Subject | Re: [Firebird-Java] Can't connect to DB |
---|---|
Author | William L. Thomson Jr. |
Post date | 2002-07-16T19:41:34Z |
On Tue, 2002-07-16 at 11:31, Rick Fincher wrote:
upgrade to it. As I do run Tomcat on a production server, as well as my
development server.
I did get some funkiness one day, but it has not occurred again.
unless you are the outside world getting in, that's the only direction
that is firewalled. All my machines have access to each other via a Lan.
give it time to. Once I was able to open the port with telnet, that was
good enough for me.
Yes, I am the admin, and everything else. So no firewall.
domain.
added to Firebird's driver.
Now which is a better way to go, Tomcat pooling, or the drivers own
internal pool.
I most use pools in web apps, that will run under Tomcat.
Sincerely,
William L. Thomson Jr.
Support Group
Obsidian-Studios Inc.
439 Amber Way
Petaluma, Ca. 94952
Phone 707.766.9509
Fax 707.766.8989
http://www.obsidian-studios.com
> Hi William,I am waiting for Tomcat 4.1.x to make it past beta stages before I
>
> I'm using Tomcat too. 4.1.3 or 4.1.7 is best for JNDI stuff and
> connection pooling. evidently some people have had trouble with 4.1.7
> but fixed it by putting the 4.1.3 DBCP jars into 4.1.7.
>
> I've had good luck with 4.1.3 but 4.1.7 is still a little flakey. If
> I use Java in the server mode to run Tomcat, I have problems, but Java
> in the client (default) mode seems to work OK (on a sun server). This
> is probably a Java problem, not Tomcat.
>
> The manager webapp is very handy in 4.1.7, though.
upgrade to it. As I do run Tomcat on a production server, as well as my
development server.
> I presume you are on the Tomcat mailing lists, if not i can send youYes, except I am all Linux, from development to deployment.
> the address for that. It's VERY active and Tomcat is changing
> rapidly, so it helps a lot.
>
> As for your problems with FB, it sounds like we have a similar setup.
> I do the webapps on a Win 2000 box and deploy on a Sun server.
> I don't run FB on the Windows box at all, it isn't needed to accessDidn't think so, but at this point I am looking at everything.
> the server.
> One thing you can try it to Telnet into the port on your FB server toYes I did and I can connect.
> see if you can get to it from the box that can't connect.
> You can do the same for Interserver's port 3060 that Interclient uses.InterClient is what I have been using, and it still works fine. Although
I did get some funkiness one day, but it has not occurred again.
> There may be a firewall or proxy problem.Nope, the machines are all on a Lan behind two consecutive firewalls. So
unless you are the outside world getting in, that's the only direction
that is firewalled. All my machines have access to each other via a Lan.
> If you connect to the port and try to type anything it will kick youI saw some funky stuff, but it did not kick me off. Although I did not
> off because it is looking for specific stuff from the driver, but at
> least you'll know the port is up and accepting requests.
give it time to. Once I was able to open the port with telnet, that was
good enough for me.
> I don't know if you are doing the system admin on your servers but youwork.
> may need to explicitly enable port 3050 through a firewall for it to >
Yes, I am the admin, and everything else. So no firewall.
> Interclient may work because it is using port 3060 to talk to 3050 onYes, this is true, but 3050 is accessible to all in the Lan and in the
> the local host (the server), which may work even if 3050 isn't
> accessible with other systems.
domain.
> If you do decide to use the driver's built in pooling you can do soThanks for the code below. I like allot, and am very happy pooling was
>with code like the following replacing your
added to Firebird's driver.
Now which is a better way to go, Tomcat pooling, or the drivers own
internal pool.
I most use pools in web apps, that will run under Tomcat.
> "Class.forName.("org.firebirdsql.jdbc.FBDriver")" code.--
>
> import javax.resource.ResourceException;
> static protected org.firebirdsql.jdbc.FBWrappingDataSource fbwds;
>
> try
>
> {
>
> fbwds = new org.firebirdsql.jdbc.FBWrappingDataSource();
>
> }
>
> catch (ResourceException e)
>
> {
>
> System.out.println("Could Not create
> org.firebirdsql.jdbc.FBWrappingDataSource, error: "+e+"\n");
>
> return null;
>
> }
>
>
> fbwds.setDatabaseName(connectionURL); // in the format
> "host.domain.com/3050:/dir/subdir/dbName.gdb"
>
> fbwds.setUser(userName);
>
> fbwds.setPassword(password);
>
> fbwds.setIdleTimeoutMinutes(30);
>
> fbwds.setPooling(true);
>
> fbwds.setMinSize(5);
>
> fbwds.setMaxSize(20);
>
> }
>
> try
>
> {
>
> c = fbwds.getConnection();
>
> }
>
> catch (SQLException e)
>
> {
>
> System.out.println("getting new fbwds connection failed! Error:
> "+e+"\n");
>
> }
>
> Hope this helps.
>
>
>
> Rick
>
>
>
Sincerely,
William L. Thomson Jr.
Support Group
Obsidian-Studios Inc.
439 Amber Way
Petaluma, Ca. 94952
Phone 707.766.9509
Fax 707.766.8989
http://www.obsidian-studios.com