DX 593 - Auto executed pipeline (#1039)

* feat: add auto executed pipelines

* test: improve test times by shrinking test subjects

* feat: add proxy over autopipeline function

* add enableAutoPipelining parameter to redis

* initalize auto pipeline with static method

* add docstrings for autoPipeline methods

* add pipelineCounter field to autoPipeline proxy

* add test for consecutive awaits with auto pipeline

* simplfy auto pipeline tests

* fix test descriptions

* rm pipelineCounter field from auto pipeline proxy

---------

Co-authored-by: CahidArda <cahidardaooz@hotmail.com>

pkg/auto-pipeline.test.ts

@@ -0,0 +1,228 @@
+import { Redis } from "../platforms/nodejs"
+import { keygen, newHttpClient } from "./test-utils";
+
+import { afterEach, describe, expect, test } from "bun:test";
+import { ScriptLoadCommand } from "./commands/script_load";
+
+
+const client = newHttpClient();
+
+const { newKey, cleanup } = keygen();
+afterEach(cleanup);
+
+describe("Auto pipeline", () => {
+  test("should execute all commands inside a Promise.all in a single pipeline", async () => {
+    const persistentKey = newKey();
+    const persistentKey2 = newKey();
+    const scriptHash = await new ScriptLoadCommand(["return 1"]).exec(client);
+
+    const redis = Redis.autoPipeline({
+      latencyLogging: false
+    })
+    // @ts-expect-error pipelineCounter is not in type but accessible
+    expect(redis.pipelineCounter).toBe(0)
+
+    // all the following commands are in a single pipeline call
+    const result = await Promise.all([
+      redis.append(newKey(), "hello"),
+      redis.bitcount(newKey(), 0, 1),
+      redis.bitop("and", newKey(), newKey()),
+      redis.bitpos(newKey(), 1, 0),
+      redis.dbsize(),
+      redis.decr(newKey()),
+      redis.decrby(newKey(), 1),
+      redis.del(newKey()),
+      redis.echo("hello"),
+      redis.eval("return ARGV[1]", [], ["Hello"]),
+      redis.evalsha(scriptHash, [], ["Hello"]),
+      redis.exists(newKey()),
+      redis.expire(newKey(), 5),
+      redis.expireat(newKey(), Math.floor(new Date().getTime() / 1000) + 60),
+      redis.flushall(),
+      redis.flushdb(),
+      redis.get(newKey()),
+      redis.getbit(newKey(), 0),
+      redis.getdel(newKey()),
+      redis.getset(newKey(), "hello"),
+      redis.hdel(newKey(), "field"),
+      redis.hexists(newKey(), "field"),
+      redis.hget(newKey(), "field"),
+      redis.hgetall(newKey()),
+      redis.hincrby(newKey(), "field", 1),
+      redis.hincrbyfloat(newKey(), "field", 1.5),
+      redis.hkeys(newKey()),
+      redis.hlen(newKey()),
+      redis.hmget(newKey(), newKey()),
+      redis.hmset(newKey(), { field: "field", value: "value" }),
+      redis.hscan(newKey(), 0),
+      redis.hset(newKey(), { field: "value" }),
+      redis.hsetnx(newKey(), "field", "value"),
+      redis.hstrlen(newKey(), "field"),
+      redis.hvals(newKey()),
+      redis.incr(newKey()),
+      redis.incrby(newKey(), 1),
+      redis.incrbyfloat(newKey(), 1.5),
+      redis.keys("*"),
+      redis.lindex(newKey(), 0),
+      redis.linsert(newKey(), "before", "pivot", "value"),
+      redis.llen(newKey()),
+      redis.lmove(newKey(), newKey(), "left", "right"),
+      redis.lpop(newKey()),
+      redis.lpos(newKey(), "value"),
+      redis.lpush(persistentKey, "element"),
+      redis.lpushx(newKey(), "element1", "element2"),
+      redis.lrange(newKey(), 0, 1),
+      redis.lrem(newKey(), 1, "value"),
+      redis.lset(persistentKey, 0, "value"),
+      redis.ltrim(newKey(), 0, 1),
+      redis.hrandfield(newKey()),
+      redis.hrandfield(newKey(), 2),
+      redis.hrandfield(newKey(), 3, true),
+      redis.mget<[string, string]>(newKey(), newKey()),
+      redis.mset({ key1: "value", key2: "value" }),
+      redis.msetnx({ key3: "value", key4: "value" }),
+      redis.persist(newKey()),
+      redis.pexpire(newKey(), 1000),
+      redis.pexpireat(newKey(), new Date().getTime() + 1000),
+      redis.ping(),
+      redis.psetex(newKey(), 1, "value"),
+      redis.pttl(newKey()),
+      redis.publish("test", "hello"),
+      redis.randomkey(),
+      redis.rename(persistentKey, persistentKey2),
+      redis.renamenx(persistentKey2, newKey()),
+      redis.rpop(newKey()),
+      redis.rpush(newKey(), "element1", "element2"),
+      redis.rpushx(newKey(), "element1", "element2"),
+      redis.sadd(newKey(), "memeber1", "member2"),
+      redis.scan(0),
+      redis.scard(newKey()),
+      redis.sdiff(newKey()),
+      redis.sdiffstore(newKey(), newKey()),
+      redis.set(newKey(), "value"),
+      redis.setbit(newKey(), 1, 1),
+      redis.setex(newKey(), 1, "value"),
+      redis.setnx(newKey(), "value"),
+      redis.setrange(newKey(), 1, "value"),
+      redis.sinter(newKey(), newKey()),
+      redis.sinterstore(newKey(), newKey()),
+      redis.sismember(newKey(), "member"),
+      redis.smembers(newKey()),
+      redis.smove(newKey(), newKey(), "member"),
+      redis.spop(newKey()),
+      redis.srandmember(newKey()),
+      redis.srem(newKey(), "member"),
+      redis.sscan(newKey(), 0),
+      redis.strlen(newKey()),
+      redis.sunion(newKey()),
+      redis.sunionstore(newKey(), newKey()),
+      redis.time(),
+      redis.touch(newKey()),
+      redis.ttl(newKey()),
+      redis.type(newKey()),
+      redis.unlink(newKey()),
+      redis.zadd(newKey(), { score: 0, member: "member" }),
+      redis.zcard(newKey()),
+      redis.scriptExists(scriptHash),
+      redis.scriptFlush({ async: true }),
+      redis.scriptLoad("return 1"),
+      redis.zcount(newKey(), 0, 1),
+      redis.zincrby(newKey(), 1, "member"),
+      redis.zinterstore(newKey(), 1, [newKey()]),
+      redis.zlexcount(newKey(), "-", "+"),
+      redis.zpopmax(newKey()),
+      redis.zpopmin(newKey()),
+      redis.zrange(newKey(), 0, 1),
+      redis.zrank(newKey(), "member"),
+      redis.zrem(newKey(), "member"),
+      redis.zremrangebylex(newKey(), "-", "+"),
+      redis.zremrangebyrank(newKey(), 0, 1),
+      redis.zremrangebyscore(newKey(), 0, 1),
+      redis.zrevrank(newKey(), "member"),
+      redis.zscan(newKey(), 0),
+      redis.zscore(newKey(), "member"),
+      redis.zunionstore(newKey(), 1, [newKey()]),
+      redis.zunion(1, [newKey()]),
+      redis.json.set(newKey(), "$", { hello: "world" })
+    ])
+    expect(result).toBeTruthy();
+    expect(result.length).toBe(120); // returns 
+    // @ts-expect-error pipelineCounter is not in type but accessible120 results
+    expect(redis.pipelineCounter).toBe(1);
+  });
+
+  test("should group async requests with sync requests", async () => {
+
+    const redis = Redis.autoPipeline({
+      latencyLogging: false
+    })
+    // @ts-expect-error pipelineCounter is not in type but accessible
+    expect(redis.pipelineCounter).toBe(0);
+
+    // following five commands are added to the pipeline
+    redis.flushdb();
+    redis.incr("baz");
+    redis.incr("baz");
+    redis.set("foo", "bar");
+    redis.incr("baz");
+
+    // two get calls are added to the pipeline and pipeline
+    // is executed since we called await
+    const [fooValue, bazValue] = await Promise.all([
+      redis.get("foo"),
+      redis.get("baz")
+    ]);
+
+    expect(fooValue).toBe("bar");
+    expect(bazValue).toBe(3);
+    // @ts-expect-error pipelineCounter is not in type but accessible
+    expect(redis.pipelineCounter).toBe(1);
+  })
+
+  test("should execute a pipeline for each consecutive awaited command", async () => {
+
+    const redis = Redis.autoPipeline({
+      latencyLogging: false
+    });
+    // @ts-expect-error pipelineCounter is not in type but accessible
+    expect(redis.pipelineCounter).toBe(0);
+
+    redis.flushdb();
+
+    const res1 = await redis.incr("baz");
+    // @ts-expect-error pipelineCounter is not in type but accessible
+    expect(redis.pipelineCounter).toBe(1);
+
+    const res2 = await redis.incr("baz");
+    // @ts-expect-error pipelineCounter is not in type but accessible
+    expect(redis.pipelineCounter).toBe(2);
+
+    const res3 = await redis.set("foo", "bar");
+    // @ts-expect-error pipelineCounter is not in type but accessible
+    expect(redis.pipelineCounter).toBe(3);
+
+    expect([res1, res2, res3]).toEqual([1, 2, "OK"]);
+
+  });
+
+  test("should execute a single pipeline for several commands inside Promise.all", async () => {
+
+    const redis = Redis.autoPipeline({
+      latencyLogging: false
+    });
+    // @ts-expect-error pipelineCounter is not in type but accessible
+    expect(redis.pipelineCounter).toBe(0);
+
+    const resArray = await Promise.all([
+      redis.flushdb(),
+      redis.incr("baz"),
+      redis.incr("baz"),
+      redis.set("foo", "bar"),
+      redis.get("foo")
+    ]);
+    // @ts-expect-error pipelineCounter is not in type but accessible
+    expect(redis.pipelineCounter).toBe(1);
+    expect(resArray).toEqual(["OK", 1, 2, "OK", "bar"]);
+
+  })
+});

pkg/auto-pipeline.ts

@@ -0,0 +1,83 @@
+import { Command } from "./commands/command";
+import { CommandArgs } from "./types";
+import { Pipeline } from "./pipeline";
+import { Redis } from "./redis";
+
+// will omit redis only commands since we call Pipeline in the background in auto pipeline
+type redisOnly = Exclude<keyof Redis, keyof Pipeline>
+
+export function createAutoPipelineProxy(_redis: Redis) {
+
+  const redis = _redis as Redis & {
+    autoPipelineExecutor: AutoPipelineExecutor;
+  }
+
+  if (!redis.autoPipelineExecutor) {
+    redis.autoPipelineExecutor = new AutoPipelineExecutor(redis);
+  }
+
+  return new Proxy(redis, {
+    get: (target, prop: "pipelineCounter" | keyof Pipeline ) => {
+
+      // return pipelineCounter of autoPipelineExecutor
+      if (prop == "pipelineCounter") {
+        return target.autoPipelineExecutor.pipelineCounter;
+      }
+
+      // If the method is a function on the pipeline, wrap it with the executor logic
+      if (typeof target.autoPipelineExecutor.pipeline[prop] === "function") {
+        return (...args: CommandArgs<typeof Command>) => {
+          return target.autoPipelineExecutor.withAutoPipeline((pipeline) => {
+            (pipeline[prop] as Function)(...args);
+          });
+        };
+      }
+      return target.autoPipelineExecutor.pipeline[prop];
+    },
+  }) as Omit<Redis, redisOnly>;
+}
+
+export class AutoPipelineExecutor {
+  private pipelinePromises = new WeakMap<Pipeline, Promise<Array<unknown>>>();
+  private activePipeline: Pipeline | null = null;
+  private indexInCurrentPipeline = 0;
+  private redis: Redis;
+  pipeline: Pipeline; // only to make sure that proxy can work
+  pipelineCounter: number = 0; // to keep track of how many times a pipeline was executed 
+
+  constructor(redis: Redis) {
+    this.redis = redis;
+    this.pipeline = redis.pipeline();
+  }
+
+  async withAutoPipeline<T>(executeWithPipeline: (pipeline: Pipeline) => unknown): Promise<T> {
+    const pipeline = this.activePipeline || this.redis.pipeline();
+
+    if (!this.activePipeline) {
+      this.activePipeline = pipeline;
+      this.indexInCurrentPipeline = 0;
+    }
+
+    const index = this.indexInCurrentPipeline++;
+    executeWithPipeline(pipeline);
+
+    const pipelineDone = this.deferExecution().then(() => {
+      if (!this.pipelinePromises.has(pipeline)) {
+        const pipelinePromise = pipeline.exec();
+        this.pipelineCounter += 1;
+
+        this.pipelinePromises.set(pipeline, pipelinePromise);
+        this.activePipeline = null;
+      }
+      return this.pipelinePromises.get(pipeline)!;
+    });
+
+    const results = await pipelineDone;
+    return results[index] as T;
+  }
+
+  private async deferExecution() {
+    await Promise.resolve();
+    return await Promise.resolve();
+  }
+}

pkg/commands/xtrim.test.ts

@@ -12,20 +12,20 @@ afterAll(cleanup);
 
 describe("XLEN", () => {
   test(
-    "should approximately trim stream to 300 items",
+    "should approximately trim stream to 30 items",
     async () => {
       const key = newKey();
       const promises = [];
-      for (let i = 1; i <= 10000; i++) {
+      for (let i = 1; i <= 1000; i++) {
         promises.push(new XAddCommand([key, "*", { [randomID()]: randomID() }]).exec(client));
       }
       await Promise.all(promises);
-      await new XTrimCommand([key, { strategy: "MAXLEN", threshold: 300, exactness: "~" }]).exec(
+      await new XTrimCommand([key, { strategy: "MAXLEN", threshold: 30, exactness: "~" }]).exec(
         client,
       );
       const len = await new XLenCommand([key]).exec(client);
-      expect(len).toBeGreaterThanOrEqual(290);
-      expect(len).toBeLessThanOrEqual(310);
+      expect(len).toBeGreaterThanOrEqual(29);
+      expect(len).toBeLessThanOrEqual(31);
     },
     { timeout: 1000 * 60 },
   );
@@ -45,20 +45,20 @@ describe("XLEN", () => {
   });
 
   test(
-    "should trim with MINID and a limit and only remove 10 items that satisfies MINID",
+    "should trim with MINID and a limit and only remove 2 items that satisfies MINID",
     async () => {
       const key = newKey();
       const baseTimestamp = Date.now();
-      for (let i = 0; i < 100; i++) {
+      for (let i = 0; i < 20; i++) {
         const id = `${baseTimestamp}-${i}`;
         await new XAddCommand([key, id, { data: `value${i}` }]).exec(client);
       }
-      const midRangeId = `${baseTimestamp}-50`;
-      await new XTrimCommand([key, { strategy: "MINID", threshold: midRangeId, limit: 10 }]).exec(
+      const midRangeId = `${baseTimestamp}-10`;
+      await new XTrimCommand([key, { strategy: "MINID", threshold: midRangeId, limit: 2 }]).exec(
         client,
       );
       const len = await new XLenCommand([key]).exec(client);
-      expect(len).toBeLessThanOrEqual(100);
+      expect(len).toBeLessThanOrEqual(20);
     },
     { timeout: 20000 },
   );

pkg/pipeline.test.ts

@@ -140,7 +140,6 @@ describe("use all the things", () => {
       .get(newKey())
       .getbit(newKey(), 0)
       .getdel(newKey())
-      .getrange(newKey(), 0, 1)
       .getset(newKey(), "hello")
       .hdel(newKey(), "field")
       .hexists(newKey(), "field")
@@ -244,6 +243,6 @@ describe("use all the things", () => {
       .json.set(newKey(), "$", { hello: "world" });
 
     const res = await p.exec();
-    expect(res.length).toEqual(121);
+    expect(res.length).toEqual(120);
   });
 });