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File downloading very slowly  RSS feed

 
naga eswar
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HI all,

Recently we got an issue about file downlload.
We are using below code to fetch the data from backend(DB2) and export to excel.
Before Jan 15 it use to take 2 minutes to download the file (2 MB size).
But now its taking half an hour to download.



We have restarted server, system but still problem exists.
We found that there is no code level or data base level or network level issues.

Now we have to see server level issue.
Can some one let us know the what are the factors which effects the file downloading at server level.
We are using websphere 6.1 ,java1.4


 
J. Kevin Robbins
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The first question to ask in a situation like this is, "What changed?" It's apparent that something changed on January 15. It might have been code, or hardware, or any number of things. When you figure out what changed, you'll be on the trail of finding the root of the problem.

And incidentally, Java 1.4? Seriously?
 
naga eswar
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Thank you very much Kevin for your reply.

Yes we have look in this way also. But no changes had happend.
No hardware change, No production promotion , nothing changes happend.

Yes me too serious about java 1.4.
But its not in my happend. Buisiness wont accepts.
Now we need checkat server(websphere) level what are the factors effects like or anything like JVM size, Connection pool size, etc

 
Ulf Dittmer
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Yes me too serious about java 1.4. But its not in my happend. Buisiness wont accepts.

It's not up to anyone on the business side to make technology decisions. You are the technology professional - you need to escalate this to your manager, both for security reasons (the JVM hasn't been patched for many years) and maintenance reasons (many tools no longer support Java 1.4, making it harder to do the kind of investigation you need to do in order to solve this problem).

As to the underlying problem, have you written a programmatic client that downloads the file (using something like Apache HttpClient) so you can easily test this? If not, that's what I would start with.
 
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