diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml new file mode 100644 index 0000000..8e4331f --- /dev/null +++ b/.github/workflows/test.yaml @@ -0,0 +1,25 @@ +name: Test + +on: + push: + branches: [ master, main, develop ] + pull_request: + branches: [ master, main, develop ] + +jobs: + test: + runs-on: ubuntu-latest + strategy: + matrix: + node-version: [20.x, 22.x, 24.x] + steps: + - uses: actions/checkout@v7 + - name: Use Node.js ${{ matrix.node-version }} + uses: actions/setup-node@v6 + with: + node-version: ${{ matrix.node-version }} + cache: npm + - name: Install dependencies and build addon + run: npm ci + - name: Run tests + run: npm test diff --git a/.gitignore b/.gitignore index 2a13e12..59de780 100644 --- a/.gitignore +++ b/.gitignore @@ -3,4 +3,5 @@ node_modules **.swp !.gitignore +!.github npm-debug.log diff --git a/Makefile b/Makefile index 67b14f0..016ac3c 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,4 @@ -TESTS = 'test/test_distribution.js' - test: - @NODE_ENV=test expresso \ - $(TESTS) + @npm test .PHONY: test diff --git a/README.md b/README.md index 38d65c4..59a220a 100644 --- a/README.md +++ b/README.md @@ -1,45 +1,49 @@ ## node-hash-ring - Consistent Hashing C++ Add-on for node.js --- -See this [blog post](http://ngchi.wordpress.com/2010/08/23/towards-auto-sharding-in-your-node-js-app/) for more information. +See this [blog post](http://ngchi.wordpress.com/2010/08/23/towards-auto-sharding-in-your-node-js-app/) for background on the algorithm. ### Installation -Via npm: - npm install hash_ring +Via npm: -Via git: + npm install @movable/hash_ring - git clone http://github.com/bnoguchi/node-hash-ring.git +The native addon is compiled on install via `node-gyp` (invoked automatically), so a C++ toolchain is required. - #### node < 0.8.0 - cd node-hash-ring/src - node-waf configure build +From source: - #### node >= 0.8.0 + git clone https://github.com/movableink/node-hash-ring.git cd node-hash-ring - node-gyp configure build + npm install ### Example ```javascript -var HashRing = require("./lib/hash_ring"); +const { HashRing } = require("@movable/hash_ring"); -// Create a cluster of 3 servers weighted so that 127.0.0.2:8080 stores twice as many +// Create a cluster of 3 servers weighted so that 127.0.0.2:8080 stores twice as many // keys as 127.0.0.1:8080, and 127.0.0.3:8080 stores 4x as many keys as 127.0.0.1:8080 // and 2x as many keys as 127.0.0.2:8080 -var ring = new HashRing({"127.0.0.1:8080": 1, "127.0.0.2:8080": 2, "127.0.0.3:8080":4}); -console.log(ring.getNode("users:102") ); // Should be 127.0.0.3:8080 +const ring = new HashRing({ "127.0.0.1:8080": 1, "127.0.0.2:8080": 2, "127.0.0.3:8080": 4 }); + +console.log(ring.getNode("users:102")); // Should be 127.0.0.3:8080 +console.log(ring.getBuckets()); // ['127.0.0.1:8080', '127.0.0.2:8080', '127.0.0.3:8080'] +``` + +An optional second argument controls the number of replica points per bucket (precision): + +```javascript +const ring = new HashRing({ a: 5, b: 3 }, 500); ``` -See [./test/test_distribution.js](https://github.com/bnoguchi/node-hash-ring/test/test_distribution.js) for another example: - node test/test_distribution.js +TypeScript definitions are bundled ([index.d.ts](index.d.ts)). ### Tests -To run the tests: +Tests run with [mocha](https://mochajs.org/): - $ make test + npm test ### License MIT License @@ -47,3 +51,5 @@ MIT License --- ### Author Brian Noguchi + +Maintained by [Movable Ink](https://github.com/movableink). diff --git a/package-lock.json b/package-lock.json new file mode 100644 index 0000000..e232d1b --- /dev/null +++ b/package-lock.json @@ -0,0 +1,1252 @@ +{ + "name": "@movable/hash_ring", + "version": "1.1.0", + "lockfileVersion": 3, + "requires": true, + "packages": { + "": { + "name": "@movable/hash_ring", + "version": "1.1.0", + "dependencies": { + "node-addon-api": "^8.0.0", + "node-gyp-build": "^4.2.3" + }, + "devDependencies": { + "chi-squared-test": "^1.1.0", + "mocha": "^11.7.6" + }, + 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"https://github.com/movableink/node-hash-ring/issues" }, "engines": { - "node": ">=10" + "node": ">=18" }, "volta": { - "node": "14.7.0" + "node": "24.18.0" } } diff --git a/src/hash_ring.cc b/src/hash_ring.cc index d52acf1..6d03a1c 100644 --- a/src/hash_ring.cc +++ b/src/hash_ring.cc @@ -37,7 +37,7 @@ HashRing::HashRing(std::map weights, uint32_t precision) // Construct the bucket list based on the weight hash for (const auto& weight: weights) { NodeInfo *node = &(node_list[i]); - char* name = new char[weight.first.length()]; + char* name = new char[weight.first.length() + 1]; strcpy(name, weight.first.c_str()); node->id = name; node->weight = weight.second; @@ -53,10 +53,9 @@ HashRing::HashRing(std::map weights, uint32_t precision) float percent = (float) node_list[j].weight / (float) weight_total; unsigned int num_replicas = floorf(percent * precision * (float) num_buckets); for (k = 0; k < num_replicas; k++) { - char ss[30]; - sprintf(ss, "%s-%d", node_list[j].id, k); + std::string ss = std::string(node_list[j].id) + "-" + std::to_string(k); unsigned char digest[16]; - hash_digest(ss, digest); + hash_digest(ss.c_str(), digest); int m; for (m = 0; m < 4; m++) { vpoint_list[vpoint_idx].point = (digest[3 + m*4] << 24) | diff --git a/src/hash_ring.h b/src/hash_ring.h index c77cb84..1de3e8b 100644 --- a/src/hash_ring.h +++ b/src/hash_ring.h @@ -1,6 +1,7 @@ #ifndef HASH_RING_H_ #define HASH_RING_H_ +#include #include #include #include diff --git a/src/md5.cc b/src/md5.cc index c35d96c..f70d5ad 100644 --- a/src/md5.cc +++ b/src/md5.cc @@ -53,6 +53,7 @@ #include "md5.h" #include +#include #undef BYTE_ORDER /* 1 = big-endian, -1 = little-endian, 0 = unknown */ #ifdef ARCH_IS_BIG_ENDIAN @@ -161,7 +162,7 @@ md5_process(md5_state_t *pms, const md5_byte_t *data /*[64]*/) * On little-endian machines, we can process properly aligned * data without copying it. */ - if (!((data - (const md5_byte_t *)0) & 3)) { + if (!(((uintptr_t)data) & 3)) { /* data are properly aligned */ X = 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