无法在服务器上创建目录。许可问题? [英] Cannot Create Directory On Server. Permission Issue?
问题描述
我正在使用lucene存储一些数据的索引。以下代码检查/ home / username中目录是否存在,如果找不到,则从头开始构建索引,创建目录等。
I am using lucene to store an index of some data. The following code checks for the existance of a directory in /home/username and if its not found, builds the index from scratch creating the directories etc.
public static final String INDEX_PATH = "/home/username/appname/lucene/index";
private void buildCompleteIndex(int organizationId) {
synchronized(mutex) {
File path = new File(INDEX_PATH + "/" + String.valueOf(organizationId));
if(!path.exists()) {
try {
Utils.deleteDirectory(path);
} catch (IOException e) {
throw new LuceneIndexException("Error rebuilding index directory.", e);
}
path.mkdirs();
}
List<Contact> contactList = contactDAO.findAll(organizationId, true);
if(contactList != null) {
for(Contact contact : contactList) {
add(contact);
}
}
}
}
//Getters
private IndexReader getIndexReader(boolean readOnly, int organizationId) {
try {
if(directory == null) {
File path = getFile(organizationId);
directory = FSDirectory.open(path);
if(!IndexReader.indexExists(directory)) {
buildCompleteIndex(organizationId);
}
}
return IndexReader.open(directory, readOnly);
} catch (CorruptIndexException e) {
buildCompleteIndex(organizationId);
} catch (IOException e) {
buildCompleteIndex(organizationId);
}
return null;
}
当我从虚拟tomcat实例部署时,这一切都在开发中很有用在Eclipse中,但在生产服务器上失败了。
This all works great in development when i'm deploying from a virtual tomcat instance inside of eclipse, but fails on the production server.
为什么我能够以开发模式写入目录,但是当应用程序部署在服务器上时却没有?我没有权限创建目录吗?我正在使用Ubuntu Server 12.10和Tomcat7。
Why would I be able to write to the directory in dev mode, but not when the app is deployed on the server? Do I not have permission to create directories? I'm using Ubuntu Server 12.10 and Tomcat7.
如何在服务器上创建正确的文件夹和文件?
How can I get this creating the proper folders and files on the server?
是否有特定的文件夹我应该允许我的应用程序在服务器上写入?它总是与我的开发盒上的home / user文件夹一起使用,但是在服务器上可能有所不同,因为用户在应用程序运行时实际上没有登录?
Is there a specific folder I am supposed to allow my applications to write to on the server? It always worked with the home/user folder on my dev box, but maybe thats different on the server because the user isn't actually logged in when the application is running?
更新:
我检查了当前设置为700的文件夹的权限。这可能是问题吗?在生产服务器上将此文件夹设置为666或777是否安全?即使未登录/ home / username的用户名,此文件夹是否可写?我知道700意味着所有者拥有完全访问权限,但这包括tomcat应用程序吗?
UPDATE: I checked the permissions of the folder which are currently set to 700. Could that be the problem? Is it safe to set this folder to 666 or 777 on a production server? Is this folder writable even if the username of /home/username is not logged in? I know that 700 means owner has full access, but does that include the tomcat application?
更新:我试图更改/ home /用户名对755的权限和相同的问题仍然存在。
UPDATE: I attempted to change the /home/username's permissions to 755 and the same issue persisted.
显示尝试创建文件夹时生成的错误的堆栈跟踪。
The stacktrace showing the error generated when trying to create the folder.
java.io.IOException: Cannot create directory: /home/ryandlf/thinkbooked.com/lucene/contacts/1
at org.apache.lucene.store.NativeFSLock.obtain(NativeFSLockFactory.java:171)
at org.apache.lucene.store.Lock.obtain(Lock.java:72)
at org.apache.lucene.index.IndexWriter.<init>(IndexWriter.java:1108)
at com.thinkbooked.search.LuceneContactSearchEngine.getIndexWriter(LuceneContactSearchEngine.java:321)
at com.thinkbooked.search.LuceneContactSearchEngine.add(LuceneContactSearchEngine.java:68)
at com.thinkbooked.search.LuceneContactSearchEngine.buildCompleteIndex(LuceneContactSearchEngine.java:285)
at com.thinkbooked.search.LuceneContactSearchEngine.getIndexReader(LuceneContactSearchEngine.java:303)
at com.thinkbooked.search.LuceneContactSearchEngine.find(LuceneContactSearchEngine.java:150)
at com.thinkbooked.search.LuceneContactSearchEngine.find(LuceneContactSearchEngine.java:145)
at com.thinkbooked.handlers.ClientListSearchHandler.init(ClientListSearchHandler.java:49)
at com.thinkbooked.event.EventListener.doPost(EventListener.java:59)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:641)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:472)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:168)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:929)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1002)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:585)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:722)
推荐答案
根据我在原始问题中发布的问题,在Ubuntu的标准打包版本的tomcat上收到的答案, tomcat在不同的用户名下运行。要找到它,您可以从命令行使用此命令:
According to an answer I received on the question posted in the original question, on Ubuntu's standard packaged version of tomcat, tomcat runs under a different username. To find this you can use this command from the command line:
ps aux | grep catalina
在我的情况下,它告诉我tomcat使用的用户名是tomcat7。
In my case it told me the username tomcat was using is tomcat7.
要编辑默认的tomcat用户名,请在以下位置编辑配置文件:
To edit the default tomcat username, edit the config file in:
/etc/default/tomcat7
第一行应该列出默认的tomcat用户名,然后是组ID在我的情况下是相同的。
The first line should list the default tomcat username and next, the group ID which in my case is the same.
要将文件夹的所有权更改为tomcat以便它可以写入目录,请使用chmod命令。
To change ownership of a folder to tomcat so it can write to the directory, use the chmod command.
sudo chown -R username:group directory
-R表示所有子文件夹和文件也将拥有新的所有权。如果你不想要,请省略。
The -R means all subfolders and files will also have new ownership. Omit this if you don't want that.
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