发布文章有时很慢，此时一直处于加载状态

发布文章有时很慢，此时一直处于加载状态。

有时报错

<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">

<html><head>

<title>500 Internal Server Error</title>

</head>

<body>

<h1>Internal Server Error</h1>

<p>The server encountered an internal error or misconfiguration and was unable to complete your request.</p>

<p>Please contact the server administrator at admin@example.com to inform them of the time this error occurred, and the actions you performed just before this error.</p>

<p>More information about this error may be available in the server error log.</p>

<p>Additionally, a 500 Internal Server Error error was encountered while trying to use an ErrorDocument to handle the request.</p>

</body>

</html>

当出现500时，系统日志里出现：获取远程数据失败