On 03/03/2011 08:19 AM, McKown, John wrote:
This is a type of "opinion poll" question. In general, it could be reduced to: "What
do you think of XML encoded data?". In particular, the nice RACF people have a program `which
unloads their SMF audit data in XML format as an option. What is nice about it is that the data is
printable and so easily downloaded to my Linux system. XML formatting is nice because it easier to
read using Java and XSLT processor to do queries and reformatting. Which makes it easier for me to
load into a database (PostgreSQL based in my case). I would find it very helpful to me if more SMF
records could be made available in XML character format so that I could easily process it on Linux.
So I'm wondering what others think of this? Does anybody else like XML? Or am I, once again, in the
minority? Yes, I could write an HLASM program myself to do this. Perhaps by somehow reading ADATA
output to generate a program to do it.
John McKown
Systems Engineer IV
IT
Administrative Services Group
HealthMarkets(r)
9151 Boulevard 26 * N. Richland Hills * TX 76010
(817) 255-3225 phone *
[email protected] * www.HealthMarkets.com
...
I can see this as potentially useful if applied to a subset of SMF data.
But for processing all our umpteen million daily SMF records on
another platform it would be a grossly inefficient choice, since adding
XML tags to all fields would no doubt increase the physical size of an
already large file by a factor of 3 or worse. Compression of
XML-formatted data could significantly reduce external file size, but
compression/decompression costs cpu, and at some point in creating and
using the data you still have to work with the expanded bytes. XML
representation has its advantages, but practicality goes down as volume
of data goes up.
--
Joel C. Ewing, Fort Smith, AR [email protected]
Bentonville, AR [email protected]
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