我正在学习JQuery Get方法.我启动了一个Python HTTP服务器:
(只需键入命令" Python -m SimpleHTTPServer ").
只需在我的网络浏览器上访问"http:// localhost:80"即可测试此网络服务器.但是,当我写这个非常简单的JavaScript来访问我的网络服务器.我收到一条错误消息:
"代码501,消息不支持的方法('OPTIONS')"
我使用jquery.xdomainajax.js库,假设跨域请求JQuery.
这是我的javascript代码:
<html>
<head>
<script src="jquery.min.js"></script>
<script src="jquery.xdomainajax.js"></script>
<script type="text/javascript">
$(document).ready(function(){
u = 'http://localhost:80';
jQuery.get(u, function(res){
$("#data").html(res.responseText)
});
});
</script>
</head>
<body>
<p id="data"></p>
</body>
</html>
实际上,如果我将您更改为任何其他网址,例如"http://www.google.ca".它运作得很好.但我不知道为什么它不适用于基本的Python HTTP服务器.谁能帮我？
我正在为我的Solr应用程序进行负载测试.该指数拥有超过2亿份文件.我使用默认的Jetty服务器并将最大JVM内存设置为4GB.为了测试我的应用程序,我编写了5000个文本查询并逐个发送给Solr.但是,在大约110个查询之后,Jetty容器抛出异常.
为什么会这样？我该如何解决？
SEVERE: java.lang.OutOfMemoryError: GC overhead limit exceeded
at org.apache.lucene.util.AttributeImpl.clone(AttributeImpl.java:196)
at org.apache.lucene.util.AttributeSource$State.clone(AttributeSource.java:116)
at org.apache.lucene.util.AttributeSource$State.clone(AttributeSource.java:119)
at org.apache.lucene.util.AttributeSource.captureState(AttributeSource.java:349)
at org.apache.solr.highlight.TokenOrderingFilter.incrementToken(DefaultSolrHighlighter.java:595)
at org.apache.lucene.search.highlight.OffsetLimitTokenFilter.incrementToken(OffsetLimitTokenFilter.java:43)
at org.apache.lucene.analysis.CachingTokenFilter.fillCache(CachingTokenFilter.java:78)
at org.apache.lucene.analysis.CachingTokenFilter.incrementToken(CachingTokenFilter.java:50)
at org.apache.lucene.search.highlight.Highlighter.getBestTextFragments(Highlighter.java:225)
at org.apache.solr.highlight.DefaultSolrHighlighter.doHighlightingByHighlighter(DefaultSolrHighlighter.java:468)
at org.apache.solr.highlight.DefaultSolrHighlighter.doHighlighting(DefaultSolrHighlighter.java:379)
at org.apache.solr.handler.component.HighlightComponent.process(HighlightComponent.java:116)
at org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:194)
at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:129)
at org.apache.solr.core.SolrCore.execute(SolrCore.java:1368)
at org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:356)
at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:252)
at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
at org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
at org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)