無法在 couchDB 中插入大文檔

Question

我無法在 couchDB 中上傳大型文檔。 我正在使用 Node.js 在 ActiveMQ 的幫助下上傳。 小文件正在上傳。 我嘗試上傳一個 30 MB 的文檔，但失敗並出現以下異常：

(node:28) UnhandledPromiseRejectionWarning: Error: document_too_large
    at Request._callback (/app/node_modules/**/multitenant/node_modules/nano/lib/nano.js:151:15)
    at Request.self.callback (/app/node_modules/request/request.js:185:22)
    at emitTwo (events.js:126:13)
    at Request.emit (events.js:214:7)
    at Request.<anonymous> (/app/node_modules/request/request.js:1154:10)
    at emitOne (events.js:116:13)
    at Request.emit (events.js:211:7)
    at IncomingMessage.<anonymous> (/app/node_modules/request/request.js:1076:12)
    at Object.onceWrapper (events.js:313:30)
    at emitNone (events.js:111:20)
    at IncomingMessage.emit (events.js:208:7)
    at endReadableNT (_stream_readable.js:1064:12)
    at _combinedTickCallback (internal/process/next_tick.js:138:11)
    at process._tickCallback (internal/process/next_tick.js:180:9)
(node:28) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)
(node:28) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

Answer 1

答案就在錯誤堆棧的第一行

（節點：28）UnhandledPromiseRejectionWarning：錯誤：document_too_large

couchDB 的默認最大文檔大小為 8000000 字節，遠低於 30mb。

FWIW 30mb 是很多數據，你確定這些數據不應該是附件嗎？ 請參閱此相關 SO Q/A 。