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当用户数量增加时，Lucene Indexing中的打开文件太多

[英]Too many open files in Lucene Indexing when number of users increase

原文 2011-11-22 09:19:38 6 1 java/ lucene

I have been using Lucene Indexing and search technique for my web application. 我一直在为我的Web应用程序使用Lucene Indexing和搜索技术。 Initially I faced the "Too many Open files problem", after research I fixed it by using a common IndexSearcher for single user. 最初我遇到了“太多的打开文件问题”，经过研究我通过使用一个普通的IndexSearcher为单个用户修复它。 Then, when I tested the application with a greater number of concurrent users, it again started to bring "Too many Open files problem". 然后，当我使用更多并发用户测试应用程序时，它再次开始带来“太多打开文件问题”。

I am keeping the IndexSearcher Object in the session of particular user, which is always keeping a few files open(which they are currently using). 我将IndexSearcher对象保留在特定用户的会话中，这始终保持一些文件打开（他们当前正在使用）。 Could any one please help to overcome this issue even if there is any number of users? 即使有任何数量的用户，任何人都可以帮助解决这个问题吗？

Let me know if I am not clear anywhere in the above explanation. 如果我在上述说明中的任何地方都不清楚，请告诉我。

1 个解决方案

Lucene's FAQ has a nice entry about it . Lucene的FAQ有一个很好的条目。

In a nutshell: 简而言之：

Check that all your Lucene IndexReader, IndexWriter, and IndexSearcher are correctly closed 检查所有Lucene IndexReader，IndexWriter和IndexSearcher是否已正确关闭
Try to use compound files, that limits the number of files created 尝试使用复合文件，这会限制创建的文件数
Increase the limit of opened file handles on your operating system 增加操作系统上打开的文件句柄的限制

I had similar problem with Lucene a while ago, and when you have a lot of concurrent users, this limit can easily be reached. 我刚才和Lucene有类似的问题，当你有很多并发用户时，很容易达到这个限制。 Increasing the file handles limit worked perfectly fine. 增加文件句柄限制工作完全正常。