PostgreSQL JDBC - JDBC driver bug?

Author

JDBC driver bug?

yoursoft@freemail.hu

2005-09-22, 9:24 am

Dear Developers,

First, sorry my bad English.
My platform:
- postgresql 8.0.3 and 8.0.0 with SuSE Linux.
- java 1.5 update 4 (problem with it), java 1.4.2 (working without problem)
- jdbc 3 driver 312 (latest stable)

I found the following problem:
If I connect to the database from local host with java 1.5, or with java
1.4.2 from other box everything is good (connection time <1 sec).
When I connect to the database on other box, there is slow connection
(5-6 sec).

If you have any other question, please mail it.

Regards,
Ferenc

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Csaba Nagy

2005-09-22, 9:24 am

This kind of problems usually are caused by your network/networking code
and not postgres itself. I bet there's some DNS resolution overhead and
the different java versions you're using have different DNS
resolution/caching policies. I would take a look at DNS as a first
suspect.

HTH,
Csaba.

On Thu, 2005-09-22 at 15:25, yoursoft@freemail.hu wrote:
> Dear Developers,
>
> First, sorry my bad English.
> My platform:
> - postgresql 8.0.3 and 8.0.0 with SuSE Linux.
> - java 1.5 update 4 (problem with it), java 1.4.2 (working without problem)
> - jdbc 3 driver 312 (latest stable)
>
> I found the following problem:
> If I connect to the database from local host with java 1.5, or with java
> 1.4.2 from other box everything is good (connection time <1 sec).
> When I connect to the database on other box, there is slow connection
> (5-6 sec).
>
> If you have any other question, please mail it.
>
> Regards,
> Ferenc
>
> ---------------------------(end of broadcast)---------------------------
> TIP 3: Have you checked our extensive FAQ?
>
> http://www.postgresql.org/docs/faq

---------------------------(end of broadcast)---------------------------
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