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Limitations of Focus files in WebFOCUS
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Syed
Platinum Member
posted
What are the limitations of Focus files in terms of:
"Multiple users accessing it at the same time and trying to fetch data "


Using WF 7.1.7/Dev Studio
 
Posts: 189 | Location: Boston, MA | Registered: July 12, 2005Report This Post
dhagen
Virtuoso
posted Hide Post
There is no read only limitations. I would suggest that you use XFOCUS instead of FOCUS files. XFOCUS files can be up to 5 times larger then the regular ones. There are a bunch of other advantages, but I'm sure you can read that off the doc.


"There is no limit to what you can achieve ... if you don’t care who gets the credit." Roger Abbott
 
Posts: 1102 | Location: Toronto, Ontario | Registered: May 26, 2004Report This Post
BarbaraA
Member
posted Hide Post
The only limitation is if you want to write to FOCUS files - then you need to use the sink machine to manage that.


WF Reporting Server 71x, 76x
 
Posts: 15 | Registered: September 10, 2007Report This Post
ptp
Silver Member
posted Hide Post
One small correction:

XFOCUS databases can scale to 4TB and can also utilise Multi-Dimensional Indexes, I have seen benchmarking which shows XFOCUS DBs performing faster than similarly sized RDBMSs.

P
 
Posts: 42 | Location: UK | Registered: October 23, 2005Report This Post
dhagen
Virtuoso
posted Hide Post
Thanks for the correction! I guess I should take my own advise and read the doc!


"There is no limit to what you can achieve ... if you don’t care who gets the credit." Roger Abbott
 
Posts: 1102 | Location: Toronto, Ontario | Registered: May 26, 2004Report This Post
Syed
Platinum Member
posted Hide Post
Thanks for the responses!! I got some related information too.
But actually I would like to know if there's any limit on the no. of users trying to access the FOCUS file at the same instant. I heard that this limit is 32. I'm not sure though.


Using WF 7.1.7/Dev Studio
 
Posts: 189 | Location: Boston, MA | Registered: July 12, 2005Report This Post
jgelona
Master
posted Hide Post
Syed,

There's no limit on the number of users trying to read a FOCUS database at the same time.

There's no limit to the number of users trying to write to a FOCUS database.

However, as BarbaraA points out, if you have multiple users writing, you need the sync machine and it's associated code in your maintenance routines. The sync machine may have a concurrent user limit depeneding on the license, but the FOCUS and XFOCUS files don't.


In FOCUS since 1985. Prod WF 8.0.08 (z90/Suse Linux) DB (Oracle 11g), Self Serv, Report Caster, WebServer Intel/Linux.
 
Posts: 975 | Location: Oklahoma City | Registered: October 27, 2006Report This Post
Syed
Platinum Member
posted Hide Post
Great!
Thanks a lot. It clarifies my doubts.

Regards
Syed


Using WF 7.1.7/Dev Studio
 
Posts: 189 | Location: Boston, MA | Registered: July 12, 2005Report This Post
Ingas
Gold member
posted Hide Post
Just curious:
If XFOCUS so cool, why it's not popular?


WF 7.6.2, WinNT/2K, MSSQL 2K, MSOLAP 2K, BID
 
Posts: 79 | Location: Moscow | Registered: April 27, 2007Report This Post
Francis Mariani
Expert
posted Hide Post
Because it's new, like Vista, but hopefully better.


Francis


Give me code, or give me retirement. In FOCUS since 1991

Production: WF 7.7.05M, Dev Studio, BID, MRE, WebSphere, DB2 / Test: WF 8.1.05M, App Studio, BI Portal, Report Caster, jQuery, HighCharts, Apache Tomcat, MS SQL Server
 
Posts: 10577 | Location: Toronto, Ontario, Canada | Registered: April 27, 2005Report This Post
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