每一次新的连接从LDAP连接池返回 [英] Every time new Connection is returned from Ldap connection pool

问题描述

我已经实现LDAP连接池在我的项目，发现一个奇怪的现象，每一次新的连接请求到来时，我配置的LDAP连接池返回新的连接，而不是重新使用现有的连接返回到池中。

I have implemented LDAP connection pooling in my project and noticed a strange behavior that every time new connection request comes, LDAP connection pool I configured is returning new connection instead of re-using existing connection returned to pool.

========以下是LDAP JNDI日志================================= =================

========Below are the LDAP JNDI logs==================================================

00:07:10,824 ERROR [stderr] (IPAdminGlobalDataReloader) Create and use com.sun.jndi.ldap.LdapClient@46728c0f[eun2p3-be.stp-qa.st.com:636]
00:07:12,222 ERROR [stderr] (IPAdminGlobalDataReloader) Release com.sun.jndi.ldap.LdapClient@46728c0f
00:07:46,704 ERROR [stderr] (Thread-65) Expired com.sun.jndi.ldap.LdapClient@674b68bd expired
00:08:46,707 ERROR [stderr] (Thread-65) Expired com.sun.jndi.ldap.LdapClient@46728c0f expired
00:22:26,329 ERROR [stderr] (IPAdminGlobalDataReloader) Create com.sun.jndi.ldap.LdapClient@386bfda[eun2p3-be.stp-qa.st.com:636]
00:22:26,333 ERROR [stderr] (IPAdminGlobalDataReloader) Create and use com.sun.jndi.ldap.LdapClient@6d9f3716[eun2p3-be.stp-qa.st.com:636]
00:22:27,748 ERROR [stderr] (IPAdminGlobalDataReloader) Release com.sun.jndi.ldap.LdapClient@6d9f3716
00:22:46,730 ERROR [stderr] (Thread-65) Expired com.sun.jndi.ldap.LdapClient@386bfda expired
00:23:46,734 ERROR [stderr] (Thread-65) Expired com.sun.jndi.ldap.LdapClient@6d9f3716 expired
00:37:45,242 ERROR [stderr] (IPAdminGlobalDataReloader) Create com.sun.jndi.ldap.LdapClient@4a21c217[eun2p3-be.stp-qa.st.com:636]
00:37:45,244 ERROR [stderr] (IPAdminGlobalDataReloader) Create and use com.sun.jndi.ldap.LdapClient@1b79ab6f[eun2p3-be.stp-qa.st.com:636]
00:37:46,759 ERROR [stderr] (Thread-65) Expired com.sun.jndi.ldap.LdapClient@4a21c217 expired
00:37:46,823 ERROR [stderr] (IPAdminGlobalDataReloader) Release com.sun.jndi.ldap.LdapClient@1b79ab6f
00:39:46,764 ERROR [stderr] (Thread-65) Expired com.sun.jndi.ldap.LdapClient@1b79ab6f expired
00:53:00,864 ERROR [stderr] (IPAdminGlobalDataReloader) Create com.sun.jndi.ldap.LdapClient@668fc34[eun2p3-be.stp-qa.st.com:636]
00:53:00,865 ERROR [stderr] (IPAdminGlobalDataReloader) Create and use com.sun.jndi.ldap.LdapClient@4674a7fb[eun2p3-be.stp-qa.st.com:636]
00:53:02,392 ERROR [stderr] (IPAdminGlobalDataReloader) Release com.sun.jndi.ldap.LdapClient@4674a7fb
00:53:46,787 ERROR [stderr] (Thread-65) Expired com.sun.jndi.ldap.LdapClient@668fc34 expired
00:54:46,791 ERROR [stderr] (Thread-65) Expired com.sun.jndi.ldap.LdapClient@4674a7fb expired

=========以下是我的连接设置====================

=========Below are my connection settings====================

        Hashtable<String, String> env = new Hashtable<String, String>();

        env.put(Context.INITIAL_CONTEXT_FACTORY, "com.sun.jndi.ldap.LdapCtxFactory");
        env.put(Context.PROVIDER_URL, "ldaps://" + server + ":" + serverPort);
        env.put(Context.SECURITY_AUTHENTICATION, "simple");
        env.put(Context.SECURITY_PRINCIPAL, pUserName);
        env.put(Context.SECURITY_CREDENTIALS, pPassword);
        env.put(LdapContext.CONTROL_FACTORIES, "com.sun.jndi.ldap.ControlFactory");
        env.put(Context.SECURITY_PROTOCOL, "ssl");
        env.put("com.sun.jndi.ldap.read.timeout", "300000");

        Security.addProvider(new com.sun.net.ssl.internal.ssl.Provider());

        // load the location of keystore that holds trusted root certificates from web.xml
        ServletContext context = ApplicationServlet.getApplication().getServlet().getServletContext();
        String certificatePath = context.getInitParameter("AD_CERTIFICATE_PATH");

        System.setProperty("javax.net.ssl.trustStore",  certificatePath);
        //          System.setProperty("javax.net.debug", "all");

        // For connection pooling
        env.put("com.sun.jndi.ldap.connect.pool", "true");
        System.setProperty("com.sun.jndi.ldap.connect.pool.protocol", "plain ssl");
        System.setProperty("com.sun.jndi.ldap.connect.pool.maxsize", poolMaxSize);
        System.setProperty("com.sun.jndi.ldap.connect.pool.prefsize", poolPrefSize);
        System.setProperty("com.sun.jndi.ldap.connect.pool.timeout", poolTimeOut);
        System.setProperty("com.sun.jndi.ldap.connect.pool.debug", "fine");

        ctx = new InitialDirContext(env);
        return (DirContext) ctx;

由于在确定哪里是根本原因，为什么创造了重用。每一次新的连接，而不是

Thanks in identifying where is the root cause, why every time new connection is created instead of reused.

推荐答案

您还没有实现任何连接池，您使用的是Sun的破的DirContext 连接池这是气馁。看看Spring LDAP的好的ContextSource 池。它工作得很好。

You have not implemented any connection pooling, you are using the broken DirContext connection pool from Sun. This is discouraged. Take a look at Spring LDAP's ContextSource pool. It works very well.

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