错误：连接ENFILE 127.0.0.1:5984 – 本地（undefined：undefined）
我不断收到这个pouchDB错误，我不知道这是什么。
Error: connect ENFILE 127.0.0.1:5984 - Local (undefined:undefined) at onError (/Users/thomas/Desktop/rain/node_modules/pouchdb/lib/deps/ajax/ajaxCore.js:53:18) at Request._callback (/Users/thomas/Desktop/rain/node_modules/pouchdb/lib/deps/ajax/ajaxCore.js:103:14) at self.callback (/Users/thomas/Desktop/rain/node_modules/request/request.js:198:22) at emitOne (events.js:77:13) at Request.emit (events.js:169:7) at Request.onRequestError (/Users/thomas/Desktop/rain/node_modules/request/request.js:867:8) at emitOne (events.js:77:13) at ClientRequest.emit (events.js:169:7) at Socket.socketErrorListener (_http_client.js:265:9) at emitOne (events.js:77:13) at Socket.emit (events.js:169:7) at emitErrorNT (net.js:1253:8) at doNTCallback2 (node.js:450:9) at process._tickCallback (node.js:364:17) ENFILE整个系统中有太多不同的文件开口。 请注意，任何数量的链接通道只能算作一个文件打开。 请参阅链接频道。 GNU / Hurd系统中不会出现这个错误。
使用这个promiseDebouncer我包装了调用，并扼杀它。
function promiseDebounce(fn, delay, count) { var working = 0, queue = []; function work() { if ((queue.length === 0) || (working === count)) return; working++; Promise.delay(delay).tap(function () { working--; }).then(work); var next = queue.shift(); next[2](fn.apply(next[0], next[1])); } return function debounced() { var args = arguments; return new Promise(function(resolve){ queue.push([this, args, resolve]); if (working < count) work(); }.bind(this)); } } let debouncePut = promiseDebounce(db.put, 1000, 100).bind(db)