connection

Please see the attached images, Please help me to understand the relationship between thread pool(max and min thread pool size), acceptor threads and its max connection count and HTTP max connection count. Thread Pool : HTTP: Transport TCP: First I'll give you some official documentation Thread Pool The thread pool is the max number of simultaneous requests the server can handle. The server has a queue of connections awaiting to be processed by a thread. Keep in mind that a thread will be a long the request life. That is, not only when reading HTTP request from socket, or when writing HTTP

I'm running a Spring/Hibernate connecting to MySQL setup using c3p0 as my connection pool. For some bizarre reason it runs out of connections when the system is under load (of course). The site was pretty stable until we started hitting a new level of traffic (over a hundred concurrent users). At that point the DB would melt down (peg the CPU). My first action was in the application to improve performance through extensive caching and optimization of queries etc. Now it will just run out of connections intermittently. It doesn't even seem that dependent on load. More on time which makes me

I have tried following this guide on Cordova docs, but it doesn't seem to work. Here is my code: I have added <plugin name="NetworkStatus" value="CDVConnection" /> to config.xml . and this script to my index.html : <script type="text/javascript"> document.addEventListener("deviceready", onDeviceReady, false); // device APIs are available // function onDeviceReady() { alert("1"); // runs this alert checkConnection(); } function checkConnection() { var networkState = Connection.CELL; alert("2"); // doesn't run this var states = {}; states[Connection.UNKNOWN] = 'Unknown connection'; states

I'm a bit confused by mysql concepts: session vs connection. When we are talking about connecting to mysql. We use connection terminology, as well as connection pool and etc. However let's go to mysql online doc: http://dev.mysql.com/doc/refman/4.1/en/server-system-variables.html . It talks about session variables. They are quite similar. How to distinguish them? Thanks in advance. A session is just a result of a successful connection . Any MySQL client requires some connection settings to establish a connection and after the connection has been established it acquires a connection id (thread

My Samsung phone was not recognized by Android Studio on windows 7. I repaired it by installing the Samung Driver here: http://developer.samsung.com/technical-doc/view.do?v=T000000117 I tested with my Galaxy S2 and the Samsung S7560 and it works now Here are few steps if your android phone create problem next time Make sure developer mode is enable Make sure Android studio is up to date Make sure Android Phone is also up to date I had the same issue when connecting a SM-T113 to a Windows 7 PC. The problem was solved by installing Smart Switch. Galaxy J7(2016) same problem solved when i go to

It seems that the ResultSet will be automatically closed when I close the Connection . But I want to return the ResultSet and use it in another method, then I don't know where to close Connection and PreparedStatement . public ResultSet executeQuery(String sql, String[] getValue) { Connection conn = null; PreparedStatement pstmt = null; ResultSet rs = null; try { conn = getConn(); pstmt = conn.prepareStatement(sql); if (getValue != null) { for (int i = 0; i < getValue.length; i++) { pstmt.setString(i + 1, getValue[i]); } } rs = pstmt.executeQuery(); } catch (Exception e) { e.printStackTrace();