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POPerformance tips/hints for .NET webservice providing info from sql server
 

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  1. POPerformance tips/hints for .NET webservice providing info from sql server
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    <p>I have a rather simple web-service which exposes data from sql server. It will be used to synchronize data between 2 different databases (SQL Server and Lotus Notes). We're in the stage of testing the web-service and poll it with 20 req./min., the first 2 minutes it goes OK, but after the second, we're getting an exception, obviously the connection (to the database) can't be opened(timeout).</p> <p>Do you have any tips/recommendations on what to do or where to look at? The web-service has been programmed using C#/.NET, the connection to the db is opened during construction of (web-service) object and closed when the object is disposed. </p> <p>I've considered using global.asax to "share" the connection but after some googling I found out most people find that a bad idea and I'm looking for a different solution.</p> <p>ps. the service is pooled in a synchronous way, no 2 requests exist at the same time</p> <p>-edit- (after first 2 anwsers about pooling) This is current code:</p> <pre><code>public class DataService : System.Web.Services.WebService { private SqlConnection conn = new SqlConnection("Data Source=ip;database=database;uid=user;pwd=secret;"); public DataService () { try { conn.Open(); } catch (Exception dbconn) { throw new SoapException("Couldn't open connection to database:" + dbconn.Message + " More info at: " + dbconn.HelpLink, errorCode); } //Uncomment the following line if using designed components //InitializeComponent(); } ~DataService() { conn.Close(); } [WebMethod(Description="Gets all Person changes(from last week)")] public Person[] GetPerson() { Person[] Personen = null; SqlCommand sqlcmd = conn.CreateCommand(); sqlcmd.CommandText = "SELECT * FROM Person"; SqlDataReader Rows = sqlcmd.ExecuteReader(); while (Rows.Read()) { //doSomething } Rows.Close(); return Personen; } </code></pre> <p>}</p>
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