Solved

Java virtual machine monitoring tools

Posted on 2016-08-29
3
45 Views
Last Modified: 2016-09-12
Hello Experts,

I am looking for a JVM tool that identifies hung SQL queries. I am using BOE4.1 SP6p2 with SQL2012 DB and need to monitor Jobserverchild processes when a thread is hung. This tool will help identify the exact SQL statement that is causing the process to hang.

Thanks!
PamC
0
Comment
Question by:Member_2_7964761
  • 2
3 Comments
 
LVL 26

Expert Comment

by:dpearson
ID: 41775755
When you say "hang" do you mean "take a long time?"  Or do you mean the query fails and that causes an error in the Java webapp so it hangs?

If we're just talking slow queries, generally that's much easier to resolve from the database side - because you can just look at the currently executing queries and you'll see the long running ones - esp if they are still running.

Is there a particular reason why you're trying to solve this from the JVM side?

Doug
0
 

Author Comment

by:Member_2_7964761
ID: 41794842
Slow queries. The reports can run at any time(2am etc) so I may not catch the report in action.  

I'm a BOE Admin and trying to find the best tool to find the long executing queries and report it back to the report writer to fix.
0
 
LVL 26

Accepted Solution

by:
dpearson earned 500 total points
ID: 41794864
OK then I'd suggest looking into those queries from the database side.  I don't specifically know how SQL server logs those, but seems like the profiler would be a place to start:
https://technet.microsoft.com/en-us/library/ms187929(v=sql.105).aspx

Trying to find the problem query within the Java codebase will just be much harder, because the slowness will be within the database.  All you could see in the JVM is something like "thread-123" is waiting a long time to complete - which isn't terribly helpful.

Start from the database itself and work backwards.

Doug
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
where is session ID cache stored 1 46
what is a "java.lang.System Property"   ? 20 57
xampp tool 12 25
oracle 11g 23 49
An old method to applying the Singleton pattern in your Java code is to check if a static instance, defined in the same class that needs to be instantiated once and only once, is null and then create a new instance; otherwise, the pre-existing insta…
Java functions are among the best things for programmers to work with as Java sites can be very easy to read and prepare. Java especially simplifies many processes in the coding industry as it helps integrate many forms of technology and different d…
The viewer will learn how to implement Singleton Design Pattern in Java.
This theoretical tutorial explains exceptions, reasons for exceptions, different categories of exception and exception hierarchy.

910 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

22 Experts available now in Live!

Get 1:1 Help Now