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9.6

Timeout when executing JSP application (apache timeout)

Asked by rnicholus in Java Server Pages (JSP), Java Programming Language

I have a JSP application where in one of the Java class I do a query (see code snippet).
But the problem is: depending on the parameter in the PreparedStatement, the query can take various amount of time to execute.
For some parameters, I got timeout exception (see code snippet) that is shown as "Internal Server Error" in the web browser.

I'm wondering why since the same query I can execute in the query browser ok (even though it still takes some time to load).

1. First of all, does anyone what is going on actually :) ? Is it just simply because it's taking too long?
2. What's the best practice to handle this case?
3. Can something be set in the Apache side? (Set longer timeout? How?)
4. Can something be set in the Java code side? What kinds of things need to be done?

Let me know your suggestions how to handle this timeout issue. What I want is a good mechanism so that this can be handle gracefully. 
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pstmt.setInt(1, pairing);
pstmt.setString(2, endTimeForQuery);
pstmt.setString(3, startTimeForQuery);		
pstmt.execute();
rs = pstmt.getResultSet();
 
..........
..........
----------------------------------------------
[Fri Jul 24 10:43:08 2009] [error] (70007)The timeout specified has expired: ajp_ilink_receive() can't receive header
[Fri Jul 24 10:43:08 2009] [error] ajp_read_header: ajp_ilink_receive failed
[Fri Jul 24 10:43:08 2009] [error] (120006)APR does not understand this error code: proxy: read response failed from 127.0.0.1:8009 (localhost)
----------------------------------------------
[+][-]09/03/09 06:49 PM, ID: 25256415Accepted Solution

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About this solution

Zones: Java Server Pages (JSP), Java Programming Language
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Solution Provided By: MuraliKanth
Participating Experts: 2
Solution Grade: A
 
[+][-]09/04/09 02:23 AM, ID: 25257872Assisted Solution

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