { version = "0.13", default-features = false }
|
||||
|
|
|
|||
|
|
@ -20,6 +20,7 @@ heed = { workspace = true, optional = true }
|
|||
rusqlite = { workspace = true, optional = true, features = ["backup"] }
|
||||
r2d2 = { workspace = true, optional = true }
|
||||
r2d2_sqlite = { workspace = true, optional = true }
|
||||
fjall = { workspace = true, optional = true }
|
||||
|
||||
[dev-dependencies]
|
||||
mktemp.workspace = true
|
||||
|
|
@ -28,4 +29,5 @@ mktemp.workspace = true
|
|||
default = [ "lmdb", "sqlite" ]
|
||||
bundled-libs = [ "rusqlite?/bundled" ]
|
||||
lmdb = [ "heed" ]
|
||||
fjall = [ "dep:fjall" ]
|
||||
sqlite = [ "rusqlite", "r2d2", "r2d2_sqlite" ]
|
||||
|
|
|
|||
413
src/db/fjall_adapter.rs
Normal file
413
src/db/fjall_adapter.rs
Normal file
|
|
@ -0,0 +1,413 @@
|
|||
use core::ops::Bound;
|
||||
use core::pin::Pin;
|
||||
use core::ptr::NonNull;
|
||||
|
||||
use std::collections::HashMap;
|
||||
use std::path::PathBuf;
|
||||
use std::sync::{Arc, RwLock};
|
||||
|
||||
use fjall::{
|
||||
PartitionCreateOptions, PersistMode, ReadTransaction, TransactionalKeyspace,
|
||||
TransactionalPartitionHandle, WriteTransaction,
|
||||
};
|
||||
|
||||
use crate::{
|
||||
Db, Error, IDb, ITx, ITxFn, OnCommit, Result, TxError, TxFnResult, TxOpError, TxOpResult,
|
||||
TxResult, TxValueIter, Value, ValueIter,
|
||||
};
|
||||
|
||||
pub use fjall;
|
||||
|
||||
// -- err
|
||||
|
||||
impl From<fjall::Error> for Error {
|
||||
fn from(e: fjall::Error) -> Error {
|
||||
Error(format!("fjall: {}", e).into())
|
||||
}
|
||||
}
|
||||
|
||||
impl From<fjall::LsmError> for Error {
|
||||
fn from(e: fjall::LsmError) -> Error {
|
||||
Error(format!("fjall lsm_tree: {}", e).into())
|
||||
}
|
||||
}
|
||||
|
||||
impl From<fjall::Error> for TxOpError {
|
||||
fn from(e: fjall::Error) -> TxOpError {
|
||||
TxOpError(e.into())
|
||||
}
|
||||
}
|
||||
|
||||
// -- db
|
||||
|
||||
pub struct FjallDb {
|
||||
path: PathBuf,
|
||||
keyspace: TransactionalKeyspace,
|
||||
trees: RwLock<(Vec<TransactionalPartitionHandle>, HashMap<String, usize>)>,
|
||||
}
|
||||
|
||||
type ByteRefRangeBound<'r> = (Bound<&'r [u8]>, Bound<&'r [u8]>);
|
||||
|
||||
impl FjallDb {
|
||||
pub fn init(path: &PathBuf, keyspace: TransactionalKeyspace) -> Db {
|
||||
let s = Self {
|
||||
path: path.clone(),
|
||||
keyspace,
|
||||
trees: RwLock::new((Vec::new(), HashMap::new())),
|
||||
};
|
||||
Db(Arc::new(s))
|
||||
}
|
||||
|
||||
fn get_tree(&self, i: usize) -> Result<TransactionalPartitionHandle> {
|
||||
self.trees
|
||||
.read()
|
||||
.unwrap()
|
||||
.0
|
||||
.get(i)
|
||||
.cloned()
|
||||
.ok_or_else(|| Error("invalid tree id".into()))
|
||||
}
|
||||
|
||||
fn canonicalize(name: &str) -> String {
|
||||
name.chars()
|
||||
.map(|c| {
|
||||
if c.is_alphanumeric() || c == '-' || c == '_' {
|
||||
c
|
||||
} else {
|
||||
'_'
|
||||
}
|
||||
})
|
||||
.collect::<String>()
|
||||
}
|
||||
}
|
||||
|
||||
impl IDb for FjallDb {
|
||||
fn engine(&self) -> String {
|
||||
"LSM trees (using Fjall crate)".into()
|
||||
}
|
||||
|
||||
fn open_tree(&self, name: &str) -> Result<usize> {
|
||||
let mut trees = self.trees.write().unwrap();
|
||||
let canonical_name = FjallDb::canonicalize(name);
|
||||
if let Some(i) = trees.1.get(&canonical_name) {
|
||||
Ok(*i)
|
||||
} else {
|
||||
let tree = self
|
||||
.keyspace
|
||||
.open_partition(&canonical_name, PartitionCreateOptions::default())?;
|
||||
let i = trees.0.len();
|
||||
trees.0.push(tree);
|
||||
trees.1.insert(canonical_name, i);
|
||||
Ok(i)
|
||||
}
|
||||
}
|
||||
|
||||
fn list_trees(&self) -> Result<Vec<String>> {
|
||||
Ok(self
|
||||
.keyspace
|
||||
.list_partitions()
|
||||
.iter()
|
||||
.map(|n| n.to_string())
|
||||
.collect())
|
||||
}
|
||||
|
||||
fn snapshot(&self, to: &PathBuf) -> Result<()> {
|
||||
std::fs::create_dir_all(to)?;
|
||||
let mut path = to.clone();
|
||||
path.push("data.fjall");
|
||||
|
||||
let source_keyspace = fjall::Config::new(&self.path).open()?;
|
||||
let copy_keyspace = fjall::Config::new(path).open()?;
|
||||
|
||||
for partition_name in source_keyspace.list_partitions() {
|
||||
let source_partition = source_keyspace
|
||||
.open_partition(&partition_name, PartitionCreateOptions::default())?;
|
||||
let snapshot = source_partition.snapshot();
|
||||
let copy_partition =
|
||||
copy_keyspace.open_partition(&partition_name, PartitionCreateOptions::default())?;
|
||||
|
||||
for entry in snapshot.iter() {
|
||||
let (key, value) = entry?;
|
||||
copy_partition.insert(key, value)?;
|
||||
}
|
||||
}
|
||||
|
||||
copy_keyspace.persist(PersistMode::SyncAll)?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
// ----
|
||||
|
||||
fn get(&self, tree_idx: usize, key: &[u8]) -> Result<Option<Value>> {
|
||||
let tree = self.get_tree(tree_idx)?;
|
||||
let tx = self.keyspace.read_tx();
|
||||
let val = tx.get(&tree, key)?;
|
||||
match val {
|
||||
None => Ok(None),
|
||||
Some(v) => Ok(Some(v.to_vec())),
|
||||
}
|
||||
}
|
||||
|
||||
fn len(&self, tree_idx: usize) -> Result<usize> {
|
||||
let tree = self.get_tree(tree_idx)?;
|
||||
let tx = self.keyspace.read_tx();
|
||||
Ok(tx.len(&tree)?)
|
||||
}
|
||||
|
||||
fn insert(&self, tree_idx: usize, key: &[u8], value: &[u8]) -> Result<()> {
|
||||
let tree = self.get_tree(tree_idx)?;
|
||||
let mut tx = self.keyspace.write_tx();
|
||||
tx.insert(&tree, key, value);
|
||||
tx.commit()?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn remove(&self, tree_idx: usize, key: &[u8]) -> Result<()> {
|
||||
let tree = self.get_tree(tree_idx)?;
|
||||
let mut tx = self.keyspace.write_tx();
|
||||
tx.remove(&tree, key);
|
||||
tx.commit()?;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn clear(&self, tree_idx: usize) -> Result<()> {
|
||||
let tree = self.get_tree(tree_idx)?;
|
||||
let tree_name = tree.inner().name.clone();
|
||||
self.keyspace.delete_partition(tree)?;
|
||||
let tree = self
|
||||
.keyspace
|
||||
.open_partition(&tree_name, PartitionCreateOptions::default())?;
|
||||
let mut trees = self.trees.write().unwrap();
|
||||
trees.0[tree_idx] = tree;
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn iter(&self, tree_idx: usize) -> Result<ValueIter<'_>> {
|
||||
let tree = self.get_tree(tree_idx)?;
|
||||
let tx = self.keyspace.read_tx();
|
||||
TxAndIterator::make(tx, |tx| Ok(tx.iter(&tree)))
|
||||
}
|
||||
|
||||
fn iter_rev(&self, tree_idx: usize) -> Result<ValueIter<'_>> {
|
||||
let tree = self.get_tree(tree_idx)?;
|
||||
let tx = self.keyspace.read_tx();
|
||||
TxAndIterator::make(tx, |tx| Ok(tx.iter(&tree).rev()))
|
||||
}
|
||||
|
||||
fn range<'r>(
|
||||
&self,
|
||||
tree_idx: usize,
|
||||
low: Bound<&'r [u8]>,
|
||||
high: Bound<&'r [u8]>,
|
||||
) -> Result<ValueIter<'_>> {
|
||||
let tree = self.get_tree(tree_idx)?;
|
||||
let tx = self.keyspace.read_tx();
|
||||
TxAndIterator::make(tx, |tx| {
|
||||
Ok(tx.range::<&'r [u8], ByteRefRangeBound>(&tree, (low, high)))
|
||||
})
|
||||
}
|
||||
fn range_rev<'r>(
|
||||
&self,
|
||||
tree_idx: usize,
|
||||
low: Bound<&'r [u8]>,
|
||||
high: Bound<&'r [u8]>,
|
||||
) -> Result<ValueIter<'_>> {
|
||||
let tree = self.get_tree(tree_idx)?;
|
||||
let tx = self.keyspace.read_tx();
|
||||
TxAndIterator::make(tx, |tx| {
|
||||
Ok(tx
|
||||
.range::<&'r [u8], ByteRefRangeBound>(&tree, (low, high))
|
||||
.rev())
|
||||
})
|
||||
}
|
||||
|
||||
// ----
|
||||
|
||||
fn transaction(&self, f: &dyn ITxFn) -> TxResult<OnCommit, ()> {
|
||||
let trees = self.trees.read().unwrap();
|
||||
let mut tx = FjallTx {
|
||||
trees: &trees.0[..],
|
||||
tx: self.keyspace.write_tx(),
|
||||
};
|
||||
|
||||
let res = f.try_on(&mut tx);
|
||||
match res {
|
||||
TxFnResult::Ok(on_commit) => {
|
||||
tx.tx.commit().map_err(Error::from).map_err(TxError::Db)?;
|
||||
Ok(on_commit)
|
||||
}
|
||||
TxFnResult::Abort => {
|
||||
tx.tx.rollback();
|
||||
Err(TxError::Abort(()))
|
||||
}
|
||||
TxFnResult::DbErr => {
|
||||
tx.tx.rollback();
|
||||
Err(TxError::Db(Error(
|
||||
"(this message will be discarded)".into(),
|
||||
)))
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// ----
|
||||
|
||||
struct FjallTx<'a> {
|
||||
trees: &'a [TransactionalPartitionHandle],
|
||||
tx: WriteTransaction<'a>,
|
||||
}
|
||||
|
||||
impl<'a> FjallTx<'a> {
|
||||
fn get_tree(&self, i: usize) -> TxOpResult<&TransactionalPartitionHandle> {
|
||||
self.trees.get(i).ok_or_else(|| {
|
||||
TxOpError(Error(
|
||||
"invalid tree id (it might have been openned after the transaction started)".into(),
|
||||
))
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> ITx for FjallTx<'a> {
|
||||
fn get(&self, tree_idx: usize, key: &[u8]) -> TxOpResult<Option<Value>> {
|
||||
let tree = self.get_tree(tree_idx)?;
|
||||
match self.tx.get(tree, key)? {
|
||||
Some(v) => Ok(Some(v.to_vec())),
|
||||
None => Ok(None),
|
||||
}
|
||||
}
|
||||
fn len(&self, tree_idx: usize) -> TxOpResult<usize> {
|
||||
let tree = self.get_tree(tree_idx)?;
|
||||
Ok(self.tx.len(tree)? as usize)
|
||||
}
|
||||
|
||||
fn insert(&mut self, tree_idx: usize, key: &[u8], value: &[u8]) -> TxOpResult<()> {
|
||||
let tree = self.get_tree(tree_idx)?.clone();
|
||||
self.tx.insert(&tree, key, value);
|
||||
Ok(())
|
||||
}
|
||||
fn remove(&mut self, tree_idx: usize, key: &[u8]) -> TxOpResult<()> {
|
||||
let tree = self.get_tree(tree_idx)?.clone();
|
||||
self.tx.remove(&tree, key);
|
||||
Ok(())
|
||||
}
|
||||
fn clear(&mut self, _tree_idx: usize) -> TxOpResult<()> {
|
||||
unimplemented!("LSM tree clearing in cross-partition transaction is not supported")
|
||||
}
|
||||
|
||||
fn iter(&self, tree_idx: usize) -> TxOpResult<TxValueIter<'_>> {
|
||||
let tree = self.get_tree(tree_idx)?.clone();
|
||||
Ok(Box::new(self.tx.iter(&tree).map(tx_iter_item)))
|
||||
}
|
||||
fn iter_rev(&self, tree_idx: usize) -> TxOpResult<TxValueIter<'_>> {
|
||||
let tree = self.get_tree(tree_idx)?.clone();
|
||||
Ok(Box::new(self.tx.iter(&tree).rev().map(tx_iter_item)))
|
||||
}
|
||||
|
||||
fn range<'r>(
|
||||
&self,
|
||||
tree_idx: usize,
|
||||
low: Bound<&'r [u8]>,
|
||||
high: Bound<&'r [u8]>,
|
||||
) -> TxOpResult<TxValueIter<'_>> {
|
||||
let tree = self.get_tree(tree_idx)?.clone();
|
||||
Ok(Box::new(
|
||||
self.tx
|
||||
.range::<&'r [u8], ByteRefRangeBound>(&tree, (low, high))
|
||||
.map(tx_iter_item),
|
||||
))
|
||||
}
|
||||
fn range_rev<'r>(
|
||||
&self,
|
||||
tree_idx: usize,
|
||||
low: Bound<&'r [u8]>,
|
||||
high: Bound<&'r [u8]>,
|
||||
) -> TxOpResult<TxValueIter<'_>> {
|
||||
let tree = self.get_tree(tree_idx)?.clone();
|
||||
Ok(Box::new(
|
||||
self.tx
|
||||
.range::<&'r [u8], ByteRefRangeBound>(&tree, (low, high))
|
||||
.rev()
|
||||
.map(tx_iter_item),
|
||||
))
|
||||
}
|
||||
}
|
||||
|
||||
// ---- iterators outside transactions ----
|
||||
// complicated, they must hold the transaction object
|
||||
// therefore a bit of unsafe code (it is a self-referential struct)
|
||||
|
||||
type IteratorItem = fjall::Result<(fjall::UserKey, fjall::UserValue)>;
|
||||
|
||||
struct TxAndIterator<I>
|
||||
where
|
||||
I: Iterator<Item = IteratorItem>,
|
||||
{
|
||||
tx: ReadTransaction,
|
||||
iter: Option<I>,
|
||||
}
|
||||
|
||||
impl<'a, I> TxAndIterator<I>
|
||||
where
|
||||
I: Iterator<Item = IteratorItem> + 'a,
|
||||
{
|
||||
fn make<F>(tx: ReadTransaction, iterfun: F) -> Result<ValueIter<'a>>
|
||||
where
|
||||
F: FnOnce(&ReadTransaction) -> Result<I>,
|
||||
{
|
||||
let res = TxAndIterator { tx, iter: None };
|
||||
let mut boxed = Box::pin(res);
|
||||
|
||||
// This unsafe allows us to bypass lifetime checks
|
||||
let tx = unsafe { NonNull::from(&boxed.tx).as_ref() };
|
||||
let iter = iterfun(tx)?;
|
||||
|
||||
let mut_ref = Pin::as_mut(&mut boxed);
|
||||
// This unsafe allows us to write in a field of the pinned struct
|
||||
unsafe {
|
||||
Pin::get_unchecked_mut(mut_ref).iter = Some(iter);
|
||||
}
|
||||
|
||||
Ok(Box::new(TxAndIteratorPin(boxed)))
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a, I> Drop for TxAndIterator<I>
|
||||
where
|
||||
I: Iterator<Item = IteratorItem>,
|
||||
{
|
||||
fn drop(&mut self) {
|
||||
// ensure the iterator is dropped before the RoTxn it references
|
||||
drop(self.iter.take());
|
||||
}
|
||||
}
|
||||
|
||||
struct TxAndIteratorPin<I>(Pin<Box<TxAndIterator<I>>>)
|
||||
where
|
||||
I: Iterator<Item = IteratorItem>;
|
||||
|
||||
impl<I> Iterator for TxAndIteratorPin<I>
|
||||
where
|
||||
I: Iterator<Item = IteratorItem>,
|
||||
{
|
||||
type Item = Result<(Value, Value)>;
|
||||
|
||||
fn next(&mut self) -> Option<Self::Item> {
|
||||
let mut_ref = Pin::as_mut(&mut self.0);
|
||||
// This unsafe allows us to mutably access the iterator field
|
||||
let next = unsafe { Pin::get_unchecked_mut(mut_ref).iter.as_mut()?.next() };
|
||||
match next {
|
||||
None => None,
|
||||
Some(Err(e)) => Some(Err(e.into())),
|
||||
Some(Ok((k, v))) => Some(Ok((k.to_vec(), v.to_vec()))),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// ---- iterators within transactions ----
|
||||
|
||||
fn tx_iter_item<'a>(
|
||||
item: std::result::Result<(Arc<[u8]>, Arc<[u8]>), fjall::Error>,
|
||||
) -> TxOpResult<(Vec<u8>, Vec<u8>)> {
|
||||
item.map(|(k, v)| (k.to_vec(), v.to_vec()))
|
||||
.map_err(|e| TxOpError(Error::from(e)))
|
||||
}
|
||||
|
|
@ -1,6 +1,8 @@
|
|||
#[macro_use]
|
||||
extern crate tracing;
|
||||
|
||||
#[cfg(feature = "fjall")]
|
||||
pub mod fjall_adapter;
|
||||
#[cfg(feature = "lmdb")]
|
||||
pub mod lmdb_adapter;
|
||||
#[cfg(feature = "sqlite")]
|
||||
|
|
|
|||
|
|
@ -11,6 +11,7 @@ use crate::{Db, Error, Result};
|
|||
pub enum Engine {
|
||||
Lmdb,
|
||||
Sqlite,
|
||||
Fjall,
|
||||
}
|
||||
|
||||
impl Engine {
|
||||
|
|
@ -19,6 +20,7 @@ impl Engine {
|
|||
match self {
|
||||
Self::Lmdb => "lmdb",
|
||||
Self::Sqlite => "sqlite",
|
||||
Self::Fjall => "fjall",
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -36,6 +38,7 @@ impl std::str::FromStr for Engine {
|
|||
match text {
|
||||
"lmdb" | "heed" => Ok(Self::Lmdb),
|
||||
"sqlite" | "sqlite3" | "rusqlite" => Ok(Self::Sqlite),
|
||||
"fjall" => Ok(Self::Fjall),
|
||||
"sled" => Err(Error("Sled is no longer supported as a database engine. Converting your old metadata db can be done using an older Garage binary (e.g. v0.9.4).".into())),
|
||||
kind => Err(Error(
|
||||
format!(
|
||||
|
|
@ -114,6 +117,15 @@ pub fn open_db(path: &PathBuf, engine: Engine, opt: &OpenOpt) -> Result<Db> {
|
|||
}
|
||||
}
|
||||
|
||||
// ---- Fjall DB ----
|
||||
#[cfg(feature = "fjall")]
|
||||
Engine::Fjall => {
|
||||
info!("Opening Fjall database at: {}", path.display());
|
||||
let fsync_ms = opt.fsync.then(|| 1000 as u16);
|
||||
let keyspace = fjall::Config::new(path).fsync_ms(fsync_ms).open_transactional()?;
|
||||
Ok(crate::fjall_adapter::FjallDb::init(path, keyspace))
|
||||
}
|
||||
|
||||
// Pattern is unreachable when all supported DB engines are compiled into binary. The allow
|
||||
// attribute is added so that we won't have to change this match in case stop building
|
||||
// support for one or more engines by default.
|
||||
|
|
|
|||
|
|
@ -89,6 +89,7 @@ k2v = [ "garage_util/k2v", "garage_api/k2v" ]
|
|||
# Database engines
|
||||
lmdb = [ "garage_model/lmdb" ]
|
||||
sqlite = [ "garage_model/sqlite" ]
|
||||
fjall = [ "garage_model/fjall" ]
|
||||
|
||||
# Automatic registration and discovery via Consul API
|
||||
consul-discovery = [ "garage_rpc/consul-discovery" ]
|
||||
|
|
|
|||
|
|
@ -47,3 +47,4 @@ default = [ "lmdb", "sqlite" ]
|
|||
k2v = [ "garage_util/k2v" ]
|
||||
lmdb = [ "garage_db/lmdb" ]
|
||||
sqlite = [ "garage_db/sqlite" ]
|
||||
fjall = [ "garage_db/fjall" ]
|
||||
|
|
@ -124,6 +124,9 @@ impl Garage {
|
|||
db::Engine::Lmdb => {
|
||||
db_path.push("db.lmdb");
|
||||
}
|
||||
db::Engine::Fjall => {
|
||||
db_path.push("db.fjall");
|
||||
}
|
||||
}
|
||||
let db_opt = db::OpenOpt {
|
||||
fsync: config.metadata_fsync,
|
||||
|
|
|
|||
Loading…
Reference in a new issue