Spring boot 线上环境出现1.2G的sun.security.ssl.SSLSocketImpl对象内存泄漏？

Question

将线上环境的堆转储下来，

jmap -dump:live,file=/root/heap_dump_tce1031.hprof 4455

通过ECLIPSE MAT分析如下：

系统为微服务，作为服务端只接受http请求，作为客户端通过resttemplate访问外部https服务。求问这种情况怎么解决。google说可以通过配置解决

SSLSocket.getSession().getSessionContext().setSessionCacheSize(0);

但不知道具体怎么配置

Answer 1

解决了：
SSLContext sslContext = SSLContext.getInstance("SSL"); //SSL(安全套接字层): Secure Sockets Layer、TLS(传输层安全性): Transport Layer Security 。TLS与SSL在传输层与应用层之间对网络连接进行加密

        /**
         * SSLSocketImpl 内存溢出的原因：
         * Bit late reply but this answer is for future visitors to this question. 
         * The reason that you see large volume of SSLSocketImpl in your heap and then which gets garbage collected is because SSLSessionContext supports caching SSL connections, 
         * which can be reused by across distinct TCP connections to reduce handshake overhead when negotiating temporary encryption keys after the actual TCP connection has been established.
         * By default the SSLSessionContext unlimited number of sessions for default time period of 24 hours, 
         * which means that you can end up using lot of heap memory under high traffic. 
         * One way is to set cache size that suits your application needs. Here is an example: sslContext.getServerSessionContext().setSessionCacheSize(1000);
         */
        sslContext.getServerSessionContext().setSessionCacheSize(0); //