Comments on: Web Intelligence Hangs, Allocate More Memory to Java

By: Chad Baxter

Chad Baxter — Mon, 19 Sep 2011 22:33:16 +0000

Mine dosent have any parameters to start with and wont save any

By: Rave

Rave — Thu, 17 Mar 2011 15:22:38 +0000

Hi to all

Just had a call from BO Support,

As I wanted to make sure 100% updating to latest java 6 will not cause any issue and is it supported by BO

The Chap, said that Java 6_update 10 is supported in BO XI R2 SP4 & Above and XI R3 minimum requirement for java is also JAVA 6_update 10

So who are using BO XI R3, will need to install Java 6_update 10 in order to benefit from best of both worlds.

This java 6_update 10 is supported plus BO will not lose any functionality

By: Julian

Julian — Tue, 26 Oct 2010 03:47:31 +0000

Hi Abel, what exactly are you doing when you get this error?

BTW, I recommend setting Xmx and Xms to the same value. Things run just a bit better when you do.

By: abel corona

abel corona — Wed, 20 Oct 2010 18:01:58 +0000

Hi!
My server have 8GB of memory

I’m using
java version “1.4.2_08?
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_08-b03)
Java HotSpot(TM) Client VM (build 1.4.2_08-b03, mixed mode)

with :
-Xmx2048m -Xms1024m -XX:MaxPermSize=512m

but y get:

Error occurred during initialization of VM
Could not reserve enough space for object heap

do you have any idea?

By: Improve Performance - Tweak - Hosts File - DNS Look-up | Business Objects Tips

Sat, 07 Aug 2010 03:36:52 +0000

[...] other day I answered a different article’s comment with a very brief mention of what I’ve been told by SAP-BO was a common tweak. The potential [...]

By: Julian

Julian — Thu, 15 Jul 2010 12:17:47 +0000

Hi MArcV, please see my response in this new article. Thank you for your question.

By: MarcV

MarcV — Wed, 14 Jul 2010 13:41:08 +0000

Julian,

Can you expand on the last comment? I would love to know more about it, as common tweaks should be… common? I have never seen that tweak mentioned anywhere.

Currently, we host everything on one server (yeah, I know). Should we enter the server’s name and IP in the hosts file as if it were on a separate machine? Using Tomcat for the app server, that would affect pretty much everthing that gets served up (logins, screen renders, WebI, Web Services…)

I’m all for speeding things up. What aspects would this affect? WebI/C Reports/LOV/???

Do you know of any consolidated source of “common tweaks”? I usually find one there here, one thing there… which means, you only know about the things that you might be researching if you’re noticing problems. Not knowing about Java having a poor implementation for DNS look-up, we might never have touched on that for our BOXI issues.

By: Julian

Julian — Tue, 06 Jul 2010 15:15:12 +0000

I have never really played with Xcelcius enough to have hit its limits; so I don’t have much advice on this. One thing occurs to me though, I have noticed on my Web Application Servers that are running BO Java applications that I get a good performance improvement (especially with logins) when I list the CMS servers in the Web Application Server’s hosts file. This is actually a common tweak that BO admins use, because of Java’s poor implementation of DNS look-up. I wonder if there is some way a similar addition to your hosts file would improve your performance.

By: John

John — Tue, 06 Jul 2010 15:06:12 +0000

Hei…We are using BO on SAP BW. We are caing some performance issues in Xcelcius wherein a BEx query that takes 5 seconds to execute in BEx is taking around a minute to execute in Xcelcius. The number of rows are about 500. When we did an analysis at Xcelcius side its seen that the actual data retrieval time is only 5 to 10 seconds..

Any pointers on where its taking the rest of the time.. Can it be the issue of a wrong java version.. if yes at server side or clent side??? If you are aware about the recommended java versions then that will also help..

By: Julian

Julian — Fri, 18 Jun 2010 11:24:47 +0000

Hi Chris, it sounds like a cached copy of the universe and/or LOV on the server(s) might be causing your troubles. If you could delete the cache on all effected servers you might resolve the issue. Additionally you might be able to make a small change to the universe and see if that forces the server(s) to flush out their cached copy.