{"id":201855,"date":"2025-05-10T13:15:18","date_gmt":"2025-05-10T05:15:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/201855\/"},"modified":"2025-05-10T13:15:18","modified_gmt":"2025-05-10T05:15:18","slug":"redis%e5%ae%9e%e7%8e%b0%e5%88%86%e5%b8%83%e5%bc%8f%e9%94%81%e7%9a%84zookeeper%e5%af%b9%e6%af%94","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/201855\/","title":{"rendered":"Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\u7684ZooKeeper\u5bf9\u6bd4"},"content":{"rendered":"

<\/b> <\/p>\n

Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\u7684ZooKeeper\u5bf9\u6bd4<\/h1>\n

\u672c\u7bc7\u6587\u7ae0\u5411\u5927\u5bb6\u4ecb\u7ecd\u300aRedis\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\u7684ZooKeeper\u5bf9\u6bd4\u300b\uff0c\u4e3b\u8981\u5305\u62ec\uff0c\u5177\u6709\u4e00\u5b9a\u7684\u53c2\u8003\u4ef7\u503c\uff0c\u9700\u8981\u7684\u670b\u53cb\u53ef\u4ee5\u53c2\u8003\u4e00\u4e0b\u3002<\/p>\n

\u968f\u7740\u4e92\u8054\u7f51\u6280\u672f\u7684\u8fc5\u901f\u53d1\u5c55\uff0c\u5206\u5e03\u5f0f\u7cfb\u7edf\u5728\u73b0\u4ee3\u5e94\u7528\u4e2d\u5df2\u7ecf\u5f97\u5230\u5e7f\u6cdb\u5e94\u7528\uff0c\u7279\u522b\u662f\u5728\u5927\u578b\u4e92\u8054\u7f51\u4f01\u4e1a\u4e2d\u66f4\u662f\u5fc5\u4e0d\u53ef\u5c11\u3002\u4f46\u662f\u5728\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e2d\uff0c\u5404\u4e2a\u8282\u70b9\u4e4b\u95f4\u8981\u4fdd\u6301\u4e00\u81f4\u6027\u662f\u975e\u5e38\u56f0\u96be\u7684\uff0c\u56e0\u6b64\u5206\u5e03\u5f0f\u9501\u673a\u5236\u6210\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u7684\u57fa\u7840\u4e4b\u4e00\u3002\u5728\u5206\u5e03\u5f0f\u9501\u7684\u5b9e\u73b0\u4e2d\uff0cRedis\u548cZooKeeper\u90fd\u662f\u6bd4\u8f83\u6d41\u884c\u7684\u5de5\u5177\uff0c\u672c\u6587\u5c06\u5bf9\u5b83\u4eec\u8fdb\u884c\u4e00\u4e9b\u5bf9\u6bd4\u548c\u5206\u6790\u3002<\/p>\n

    \n
  1. Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501<\/li>\n<\/ol>\n

    Redis\u662f\u5f00\u6e90\u7684\u5185\u5b58\u6570\u636e\u5b58\u50a8\u7cfb\u7edf\uff0c\u5b83\u53ef\u4ee5\u7528\u4f5c\u6570\u636e\u5e93\u3001\u7f13\u5b58\u548c\u6d88\u606f\u4e2d\u95f4\u4ef6\u3002Redis\u7684\u5206\u5e03\u5f0f\u9501\u673a\u5236\u662f\u901a\u8fc7SETNX\u5b9e\u73b0\u7684\uff0cSETNX\u547d\u4ee4\u53ef\u4ee5\u539f\u5b50\u6027\u5730\u8bbe\u7f6e\u4e00\u4e2a\u952e\u7684\u503c\uff0c\u4f46\u53ea\u5728\u952e\u4e0d\u5b58\u5728\u65f6\u624d\u8bbe\u7f6e\u6210\u529f\u3002\u56e0\u6b64\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7SETNX\u6765\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\u3002<\/p>\n

    \u5047\u8bbe\u6211\u4eec\u8981\u5b9e\u73b0\u4e00\u4e2a\u540d\u4e3aLock\u7684\u9501\uff0c\u5e76\u4e14\u9700\u8981\u9501\u4f4f\u67d0\u4e2a\u5171\u4eab\u53d8\u91cf\uff0c\u53ef\u4ee5\u4f7f\u7528\u5982\u4e0b\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n

    def acquire_lock(conn, lockname, acquire_timeout=10):\n    identifier = str(uuid.uuid4())\n    end = time.time() + acquire_timeout\n    while time.time() < end:\n        if conn.setnx(lockname, identifier):\n            return identifier\n        time.sleep(0.001)\n    return False<\/pre>\n
    \u4ee5\u4e0a\u4ee3\u7801\u4e2d\uff0cacquire_lock\u51fd\u6570\u901a\u8fc7uuid\u751f\u6210\u4e00\u4e2a\u968f\u673a\u7684\u6807\u8bc6\u7b26\uff0c\u5e76\u901a\u8fc7setnx\u5bf9lockname\u8fdb\u884c\u64cd\u4f5c\uff0c\u5982\u679c\u64cd\u4f5c\u6210\u529f\u5219\u8fd4\u56de\u6807\u8bc6\u7b26\u3002\u5982\u679c\u6ca1\u6709\u83b7\u5f97\u9501\u5219\u8fd4\u56deFalse\u3002<\/p>\n
    \u4f46\u662f\u8fd9\u91cc\u6709\u4e00\u4e2a\u95ee\u9898\uff1a\u5982\u679c\u67d0\u4e2a\u5ba2\u6237\u7aef\u5df2\u7ecf\u83b7\u5f97\u4e86\u9501\uff0c\u4f46\u5728\u91ca\u653e\u9501\u4e4b\u524d\u5b95\u673a\u6216\u8005\u6302\u4e86\uff0c\u90a3\u4e48\u5176\u4ed6\u5ba2\u6237\u7aef\u6c38\u8fdc\u65e0\u6cd5\u83b7\u5f97\u9501\uff0c\u8fd9\u5c31\u9020\u6210\u4e86\u6b7b\u9501\u95ee\u9898\u3002\u4e3a\u4e86\u907f\u514d\u8fd9\u79cd\u60c5\u51b5\uff0c\u6211\u4eec\u53ef\u4ee5\u6dfb\u52a0\u4e00\u4e2a\u8d85\u65f6\u65f6\u95f4\u6765\u81ea\u52a8\u91ca\u653e\u9501\u3002\u4ee5\u4e0b\u662f\u91ca\u653e\u9501\u7684\u4ee3\u7801\uff1a<\/p>\n
    def release_lock(conn, lockname, identifier):\n    pip = conn.pipeline(True)\n    while True:\n        try:\n            # watch the lock name to ensure that no one else has acquired the lock\n            pip.watch(lockname)\n            if pip.get(lockname) == identifier:\n                pip.multi()\n                pip.delete(lockname)\n                pip.execute()\n                return True\n            pip.unwatch()\n            break\n        except redis.exceptions.WatchError:\n            pass\n    return False<\/pre>\n
    \u4ee5\u4e0a\u7684\u793a\u4f8b\u4ee3\u7801\u6bd4\u8f83\u7b80\u5355\uff0c\u5e76\u4e14\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\u3002\u4f46\u662f\u5728\u5b9e\u9645\u4f7f\u7528\u4e2d\uff0c\u5206\u5e03\u5f0f\u9501\u7684\u573a\u666f\u6bd4\u8f83\u590d\u6742\uff0c\u9700\u8981\u66f4\u52a0\u5b8c\u5584\u7684\u65b9\u6848\u3002\u4e0b\u9762\u6211\u4eec\u6765\u770b\u770bZooKeeper\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\u7684\u65b9\u5f0f\u3002<\/p>\n
      \n
    1. ZooKeeper\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501<\/li>\n<\/ol>\n
      ZooKeeper\u662f\u4e00\u4e2a\u5206\u5e03\u5f0f\u534f\u8c03\u670d\u52a1\uff0c\u53ef\u4ee5\u7528\u4e8e\u534f\u8c03\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e2d\u4e0d\u540c\u8282\u70b9\u7684\u72b6\u6001\uff0c\u5f88\u591a\u5206\u5e03\u5f0f\u7cfb\u7edf\u90fd\u4f1a\u7528\u5230ZooKeeper\u6765\u534f\u8c03\u5404\u4e2a\u8282\u70b9\u3002\u5728ZooKeeper\u4e2d\uff0c\u5206\u5e03\u5f0f\u9501\u4e5f\u662f\u4e00\u79cd\u975e\u5e38\u6709\u7528\u7684\u673a\u5236\u3002<\/p>\n
      ZooKeeper\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\u7684\u57fa\u672c\u6d41\u7a0b\u5982\u4e0b\uff1a<\/p>\n
      \uff081\uff09\u521b\u5efa\u4e92\u65a5\u9501\u8282\u70b9\uff08Mutex Node\uff09<\/p>\n
      \u9996\u5148\u5ba2\u6237\u7aef\u9700\u8981\u5728ZooKeeper\u4e0a\u521b\u5efa\u4e00\u4e2a\u4e92\u65a5\u9501\u8282\u70b9\u4f5c\u4e3a\u9501\u7684\u6807\u8bc6\u3002\u53ef\u4ee5\u4f7f\u7528create\u547d\u4ee4\u521b\u5efa\u8282\u70b9\uff0c\u5982\u679c\u8282\u70b9\u5df2\u7ecf\u5b58\u5728\u5219\u4f1a\u521b\u5efa\u5931\u8d25\u3002\u5728\u521b\u5efa\u8282\u70b9\u65f6\u9700\u8981\u6307\u5b9a\u8282\u70b9\u7c7b\u578b\uff0c\u5206\u5e03\u5f0f\u9501\u4e00\u822c\u4f7f\u7528\u77ed\u6682\u6709\u5e8f\u8282\u70b9\uff0c\u4e5f\u5c31\u662f\u5728\u8282\u70b9\u540d\u79f0\u540e\u9762\u8ffd\u52a0\u4e00\u7ec4\u6570\u5b57\u6765\u4fdd\u8bc1\u8282\u70b9\u540d\u79f0\u7684\u552f\u4e00\u6027\u3002<\/p>\n
      \uff082\uff09\u83b7\u53d6\u9501<\/p>\n
      \u83b7\u53d6\u9501\u7684\u8fc7\u7a0b\u5c31\u662f\u5bf9\u4e92\u65a5\u9501\u8282\u70b9\u4e0a\u9501\u7684\u8fc7\u7a0b\u3002\u83b7\u53d6\u9501\u7684\u987a\u5e8f\u662f\u901a\u8fc7\u8282\u70b9\u540d\u79f0\u4e2d\u7684\u6570\u5b57\u987a\u5e8f\u6765\u786e\u5b9a\u7684\u3002\u5982\u679c\u5ba2\u6237\u7aef\u6210\u529f\u521b\u5efa\u4e86\u4e00\u4e2a\u4e92\u65a5\u9501\u8282\u70b9\uff0c\u90a3\u4e48\u5b83\u5c31\u62e5\u6709\u4e86\u9501\u3002\u5982\u679c\u6ca1\u6709\u6210\u529f\u521b\u5efa\u8282\u70b9\uff0c\u5219\u9700\u8981\u7b49\u5f85\u5176\u4ed6\u5ba2\u6237\u7aef\u91ca\u653e\u9501\u4e4b\u540e\u518d\u6b21\u5c1d\u8bd5\u3002<\/p>\n
      \uff083\uff09\u91ca\u653e\u9501<\/p>\n
      \u5f53\u5ba2\u6237\u7aef\u4e0d\u518d\u9700\u8981\u9501\u8d44\u6e90\u65f6\uff0c\u9700\u8981\u91ca\u653e\u9501\u3002\u91ca\u653e\u9501\u9700\u8981\u5220\u9664\u4e92\u65a5\u9501\u8282\u70b9\uff0c\u91ca\u653e\u9501\u540e\uff0c\u5176\u4ed6\u5ba2\u6237\u7aef\u901a\u8fc7Watcher\u673a\u5236\u4f1a\u7acb\u5373\u6536\u5230\u91ca\u653e\u9501\u7684\u6d88\u606f\u3002<\/p>\n
      ZooKeeper\u76f8\u6bd4Redis\u5f00\u9500\u66f4\u5927\uff0c\u9700\u8981\u542f\u52a8\u670d\u52a1\u548c\u5b89\u88c5\u548c\u7ef4\u62a4ZooKeeper\u96c6\u7fa4\uff0c\u6240\u4ee5\u5728\u5206\u5e03\u5f0f\u7cfb\u7edf\u4e2d\u4f7f\u7528ZooKeeper\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\u7684\u4f7f\u7528\u9891\u7387\u6bd4\u8f83\u4f4e\u3002\u4e0d\u8fc7ZooKeeper\u76f8\u5bf9\u6765\u8bf4\u66f4\u52a0\u7a33\u5b9a\u548c\u5b89\u5168\uff0c\u5bf9\u4e8e\u4e00\u4e9b\u5173\u952e\u7cfb\u7edf\u6765\u8bf4\uff0c\u6bd4Redis\u66f4\u4e3a\u9002\u5408\u3002<\/p>\n
      \u603b\u4f53\u800c\u8a00\uff0cRedis\u548cZooKeeper\u90fd\u662f\u975e\u5e38\u5b9e\u7528\u7684\u5206\u5e03\u5f0f\u9501\u5b9e\u73b0\u65b9\u6848\u3002\u5728\u9009\u62e9\u54ea\u79cd\u65b9\u6848\u65f6\uff0c\u9700\u8981\u6839\u636e\u5b9e\u9645\u60c5\u51b5\u8fdb\u884c\u9009\u62e9\uff0c\u5728\u6027\u80fd\u3001\u7a33\u5b9a\u6027\u3001\u5b89\u5168\u6027\u7b49\u65b9\u9762\u6743\u8861\u53d6\u820d\uff0c\u4ee5\u8fbe\u5230\u6700\u4f18\u7684\u6548\u679c\u3002<\/p>\n
      \n
      \n <\/dt>\n
      \n   \u7269\u8054\u7f51\u65f6\u4ee3\uff0cGo\u8bed\u8a00\u5f15\u9886\u6280\u672f\u6f6e\u6d41\n <\/dd>\n<\/dl>\n
      \n
      \n <\/dt>\n
      \n   \u9a6c\u65af\u514b\u524d\u5458\u5de5\u5efa\u300c\u592a\u7a7a\u5de5\u5382\u300d\uff0c\u5f00\u5c40\u5c31\u9020\u65b0\u51a0\u836fPaxlovid\uff0c\u5df2\u642dSpaceX\u706b\u7bad\u5347\u7a7a\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
      Redis\u5b9e\u73b0\u5206\u5e03\u5f0f\u9501\u7684ZooK...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-201855","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201855","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=201855"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/201855\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=201855"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=201855"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=201855"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}