Try pinging the server with Microsoft SQL Server from the server running tomcat. You might use a traceroute to see where the network bottleneck may exist.
What are your ping times. Are you experiencing network latency? Are you going through a Firewall? I am using JTDS and I have not experienced any problems with it. Randall -----Original Message----- From: Charles P. Killmer [mailto:[EMAIL PROTECTED] Sent: Wednesday, January 05, 2005 11:57 AM To: Tomcat Users List Subject: RE: Speed issues with SQL Server 2000 and JTDS I tried setting that parameter to false and still the same slow issue. The fields in the database are all char or varchar. No unicode. Charles -----Original Message----- From: Victor Cardona [mailto:[EMAIL PROTECTED] Sent: Wednesday, January 05, 2005 11:44 AM To: Tomcat Users List Subject: Re: Speed issues with SQL Server 2000 and JTDS Charles P. Killmer wrote: >Thanks. I had already done this but maybe not communicated them as >concisely. > >Thanks >Charles > >-----Original Message----- >From: Parsons Technical Services >[mailto:[EMAIL PROTECTED] > >Sent: Tuesday, January 04, 2005 6:23 PM >To: Tomcat Users List >Subject: Re: Speed issues with SQL Server 2000 and JTDS > >Trying a few test should help you narrow things down a bit. > >1. Run without DB connection. (Done runs fast) > >2. Run with a DB connect but no query. (Done runs slow) > >3. Run with a simple query and do nothing with it. > >4. Run with a simple query and post results in page. Only move forward >through result set. > >5. Run with a simple query and post results in page. Move around in the >result set (Only if you do this in your page). > >At some point in these test you should see a dramatic jump in the >response time. If it is a steady climb, then you may have multiple >issues. > >Report back what you find and we'll make suggestions from there. > >Doug > > >----- Original Message ----- >From: "Charles P. Killmer" <[EMAIL PROTECTED]> >To: "Tomcat Users List" <tomcat-user@jakarta.apache.org> >Sent: Tuesday, January 04, 2005 11:23 AM >Subject: RE: Speed issues with SQL Server 2000 and JTDS > > >Could this speed issue be caused by a poor setup? When I remove the >database connection from my code, the pages run fast. Though I >obviously need the database portion of the code in there. > >Thanks >Charles > > >-----Original Message----- >From: David Boyer [mailto:[EMAIL PROTECTED] >Sent: Monday, January 03, 2005 9:05 AM >To: tomcat-user@jakarta.apache.org; Charles P. Killmer >Subject: RE: Speed issues with SQL Server 2000 and JTDS > >You could try using something like jProfiler to see where the >bottleneck is. > >I don't see anything unusual in your code example, although it looks >like the only thing it does is create the connection. I use jTDS and it >works fine without doing anything exceptional. > > > > > >>>>[EMAIL PROTECTED] 01/03 8:55 am >>> >>>> >>>> > >This is some representative code that is being very slow. > > >import java.sql.*; > > >public class SomeClass { > > public Connection conn; > >public int ID; > >public String Name; > >public String Address; > >public String City; > >public String OtherStuff; > > > public SomeClass() throws Exception { > > try { > > Class.forName(net.sourceforge.jtds.jdbc.Driver); > > } catch (ClassNotFoundException ex) { > > } > > try { > > conn = > >DriverManager.getConnection(jdbc:jtds:sqlserver://111.222.333.444:1433/ > >someDB;user=someuser;password=somepassword); > > } catch (Exception e) { > > throw e; > > } > > } > > > public int Audit() throws Exception { > > return 5; > > } > > > public ResultSet GetData() throws Exception { > > ResultSet rs = null; > > return rs; > > } > > > public int DeleteSomething() throws Exception { > > return 2; > > } > >} > > >I don't have anything special in any XML files. I will try to make my > >code work like yours is. But if someone has an idea why the way I have > >it written is slow, I would love to hear it. > > >Thank You > >Charles > > >-----Original Message----- > >From: Randall Svancara [mailto:[EMAIL PROTECTED] > >Sent: Monday, January 03, 2005 8:20 AM > >To: Tomcat Users List > >Subject: RE: Speed issues with SQL Server 2000 and JTDS > > >I have been using JTDS with SQL Server 2000 in conjunction with Tomcat > >without any problems. Perhaps if you post some your database >connection > > >code, someone could provide you with assistance. You might also try > >posting to the JTDS Mailing list. Are you using Database Connection > >Pooling (DBCP)?? > > >I am including an example the code I use to access a stored procedure >on > > >SQL Server 2000 using DBCP. > > >/* Here are the things I import */ > >import java.sql.Connection; > >import java.sql.Statement; > >import java.sql.ResultSet; > >import java.sql.SQLException; > >import javax.naming.*; > >import javax.sql.*; > > > >Public class SomeClass{ > > > >* A public class that returns an Applicant object > >* @return the applicant as applicant > >*/ > >public Applicant SomeApplicantMethod(){ > > Applicant app = new Applicant(); > > Connection conn = null; > > Statement stmt = null; > > ResultSet rst = null; > > > > try{ > > Context ctx = new InitialContext(); /* Declare initial > >context */ > > if(ctx == null ){ > > logger.error(Error creating new context for some > >reason); > > throw new Exception(No context); > > } > > /* Throw an exception if it is null */ > > DataSource ds = > >(DataSource)ctx.lookup(java:comp/env/jdbc/summitexec); > > > > conn = ds.getConnection(); > > > > if(conn != null) { > > > > stmt = conn.createStatement(); > > > > rst = stmt.executeQuery(sp_SelectApplicant + > >canidateid); > > > > while(rst.next()){ > > >// Add result set to applicant object, > >NOT SHOWN HERE!!! > > > } > > > > > //Make sure you close everything, else you end up > >with object leaks.... > > if(stmt != null){ > > stmt.close(); > > } > > > > if(rst != null){ > > rst.close(); > > } > > > > if(conn != null){ > > conn.close(); > > } > > } > > }catch(Exception E){ > > logger.error(EXCEPTION ERROR Getting Applicant: + > >E.toString()); > > } finally{ > > > > // Close out of any open connections if they exist, this is > >important > > // in order to release resources for connection pooling > > try{ > > if(stmt != null){ > > stmt.close(); > > stmt=null; > > } > > }catch(SQLException E){} > > > > try{ > > if(rst != null) { > > rst.close(); > > rst = null; > > } > > }catch(SQLException E){} > > > > try{ > > if(conn != null) { > > conn.close(); > > conn = null; > > } > > }catch(SQLException E){} > > } > > >} > >} > > > >This is the quirky part about Tomcat, in version 5.0 or ealier, I have > >to use this xml code in my webapp context file for DBCP. > > ><Resource name=jdbc/summitexec auth=Container > >type=javax.sql.DataSource /> > ><ResourceParams name=jdbc/summitexec> > > <parameter> > > <name>factory</name> > > ><value>org.apache.commons.dbcp.BasicDataSourceFactory</value> > > </parameter> > ><parameter> > ><name>url</name> > > ><value>jdbc:jtds:sqlserver://192.168.0.2:1433/summitexec;User=someuser; >P > > >assword=somepassword</value> > ></parameter> > ><parameter> > ><name>driverClassName</name> > ><value>net.sourceforge.jtds.jdbc.Driver</value> > ></parameter> > > <parameter> > ><name>user</name> > ><value>someuser</value> > ></parameter> > ><parameter> > ><name>password</name> > ><value>somepassword</value> > ></parameter> > ></ResourceParams> > > >In 5.5 I have to use this xml for DBCP. If someone could provide > >details why this is, I would appreciate it. > > > <Resource name=jdbc/summitexec > > auth=Container > > type=javax.sql.DataSource > > driverClassName=net.sourceforge.jtds.jdbc.Driver > > >url=jdbc:jtds:sqlserver://192.168.0.3:1433/summitexec > > username=someuser > > password=somepassword > > maxActive=20 > > maxIdle=10 > > maxWait=10/> > > >Thanks, > > >Randall > > >-----Original Message----- > >From: Charles P. Killmer [mailto:[EMAIL PROTECTED] > >Sent: Sunday, January 02, 2005 2:13 PM > >To: Tomcat Users List > >Subject: Speed issues with SQL Server 2000 and JTDS > > >I bought the Core Servlets and Java Server Pages and read it over the > >weekend. Happy New Year to me. I did get out to a few parties though. > >;) I am having trouble getting JTDS to return results quickly. > > >Has anyone got any example code for how to properly query a SQL Server > >2000 database? The code I write needs to work with both SQL Server >2000 > > >and SQL Server 7. In creating the connection, I am specifying > >TYPE_SCROLL_INSENSITIVE and TYPE_CONCUR_READ_ONLY. I tried not > >specifying anything and got errors about not being able to scroll the > >results. Is the only solution to this, use FORWARD_ONLY and buffer the > >contents myself? I hoping there is a better way. > > >Thank you > >Charles Killmer > > > >--------------------------------------------------------------------- > >To unsubscribe, e-mail: [EMAIL PROTECTED] > >For additional commands, e-mail: [EMAIL PROTECTED] > > > >--------------------------------------------------------------------- > >To unsubscribe, e-mail: [EMAIL PROTECTED] > >For additional commands, e-mail: [EMAIL PROTECTED] > > > >--------------------------------------------------------------------- >To unsubscribe, e-mail: [EMAIL PROTECTED] >For additional commands, e-mail: [EMAIL PROTECTED] > > > > > >--------------------------------------------------------------------- >To unsubscribe, e-mail: [EMAIL PROTECTED] >For additional commands, e-mail: [EMAIL PROTECTED] > > >--------------------------------------------------------------------- >To unsubscribe, e-mail: [EMAIL PROTECTED] >For additional commands, e-mail: [EMAIL PROTECTED] > > >. > > > How are your tables set up? Do they use CHAR/VARCHAR or NCHAR/NVARCHAR? You might need to change the setting of the "sendStringParametersAsUnicode" attribute. See http://jtds.sourceforge.net/faq.html for more details. Victor --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
