{"id":839,"date":"2018-07-20T08:42:39","date_gmt":"2018-07-20T00:42:39","guid":{"rendered":"https:\/\/blog.jsjs.org\/?p=839"},"modified":"2018-07-20T08:42:39","modified_gmt":"2018-07-20T00:42:39","slug":"%e3%80%90%e5%88%86%e5%b8%83%e5%bc%8f%e3%80%91zookeeper%e8%af%b7%e6%b1%82%e5%a4%84%e7%90%86","status":"publish","type":"post","link":"https:\/\/blog.jsjs.org\/?p=839","title":{"rendered":"\u3010\u5206\u5e03\u5f0f\u3011Zookeeper\u8bf7\u6c42\u5904\u7406"},"content":{"rendered":"

\u4e00\u3001\u524d\u8a00<\/strong><\/p>\n

\u5728\u524d\u9762\u5b66\u4e60\u4e86Zookeeper\u4e2d\u670d\u52a1\u5668\u7684\u4e09\u79cd\u89d2\u8272\u53ca\u5176\u4e4b\u95f4\u7684\u901a\u4fe1\uff0c\u63a5\u7740\u5b66\u4e60\u5bf9\u4e8e\u5ba2\u6237\u7aef\u7684\u4e00\u6b21\u8bf7\u6c42\uff0cZookeeper\u662f\u5982\u4f55\u8fdb\u884c\u5904\u7406\u7684\u3002<\/p>\n

\u4e8c\u3001\u8bf7\u6c42\u5904\u7406<\/strong><\/p>\n

2.1 \u4f1a\u8bdd\u521b\u5efa\u8bf7\u6c42<\/p>\n

Zookeeper\u670d\u52a1\u7aef\u5bf9\u4e8e\u4f1a\u8bdd\u521b\u5efa\u7684\u5904\u7406\uff0c\u5927\u4f53\u53ef\u4ee5\u5206\u4e3a\u8bf7\u6c42\u63a5\u6536\u3001\u4f1a\u8bdd\u521b\u5efa\u3001\u9884\u5904\u7406\u3001\u4e8b\u52a1\u5904\u7406\u3001\u4e8b\u52a1\u5e94\u7528\u548c\u4f1a\u8bdd\u54cd\u5e94\u516d\u5927\u73af\u8282\uff0c\u5176\u5927\u4f53\u6d41\u7a0b\u5982<\/p>\n

\"\"
\n1. \u8bf7\u6c42\u63a5\u6536<\/strong><\/p>\n

(1) I\/O\u5c42\u63a5\u6536\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u3002NIOServerCnxn\u7ef4\u62a4\u6bcf\u4e00\u4e2a\u5ba2\u6237\u7aef\u8fde\u63a5\uff0c\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u7aef\u7684\u6240\u6709\u901a\u4fe1\u90fd\u662f\u7531NIOServerCnxn\u8d1f\u8d23\uff0c\u5176\u8d1f\u8d23\u7edf\u4e00\u63a5\u6536\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u6240\u6709\u8bf7\u6c42\uff0c\u5e76\u5c06\u8bf7\u6c42\u5185\u5bb9\u4ece\u5e95\u5c42\u7f51\u7edcI\/O\u4e2d\u5b8c\u6574\u5730\u8bfb\u53d6\u51fa\u6765\u3002<\/p>\n

(2) \u5224\u65ad\u662f\u5426\u662f\u5ba2\u6237\u7aef\u4f1a\u8bdd\u521b\u5efa\u8bf7\u6c42\u3002\u6bcf\u4e2a\u4f1a\u8bdd\u5bf9\u5e94\u4e00\u4e2aNIOServerCnxn\u5b9e\u4f53\uff0c\u5bf9\u4e8e\u6bcf\u4e2a\u8bf7\u6c42\uff0cZookeeper\u90fd\u4f1a\u68c0\u67e5\u5f53\u524dNIOServerCnxn\u5b9e\u4f53\u662f\u5426\u5df2\u7ecf\u88ab\u521d\u59cb\u5316\uff0c\u5982\u679c\u5c1a\u672a\u88ab\u521d\u59cb\u5316\uff0c\u90a3\u4e48\u5c31\u53ef\u4ee5\u786e\u5b9a\u8be5\u5ba2\u6237\u7aef\u4e00\u5b9a\u662f\u4f1a\u8bdd\u521b\u5efa\u8bf7\u6c42\u3002<\/p>\n

(3) \u53cd\u5e8f\u5217\u5316ConnectRequest\u8bf7\u6c42\u3002\u4e00\u65e6\u786e\u5b9a\u5ba2\u6237\u7aef\u8bf7\u6c42\u662f\u5426\u662f\u4f1a\u8bdd\u521b\u5efa\u8bf7\u6c42\uff0c\u90a3\u4e48\u670d\u52a1\u7aef\u5c31\u53ef\u4ee5\u5bf9\u5176\u8fdb\u884c\u53cd\u5e8f\u5217\u5316\uff0c\u5e76\u751f\u6210\u4e00\u4e2aConnectRequest\u8f7d\u4f53\u3002<\/p>\n

(4) \u5224\u65ad\u662f\u5426\u662fReadOnly\u5ba2\u6237\u7aef\u3002\u5982\u679c\u5f53\u524dZookeeper\u670d\u52a1\u5668\u662f\u4ee5ReadOnly\u6a21\u5f0f\u542f\u52a8\uff0c\u90a3\u4e48\u6240\u6709\u6765\u81ea\u975eReadOnly\u578b\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u5c06\u65e0\u6cd5\u88ab\u5904\u7406\u3002\u56e0\u6b64\uff0c\u670d\u52a1\u7aef\u9700\u8981\u5148\u68c0\u67e5\u662f\u5426\u662fReadOnly\u5ba2\u6237\u7aef\uff0c\u5e76\u4ee5\u6b64\u6765\u51b3\u5b9a\u662f\u5426\u63a5\u53d7\u8be5\u4f1a\u8bdd\u521b\u5efa\u8bf7\u6c42\u3002<\/p>\n

(5) \u68c0\u67e5\u5ba2\u6237\u7aefZXID\u3002\u6b63\u5e38\u60c5\u51b5\u4e0b\uff0c\u5728\u4e00\u4e2aZookeeper\u96c6\u7fa4\u4e2d\uff0c\u670d\u52a1\u7aef\u7684ZXID\u5fc5\u5b9a\u5927\u4e8e\u5ba2\u6237\u7aef\u7684ZXID\uff0c\u56e0\u6b64\u82e5\u53d1\u73b0\u5ba2\u6237\u7aef\u7684ZXID\u5927\u4e8e\u670d\u52a1\u7aefZXID\uff0c\u90a3\u4e48\u670d\u52a1\u7aef\u4e0d\u63a5\u53d7\u8be5\u5ba2\u6237\u7aef\u7684\u4f1a\u8bdd\u521b\u5efa\u8bf7\u6c42\u3002<\/p>\n

(6) \u534f\u5546sessionTimeout\u3002\u5728\u5ba2\u6237\u7aef\u5411\u670d\u52a1\u5668\u53d1\u9001\u8d85\u65f6\u65f6\u95f4\u540e\uff0c\u670d\u52a1\u5668\u4f1a\u6839\u636e\u81ea\u5df1\u7684\u8d85\u65f6\u65f6\u95f4\u9650\u5236\u6700\u7ec8\u786e\u5b9a\u8be5\u4f1a\u8bdd\u8d85\u65f6\u65f6\u95f4\uff0c\u8fd9\u4e2a\u8fc7\u7a0b\u5c31\u662fsessionTimeout\u534f\u5546\u8fc7\u7a0b\u3002<\/p>\n

(7) \u5224\u65ad\u662f\u5426\u9700\u8981\u91cd\u65b0\u6fc0\u6d3b\u521b\u5efa\u4f1a\u8bdd\u3002\u670d\u52a1\u7aef\u6839\u636e\u5ba2\u6237\u7aef\u8bf7\u6c42\u4e2d\u662f\u5426\u5305\u542bsessionID\u6765\u5224\u65ad\u8be5\u5ba2\u6237\u7aef\u662f\u5426\u9700\u8981\u91cd\u65b0\u521b\u5efa\u4f1a\u8bdd\uff0c\u82e5\u5ba2\u6237\u5355\u8bf7\u6c42\u4e2d\u5305\u542bsessionID\uff0c\u90a3\u4e48\u5c31\u8ba4\u4e3a\u8be5\u5ba2\u6237\u7aef\u6b63\u5728\u8fdb\u884c\u4f1a\u8bdd\u91cd\u8fde\uff0c\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u670d\u52a1\u7aef\u53ea\u9700\u8981\u91cd\u65b0\u6253\u5f00\u8fd9\u4e2a\u4f1a\u8bdd\uff0c\u5426\u5219\u9700\u8981\u91cd\u65b0\u521b\u5efa\u3002<\/p>\n

\u30002. \u4f1a\u8bdd\u521b\u5efa<\/strong><\/p>\n

(1) \u4e3a\u5ba2\u6237\u7aef\u751f\u6210sessionID\u3002\u5728\u4e3a\u5ba2\u6237\u7aef\u521b\u5efa\u4f1a\u8bdd\u4e4b\u524d\uff0c\u670d\u52a1\u7aef\u9996\u5148\u4f1a\u4e3a\u6bcf\u4e2a\u5ba2\u6237\u7aef\u5206\u914d\u4e00\u4e2asessionID\uff0c\u670d\u52a1\u7aef\u4e3a\u5ba2\u6237\u7aef\u5206\u914d\u7684sessionID\u662f\u5168\u5c40\u552f\u4e00\u7684\u3002<\/p>\n

(2) \u6ce8\u518c\u4f1a\u8bdd\u3002\u5411SessionTracker\u4e2d\u6ce8\u518c\u4f1a\u8bdd\uff0cSessionTracker\u4e2d\u7ef4\u62a4\u4e86sessionsWithTimeout\u548csessionsById\uff0c\u5728\u4f1a\u8bdd\u521b\u5efa\u521d\u671f\uff0c\u4f1a\u5c06\u5ba2\u6237\u7aef\u4f1a\u8bdd\u7684\u76f8\u5173\u4fe1\u606f\u4fdd\u5b58\u5230\u8fd9\u4e24\u4e2a\u6570\u636e\u7ed3\u6784\u4e2d\u3002<\/p>\n

(3) \u6fc0\u6d3b\u4f1a\u8bdd\u3002\u6fc0\u6d3b\u4f1a\u8bdd\u6d89\u53caZookeeper\u4f1a\u8bdd\u7ba1\u7406\u7684\u5206\u6876\u7b56\u7565\uff0c\u5176\u6838\u5fc3\u662f\u4e3a\u4f1a\u8bdd\u5b89\u6392\u4e00\u4e2a\u533a\u5757\uff0c\u4ee5\u4fbf\u4f1a\u8bdd\u6e05\u7406\u7a0b\u5e8f\u80fd\u591f\u5feb\u901f\u9ad8\u6548\u5730\u8fdb\u884c\u4f1a\u8bdd\u6e05\u7406\u3002<\/p>\n

(4) \u751f\u6210\u4f1a\u8bdd\u5bc6\u7801\u3002\u670d\u52a1\u7aef\u5728\u521b\u5efa\u4e00\u4e2a\u5ba2\u6237\u7aef\u4f1a\u8bdd\u65f6\uff0c\u4f1a\u540c\u65f6\u4e3a\u5ba2\u6237\u7aef\u751f\u6210\u4e00\u4e2a\u4f1a\u8bdd\u5bc6\u7801\uff0c\u8fde\u540csessionID\u4e00\u540c\u53d1\u7ed9\u5ba2\u6237\u7aef\uff0c\u4f5c\u4e3a\u4f1a\u8bdd\u5728\u96c6\u7fa4\u4e2d\u4e0d\u540c\u673a\u5668\u95f4\u8f6c\u79fb\u7684\u51ed\u8bc1\u3002<\/p>\n

3. \u9884\u5904\u7406<\/strong><\/p>\n

(1) \u5c06\u8bf7\u6c42\u4ea4\u7ed9PrepRequestProcessor\u5904\u7406\u5668\u5904\u7406\u3002\u5728\u63d0\u4ea4\u7ed9\u7b2c\u4e00\u4e2a\u8bf7\u6c42\u5904\u7406\u5668\u4e4b\u524d\uff0cZookeeper\u4f1a\u6839\u636e\u8be5\u8bf7\u6c42\u6240\u5c5e\u7684\u4f1a\u8bdd\uff0c\u8fdb\u884c\u4e00\u6b21\u6fc0\u6d3b\u4f1a\u8bdd\u64cd\u4f5c\uff0c\u4ee5\u786e\u4fdd\u5f53\u524d\u4f1a\u8bdd\u5904\u4e8e\u6fc0\u6d3b\u72b6\u6001\uff0c\u5b8c\u6210\u4f1a\u8bdd\u6fc0\u6d3b\u540e\uff0c\u5219\u63d0\u4ea4\u8bf7\u6c42\u81f3\u5904\u7406\u5668\u3002<\/p>\n

(2) \u521b\u5efa\u8bf7\u6c42\u4e8b\u52a1\u5934\u3002\u5bf9\u4e8e\u4e8b\u52a1\u8bf7\u6c42\uff0cZookeeper\u4f1a\u4e3a\u5176\u521b\u5efa\u8bf7\u6c42\u4e8b\u52a1\u5934\uff0c\u670d\u52a1\u7aef\u540e\u7eed\u7684\u8bf7\u6c42\u5904\u7406\u5668\u90fd\u662f\u57fa\u4e8e\u8be5\u8bf7\u6c42\u5934\u6765\u8bc6\u522b\u5f53\u524d\u8bf7\u6c42\u662f\u5426\u662f\u4e8b\u52a1\u8bf7\u6c42\uff0c\u8bf7\u6c42\u4e8b\u52a1\u5934\u5305\u542b\u4e86\u4e00\u4e2a\u4e8b\u52a1\u8bf7\u6c42\u6700\u57fa\u672c\u7684\u4e00\u4e9b\u4fe1\u606f\uff0c\u5305\u62ecsessionID\u3001ZXID\uff08\u4e8b\u52a1\u8bf7\u6c42\u5bf9\u5e94\u7684\u4e8b\u52a1ZXID\uff09\u3001CXID\uff08\u5ba2\u6237\u7aef\u7684\u64cd\u4f5c\u5e8f\u5217\uff09\u548c\u8bf7\u6c42\u7c7b\u578b\uff08\u5982create\u3001delete\u3001setData\u3001createSession\u7b49\uff09\u7b49\u3002<\/p>\n

(3) \u521b\u5efa\u8bf7\u6c42\u4e8b\u52a1\u4f53\u3002\u7531\u4e8e\u6b64\u65f6\u662f\u4f1a\u8bdd\u521b\u5efa\u8bf7\u6c42\uff0c\u5176\u4e8b\u52a1\u4f53\u662fCreateSessionTxn\u3002<\/p>\n

(4) \u6ce8\u518c\u4e8e\u6fc0\u6d3b\u4f1a\u8bdd\u3002\u5904\u7406\u7531\u975eLeader\u670d\u52a1\u5668\u8f6c\u53d1\u8fc7\u6765\u7684\u4f1a\u8bdd\u521b\u5efa\u8bf7\u6c42\u3002<\/p>\n

4. \u4e8b\u52a1\u5904\u7406<\/strong><\/p>\n

(1) \u5c06\u8bf7\u6c42\u4ea4\u7ed9ProposalRequestProcessor\u5904\u7406\u5668\u3002\u4e0e\u63d0\u8bae\u76f8\u5173\u7684\u5904\u7406\u5668\uff0c\u4eceProposalRequestProcessor\u5f00\u59cb\uff0c\u8bf7\u6c42\u7684\u5904\u7406\u5c06\u4f1a\u8fdb\u5165\u4e09\u4e2a\u5b50\u5904\u7406\u6d41\u7a0b\uff0c\u5206\u522b\u662fSync\u6d41\u7a0b\u3001Proposal\u6d41\u7a0b\u3001Commit\u6d41\u7a0b\u3002<\/p>\n

\"\"<\/p>\n

Sync\u6d41\u7a0b<\/strong><\/p>\n

\u4f7f\u7528SyncRequestProcessor\u5904\u7406\u5668\u8bb0\u5f55\u4e8b\u52a1\u65e5\u5fd7\uff0c\u9488\u5bf9\u6bcf\u4e2a\u4e8b\u52a1\u8bf7\u6c42\uff0c\u90fd\u4f1a\u901a\u8fc7\u4e8b\u52a1\u65e5\u5fd7\u7684\u5f62\u5f0f\u5c06\u5176\u8bb0\u5f55\uff0c\u5b8c\u6210\u65e5\u5fd7\u8bb0\u5f55\u540e\uff0c\u6bcf\u4e2aFollower\u90fd\u4f1a\u5411Leader\u53d1\u9001ACK\u6d88\u606f\uff0c\u8868\u660e\u81ea\u8eab\u5b8c\u6210\u4e86\u4e8b\u52a1\u65e5\u5fd7\u7684\u8bb0\u5f55\uff0c\u4ee5\u4fbfLeader\u7edf\u8ba1\u6bcf\u4e2a\u4e8b\u52a1\u8bf7\u6c42\u7684\u6295\u7968\u60c5\u51b5\u3002<\/p>\n

Proposal\u6d41\u7a0b<\/strong><\/p>\n

\u6bcf\u4e2a\u4e8b\u52a1\u8bf7\u6c42\u90fd\u9700\u8981\u96c6\u7fa4\u4e2d\u8fc7\u534a\u673a\u5668\u6295\u7968\u8ba4\u53ef\u624d\u80fd\u88ab\u771f\u6b63\u5e94\u7528\u5230\u5185\u5b58\u6570\u636e\u5e93\u4e2d\uff0c\u8fd9\u4e2a\u6295\u7968\u4e0e\u7edf\u8ba1\u8fc7\u7a0b\u5c31\u662fProposal\u6d41\u7a0b\u3002<\/p>\n

\u00b7 \u53d1\u8d77\u6295\u7968\u3002\u82e5\u5f53\u524d\u8bf7\u6c42\u662f\u4e8b\u52a1\u8bf7\u6c42\uff0cLeader\u4f1a\u53d1\u8d77\u4e00\u8f6e\u4e8b\u52a1\u6295\u7968\uff0c\u5728\u53d1\u8d77\u4e8b\u52a1\u6295\u7968\u4e4b\u524d\uff0c\u4f1a\u68c0\u67e5\u5f53\u524d\u670d\u52a1\u7aef\u7684ZXID\u662f\u5426\u53ef\u7528\u3002<\/p>\n

\u00b7 \u751f\u6210\u63d0\u8baeProposal\u3002\u82e5ZXID\u53ef\u7528\uff0cZookeeper\u4f1a\u5c06\u5df2\u521b\u5efa\u7684\u8bf7\u6c42\u5934\u548c\u4e8b\u52a1\u4f53\u4ee5\u53caZXID\u548c\u8bf7\u6c42\u672c\u8eab\u5e8f\u5217\u5316\u5230Proposal\u5bf9\u8c61\u4e2d\uff0c\u6b64Proposal\u5bf9\u8c61\u5c31\u662f\u4e00\u4e2a\u63d0\u8bae\u3002<\/p>\n

\u00b7 \u5e7f\u64ad\u63d0\u8bae\u3002Leader\u4ee5ZXID\u4f5c\u4e3a\u6807\u8bc6\uff0c\u5c06\u8be5\u63d0\u8bae\u653e\u5165\u6295\u7968\u7bb1outstandingProposals\u4e2d\uff0c\u540c\u65f6\u5c06\u8be5\u63d0\u8bae\u5e7f\u64ad\u7ed9\u6240\u6709Follower\u3002<\/p>\n

\u00b7 \u6536\u96c6\u6295\u7968\u3002Follower\u63a5\u6536\u5230Leader\u63d0\u8bae\u540e\uff0c\u8fdb\u5165Sync\u6d41\u7a0b\u8fdb\u884c\u65e5\u5fd7\u8bb0\u5f55\uff0c\u8bb0\u5f55\u5b8c\u6210\u540e\uff0c\u53d1\u9001ACK\u6d88\u606f\u81f3Leader\u670d\u52a1\u5668\uff0cLeader\u6839\u636e\u8fd9\u4e9bACK\u6d88\u606f\u6765\u7edf\u8ba1\u6bcf\u4e2a\u63d0\u8bae\u7684\u6295\u7968\u60c5\u51b5\uff0c\u5f53\u4e00\u4e2a\u63d0\u8bae\u83b7\u5f97\u534a\u6570\u4ee5\u4e0a\u6295\u7968\u65f6\uff0c\u5c31\u8ba4\u4e3a\u8be5\u63d0\u8bae\u901a\u8fc7\uff0c\u8fdb\u5165Commit\u9636\u6bb5\u3002<\/p>\n

\u00b7 \u5c06\u8bf7\u6c42\u653e\u5165toBeApplied\u961f\u5217\u4e2d\u3002<\/p>\n

\u00b7 \u5e7f\u64adCommit\u6d88\u606f\u3002Leader\u5411Follower\u548cObserver\u53d1\u9001COMMIT\u6d88\u606f\u3002\u5411Observer\u53d1\u9001INFORM\u6d88\u606f\uff0c\u5411Leader\u53d1\u9001ZXID\u3002<\/p>\n

Commit\u6d41\u7a0b<\/strong><\/p>\n

\u00b7 \u5c06\u8bf7\u6c42\u4ea4\u4ed8CommitProcessor\u3002CommitProcessor\u6536\u5230\u8bf7\u6c42\u540e\uff0c\u5c06\u5176\u653e\u5165queuedRequests\u961f\u5217\u4e2d\u3002<\/p>\n

\u00b7 \u5904\u7406queuedRequest\u961f\u5217\u8bf7\u6c42\u3002CommitProcessor\u4e2d\u5355\u72ec\u7684\u7ebf\u7a0b\u5904\u7406queuedRequests\u961f\u5217\u4e2d\u7684\u8bf7\u6c42\u3002<\/p>\n

\u00b7 \u6807\u8bb0nextPending\u3002\u82e5\u4ecequeuedRequests\u4e2d\u53d6\u51fa\u7684\u662f\u4e8b\u52a1\u8bf7\u6c42\uff0c\u5219\u9700\u8981\u5728\u96c6\u7fa4\u4e2d\u8fdb\u884c\u6295\u7968\u5904\u7406\uff0c\u540c\u65f6\u5c06nextPending\u6807\u8bb0\u4f4d\u5f53\u524d\u8bf7\u6c42\u3002<\/p>\n

\u00b7 \u7b49\u5f85Proposal\u6295\u7968\u3002\u5728\u8fdb\u884cCommit\u6d41\u7a0b\u7684\u540c\u65f6\uff0cLeader\u4f1a\u751f\u6210Proposal\u5e76\u5e7f\u64ad\u7ed9\u6240\u6709Follower\u670d\u52a1\u5668\uff0c\u6b64\u65f6\uff0cCommit\u6d41\u7a0b\u7b49\u5f85\uff0c\u76f4\u5230\u6295\u7968\u7ed3\u675f\u3002<\/p>\n

\u00b7 \u6295\u7968\u901a\u8fc7\u3002\u82e5\u63d0\u8bae\u83b7\u5f97\u8fc7\u534a\u673a\u5668\u8ba4\u53ef\uff0c\u5219\u8fdb\u5165\u8bf7\u6c42\u63d0\u4ea4\u9636\u6bb5\uff0c\u8be5\u8bf7\u6c42\u4f1a\u88ab\u653e\u5165commitedRequests\u961f\u5217\u4e2d\uff0c\u540c\u65f6\u5524\u9192Commit\u6d41\u7a0b\u3002<\/p>\n

\u00b7 \u63d0\u4ea4\u8bf7\u6c42\u3002\u82e5commitedRequests\u961f\u5217\u4e2d\u5b58\u5728\u53ef\u4ee5\u63d0\u4ea4\u7684\u8bf7\u6c42\uff0c\u90a3\u4e48Commit\u6d41\u7a0b\u5219\u5f00\u59cb\u63d0\u4ea4\u8bf7\u6c42\uff0c\u5c06\u8bf7\u6c42\u653e\u5165toProcess\u961f\u5217\u4e2d\uff0c\u7136\u540e\u4ea4\u4ed8\u4e0b\u4e00\u4e2a\u8bf7\u6c42\u5904\u7406\u5668\uff1aFinalRequestProcessor\u3002<\/p>\n

5. \u4e8b\u52a1\u5e94\u7528<\/strong><\/p>\n

(1) \u4ea4\u4ed8\u7ed9FinalRequestProcessor\u5904\u7406\u5668\u3002FinalRequestProcessor\u5904\u7406\u5668\u68c0\u67e5outstandingChanges\u961f\u5217\u4e2d\u8bf7\u6c42\u7684\u6709\u6548\u6027\uff0c\u82e5\u53d1\u73b0\u8fd9\u4e9b\u8bf7\u6c42\u5df2\u7ecf\u843d\u540e\u4e8e\u5f53\u524d\u6b63\u5728\u5904\u7406\u7684\u8bf7\u6c42\uff0c\u90a3\u4e48\u76f4\u63a5\u4eceoutstandingChanges\u961f\u5217\u4e2d\u79fb\u9664\u3002<\/p>\n

(2) \u4e8b\u52a1\u5e94\u7528\u3002\u4e4b\u524d\u7684\u8bf7\u6c42\u5904\u7406\u4ec5\u4ec5\u5c06\u4e8b\u52a1\u8bf7\u6c42\u8bb0\u5f55\u5230\u4e86\u4e8b\u52a1\u65e5\u5fd7\u4e2d\uff0c\u800c\u5185\u5b58\u6570\u636e\u5e93\u4e2d\u7684\u72b6\u6001\u5c1a\u672a\u6539\u53d8\uff0c\u56e0\u6b64\uff0c\u9700\u8981\u5c06\u4e8b\u52a1\u53d8\u66f4\u5e94\u7528\u5230\u5185\u5b58\u6570\u636e\u5e93\u3002<\/p>\n

(3) \u5c06\u4e8b\u52a1\u8bf7\u6c42\u653e\u5165\u961f\u5217commitProposal\u3002\u5b8c\u6210\u4e8b\u52a1\u5e94\u7528\u540e\uff0c\u5219\u5c06\u8be5\u8bf7\u6c42\u653e\u5165commitProposal\u961f\u5217\u4e2d\uff0ccommitProposal\u7528\u6765\u4fdd\u5b58\u6700\u8fd1\u88ab\u63d0\u4ea4\u7684\u4e8b\u52a1\u8bf7\u6c42\uff0c\u4ee5\u4fbf\u96c6\u7fa4\u95f4\u673a\u5668\u8fdb\u884c\u6570\u636e\u7684\u5feb\u901f\u540c\u6b65\u3002<\/p>\n

6. \u4f1a\u8bdd\u54cd\u5e94<\/strong><\/p>\n

(1) \u7edf\u8ba1\u5904\u7406\u3002Zookeeper\u8ba1\u7b97\u8bf7\u6c42\u5728\u670d\u52a1\u7aef\u5904\u7406\u6240\u82b1\u8d39\u7684\u65f6\u95f4\uff0c\u7edf\u8ba1\u5ba2\u6237\u7aef\u8fde\u63a5\u7684\u57fa\u672c\u4fe1\u606f\uff0c\u5982lastZxid(\u6700\u65b0\u7684ZXID)\u3001lastOp(\u6700\u540e\u4e00\u6b21\u548c\u670d\u52a1\u7aef\u7684\u64cd\u4f5c)\u3001lastLatency(\u6700\u540e\u4e00\u6b21\u8bf7\u6c42\u5904\u7406\u6240\u82b1\u8d39\u7684\u65f6\u95f4)\u7b49\u3002<\/p>\n

(2) \u521b\u5efa\u54cd\u5e94ConnectResponse\u3002\u4f1a\u8bdd\u521b\u5efa\u6210\u529f\u540e\u7684\u54cd\u5e94\uff0c\u5305\u542b\u4e86\u5f53\u524d\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u7aef\u4e4b\u95f4\u7684\u901a\u4fe1\u534f\u8bae\u7248\u672c\u53f7\u3001\u4f1a\u8bdd\u8d85\u65f6\u65f6\u95f4\u3001sessionID\u548c\u4f1a\u8bdd\u5bc6\u7801\u3002<\/p>\n

(3) \u5e8f\u5217\u5316ConnectResponse\u3002<\/p>\n

(4) I\/O\u5c42\u53d1\u9001\u54cd\u5e94\u7ed9\u5ba2\u6237\u7aef\u3002<\/p>\n

2.2 SetData\u8bf7\u6c42<\/p>\n

\u670d\u52a1\u7aef\u5bf9\u4e8eSetData\u8bf7\u6c42\u5927\u81f4\u53ef\u4ee5\u5206\u4e3a\u56db\u6b65\uff0c\u9884\u5904\u7406\u3001\u4e8b\u52a1\u5904\u7406\u3001\u4e8b\u52a1\u5e94\u7528\u3001\u8bf7\u6c42\u54cd\u5e94\u3002<\/p>\n

\u30001. \u9884\u5904\u7406<\/strong><\/p>\n

(1) I\/O\u5c42\u63a5\u6536\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u3002<\/p>\n

(2) \u5224\u65ad\u662f\u5426\u662f\u5ba2\u6237\u7aef”\u4f1a\u8bdd\u521b\u5efa”\u8bf7\u6c42\u3002\u5bf9\u4e8eSetData\u8bf7\u6c42\uff0c\u6309\u7167\u6b63\u5e38\u4e8b\u52a1\u8bf7\u6c42\u8fdb\u884c\u5904\u7406\u3002<\/p>\n

(3) \u5c06\u8bf7\u6c42\u4ea4\u7ed9PrepRequestProcessor\u5904\u7406\u5668\u8fdb\u884c\u5904\u7406\u3002<\/p>\n

(4) \u521b\u5efa\u8bf7\u6c42\u4e8b\u52a1\u5934\u3002<\/p>\n

(5) \u4f1a\u8bdd\u68c0\u67e5\u3002\u68c0\u67e5\u8be5\u4f1a\u8bdd\u662f\u5426\u6709\u6548\u3002<\/p>\n

(6) \u53cd\u5e8f\u5217\u5316\u8bf7\u6c42\uff0c\u5e76\u521b\u5efaChangeRecord\u8bb0\u5f55\u3002\u53cd\u5e8f\u5217\u5316\u5e76\u751f\u6210\u7279\u5b9a\u7684SetDataRequest\u8bf7\u6c42\uff0c\u8bf7\u6c42\u4e2d\u5305\u542b\u4e86\u6570\u636e\u8282\u70b9\u8def\u5f84path\u3001\u66f4\u65b0\u7684\u5185\u5bb9data\u548c\u671f\u671b\u7684\u6570\u636e\u8282\u70b9\u7248\u672cversion\u3002\u540c\u65f6\u6839\u636e\u8bf7\u6c42\u5bf9\u5e94\u7684path\uff0cZookeeper\u751f\u6210\u4e00\u4e2aChangeRecord\u8bb0\u5f55\uff0c\u5e76\u653e\u5165outstandingChanges\u961f\u5217\u4e2d\u3002<\/p>\n

(7) ACL\u68c0\u67e5\u3002\u68c0\u67e5\u5ba2\u6237\u7aef\u662f\u5426\u5177\u6709\u6570\u636e\u66f4\u65b0\u7684\u6743\u9650\u3002<\/p>\n

(8) \u6570\u636e\u7248\u672c\u68c0\u67e5\u3002\u901a\u8fc7version\u5c5e\u6027\u6765\u5b9e\u73b0\u4e50\u89c2\u9501\u673a\u5236\u7684\u5199\u5165\u6821\u9a8c\u3002<\/p>\n

(9) \u521b\u5efa\u8bf7\u6c42\u4e8b\u52a1\u4f53SetDataTxn\u3002<\/p>\n

(10) \u4fdd\u5b58\u4e8b\u52a1\u64cd\u4f5c\u5230outstandingChanges\u961f\u5217\u4e2d\u3002<\/p>\n

2. \u4e8b\u52a1\u5904\u7406<\/strong><\/p>\n

\u5bf9\u4e8e\u4e8b\u52a1\u8bf7\u6c42\uff0c\u670d\u52a1\u7aef\u90fd\u4f1a\u53d1\u8d77\u4e8b\u52a1\u5904\u7406\u6d41\u7a0b\u3002\u6240\u6709\u4e8b\u52a1\u8bf7\u6c42\u90fd\u662f\u7531ProposalRequestProcessor\u5904\u7406\u5668\u5904\u7406\uff0c\u901a\u8fc7Sync\u3001Proposal\u3001Commit\u4e09\u4e2a\u5b50\u6d41\u7a0b\u76f8\u4e92\u534f\u4f5c\u5b8c\u6210\u3002<\/p>\n

3. \u4e8b\u52a1\u5e94\u7528<\/strong><\/p>\n

(1) \u4ea4\u4ed8\u7ed9FinalRequestProcessor\u5904\u7406\u5668\u3002<\/p>\n

(2) \u4e8b\u52a1\u5e94\u7528\u3002\u5c06\u8bf7\u6c42\u4e8b\u52a1\u5934\u548c\u4e8b\u52a1\u4f53\u76f4\u63a5\u4ea4\u7ed9\u5185\u5b58\u6570\u636e\u5e93ZKDatabase\u8fdb\u884c\u4e8b\u52a1\u5e94\u7528\uff0c\u540c\u65f6\u8fd4\u56deProcessTxnResult\u5bf9\u8c61\uff0c\u5305\u542b\u4e86\u6570\u636e\u8282\u70b9\u5185\u5bb9\u66f4\u65b0\u540e\u7684stat\u3002<\/p>\n

(3) \u5c06\u4e8b\u52a1\u8bf7\u6c42\u653e\u5165commitProposal\u961f\u5217\u3002<\/p>\n

4. \u8bf7\u6c42\u54cd\u5e94<\/p>\n

(1) \u521b\u5efa\u54cd\u5e94\u4f53SetDataResponse\u3002\u5176\u5305\u542b\u4e86\u5f53\u524d\u6570\u636e\u8282\u70b9\u7684\u6700\u65b0\u72b6\u6001stat\u3002<\/p>\n

(2) \u521b\u5efa\u54cd\u5e94\u5934\u3002\u5305\u542b\u5f53\u524d\u54cd\u5e94\u5bf9\u5e94\u7684\u4e8b\u52a1ZXID\u548c\u8bf7\u6c42\u5904\u7406\u662f\u5426\u6210\u529f\u7684\u6807\u8bc6\u3002<\/p>\n

(3) \u5e8f\u5217\u5316\u54cd\u5e94\u3002<\/p>\n

(4) I\/O\u5c42\u53d1\u9001\u54cd\u5e94\u7ed9\u5ba2\u6237\u7aef\u3002<\/p>\n

2.3 GetData\u8bf7\u6c42<\/p>\n

\u670d\u52a1\u7aef\u5bf9\u4e8eGetData\u8bf7\u6c42\u7684\u5904\u7406\uff0c\u5927\u81f4\u5206\u4e3a\u4e09\u6b65\uff0c\u9884\u5904\u7406\u3001\u975e\u4e8b\u52a1\u5904\u7406\u3001\u8bf7\u6c42\u54cd\u5e94\u3002<\/p>\n

1. \u9884\u5904\u7406<\/strong><\/p>\n

(1) I\/O\u5c42\u63a5\u6536\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u3002<\/p>\n

(2) \u5224\u65ad\u662f\u5426\u662f\u5ba2\u6237\u7aef”\u4f1a\u8bdd\u521b\u5efa”\u8bf7\u6c42\u3002<\/p>\n

(3) \u5c06\u8bf7\u6c42\u4ea4\u7ed9PrepRequestProcessor\u5904\u7406\u5668\u8fdb\u884c\u5904\u7406\u3002<\/p>\n

(4) \u4f1a\u8bdd\u68c0\u67e5\u3002<\/p>\n

2. \u975e\u4e8b\u52a1\u5904\u7406<\/strong><\/p>\n

(1) \u53cd\u5e8f\u5217\u5316GetDataRequest\u8bf7\u6c42\u3002<\/p>\n

(2) \u83b7\u53d6\u6570\u636e\u8282\u70b9\u3002<\/p>\n

(3) ACL\u68c0\u67e5\u3002<\/p>\n

(4) \u83b7\u53d6\u6570\u636e\u5185\u5bb9\u548cstat\uff0c\u6ce8\u518cWatcher\u3002<\/p>\n

3. \u8bf7\u6c42\u54cd\u5e94<\/strong><\/p>\n

(1) \u521b\u5efa\u54cd\u5e94\u4f53GetDataResponse\u3002\u54cd\u5e94\u4f53\u5305\u542b\u5f53\u524d\u6570\u636e\u8282\u70b9\u7684\u5185\u5bb9\u548c\u72b6\u6001stat\u3002<\/p>\n

(2) \u521b\u5efa\u54cd\u5e94\u5934\u3002<\/p>\n

(3) \u7edf\u8ba1\u5904\u7406\u3002<\/p>\n

(4) \u5e8f\u5217\u5316\u54cd\u5e94\u3002<\/p>\n

(5) I\/O\u5c42\u53d1\u9001\u54cd\u5e94\u7ed9\u5ba2\u6237\u7aef\u3002<\/p>\n

\u4e09\u3001\u603b\u7ed3<\/strong><\/p>\n

\u672c\u7bc7\u535a\u6587\u8bb2\u89e3\u4e86Zookeeper\u670d\u52a1\u7aef\u5bf9\u4e8e\u5ba2\u6237\u7aef\u4e0d\u540c\u8bf7\u6c42\u7684\u5904\u7406\u7684\u5177\u4f53\u6d41\u7a0b\uff0c\u53ef\u80fd\u4ece\u6587\u5b57\u4e0a\u770b\u6b65\u9aa4\u4f1a\u663e\u5f97\u76f8\u5bf9\u67af\u71e5\uff0c\u4f46\u662f\u4f1a\u4e3a\u4e4b\u540e\u7684\u6e90\u7801\u5206\u6790\u6253\u4e0b\u5f88\u597d\u7684\u57fa\u7840\uff0c\u8c22\u8c22\u5404\u4f4d\u56ed\u53cb\u7684\u89c2\u770b~<\/p>\n","protected":false},"excerpt":{"rendered":"

\u4e00\u3001\u524d\u8a00 \u5728\u524d\u9762\u5b66\u4e60\u4e86Zookeeper\u4e2d\u670d\u52a1\u5668\u7684\u4e09\u79cd\u89d2\u8272\u53ca\u5176\u4e4b\u95f4\u7684\u901a\u4fe1\uff0c\u63a5\u7740\u5b66\u4e60\u5bf9\u4e8e\u5ba2\u6237\u7aef\u7684\u4e00\u6b21\u8bf7\u6c42\uff0cZookeeper\u662f\u5982\u4f55\u8fdb\u884c\u5904\u7406\u7684\u3002 \u4e8c\u3001\u8bf7\u6c42\u5904\u7406 2.1 \u4f1a\u8bdd\u521b\u5efa\u8bf7\u6c42 Zookeeper\u670d\u52a1\u7aef\u5bf9\u4e8e\u4f1a\u8bdd\u521b\u5efa\u7684\u5904\u7406\uff0c\u5927\u4f53\u53ef\u4ee5\u5206\u4e3a\u8bf7\u6c42\u63a5\u6536\u3001\u4f1a\u8bdd\u521b\u5efa\u3001\u9884\u5904\u7406\u3001\u4e8b\u52a1\u5904\u7406\u3001\u4e8b\u52a1\u5e94\u7528\u548c\u4f1a\u8bdd\u54cd\u5e94\u516d\u5927\u73af\u8282\uff0c\u5176\u5927\u4f53\u6d41\u7a0b\u5982 1. \u8bf7\u6c42\u63a5\u6536 (1) I\/O\u5c42\u63a5\u6536\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u3002NIOServerCnxn\u7ef4\u62a4\u6bcf\u4e00\u4e2a\u5ba2\u6237\u7aef\u8fde\u63a5\uff0c\u5ba2\u6237\u7aef\u4e0e\u670d\u52a1\u5668\u7aef\u7684\u6240\u6709\u901a\u4fe1\u90fd\u662f\u7531NIOServerCnxn\u8d1f\u8d23\uff0c\u5176\u8d1f\u8d23\u7edf\u4e00\u63a5\u6536\u6765\u81ea\u5ba2\u6237\u7aef\u7684\u6240\u6709\u8bf7\u6c42\uff0c\u5e76\u5c06\u8bf7\u6c42\u5185\u5bb9\u4ece\u5e95\u5c42\u7f51\u7edcI\/O\u4e2d\u5b8c\u6574\u5730\u8bfb\u53d6\u51fa\u6765\u3002 (2) \u5224\u65ad\u662f\u5426\u662f\u5ba2\u6237\u7aef\u4f1a\u8bdd\u521b\u5efa\u8bf7\u6c42\u3002\u6bcf\u4e2a\u4f1a\u8bdd\u5bf9\u5e94\u4e00\u4e2aNIOServerCnxn\u5b9e\u4f53\uff0c\u5bf9\u4e8e\u6bcf\u4e2a\u8bf7\u6c42\uff0cZookeeper\u90fd\u4f1a\u68c0\u67e5\u5f53\u524dNIOServerCnxn\u5b9e\u4f53\u662f\u5426\u5df2\u7ecf\u88ab\u521d\u59cb\u5316\uff0c\u5982\u679c\u5c1a\u672a\u88ab\u521d\u59cb\u5316\uff0c\u90a3\u4e48\u5c31\u53ef\u4ee5\u786e\u5b9a\u8be5\u5ba2\u6237\u7aef\u4e00\u5b9a\u662f\u4f1a\u8bdd\u521b\u5efa\u8bf7\u6c42\u3002 (3) \u53cd\u5e8f\u5217\u5316ConnectRequest\u8bf7\u6c42\u3002\u4e00\u65e6\u786e\u5b9a\u5ba2\u6237\u7aef\u8bf7\u6c42\u662f\u5426\u662f\u4f1a\u8bdd\u521b\u5efa\u8bf7\u6c42\uff0c\u90a3\u4e48\u670d\u52a1\u7aef\u5c31\u53ef\u4ee5\u5bf9\u5176\u8fdb\u884c\u53cd\u5e8f\u5217\u5316\uff0c\u5e76\u751f\u6210\u4e00\u4e2aConnectRequest\u8f7d\u4f53\u3002 (4) \u5224\u65ad\u662f\u5426\u662fReadOnly\u5ba2\u6237\u7aef\u3002\u5982\u679c\u5f53\u524dZookeeper\u670d\u52a1\u5668\u662f\u4ee5ReadOnly\u6a21\u5f0f\u542f\u52a8\uff0c\u90a3\u4e48\u6240\u6709\u6765\u81ea\u975eReadOnly\u578b\u5ba2\u6237\u7aef\u7684\u8bf7\u6c42\u5c06\u65e0\u6cd5\u88ab\u5904\u7406\u3002\u56e0\u6b64\uff0c\u670d\u52a1\u7aef\u9700\u8981\u5148\u68c0\u67e5\u662f\u5426\u662fReadOnly\u5ba2\u6237\u7aef\uff0c\u5e76\u4ee5\u6b64\u6765\u51b3\u5b9a\u662f\u5426\u63a5\u53d7\u8be5\u4f1a\u8bdd\u521b\u5efa\u8bf7\u6c42\u3002 (5) \u68c0\u67e5\u5ba2\u6237\u7aefZXID\u3002\u6b63\u5e38\u60c5\u51b5\u4e0b\uff0c\u5728\u4e00\u4e2aZookeeper\u96c6\u7fa4\u4e2d\uff0c\u670d\u52a1\u7aef\u7684ZXID\u5fc5\u5b9a\u5927\u4e8e\u5ba2\u6237\u7aef\u7684ZXID\uff0c\u56e0\u6b64\u82e5\u53d1\u73b0\u5ba2\u6237\u7aef\u7684ZXID\u5927\u4e8e\u670d\u52a1\u7aefZXID\uff0c\u90a3\u4e48\u670d\u52a1\u7aef\u4e0d\u63a5\u53d7\u8be5\u5ba2\u6237\u7aef\u7684\u4f1a\u8bdd\u521b\u5efa\u8bf7\u6c42\u3002 (6) \u534f\u5546sessionTimeout\u3002\u5728\u5ba2\u6237\u7aef\u5411\u670d\u52a1\u5668\u53d1\u9001\u8d85\u65f6\u65f6\u95f4\u540e\uff0c\u670d\u52a1\u5668\u4f1a\u6839\u636e\u81ea\u5df1\u7684\u8d85\u65f6\u65f6\u95f4\u9650\u5236\u6700\u7ec8\u786e\u5b9a\u8be5\u4f1a\u8bdd\u8d85\u65f6\u65f6\u95f4\uff0c\u8fd9\u4e2a\u8fc7\u7a0b\u5c31\u662fsessionTimeout\u534f\u5546\u8fc7\u7a0b\u3002 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-839","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=\/wp\/v2\/posts\/839","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=839"}],"version-history":[{"count":0,"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=\/wp\/v2\/posts\/839\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=839"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=839"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.jsjs.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=839"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}