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| Тема: | [cache_ru] [Cache-News] Incorrect Rollback of SET $BIT Operation |
| Начало этой темы: | [cache_ru] [Cache-News] Incorrect Rollback of SET $BIT Operation |
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FYI
=====================================
January 7, 2007 - Incorrect Rollback of SET $BIT Operation
InterSystems has corrected several Caché &
Ensemble defects that, in rare instances, can
cause rollback of SET $BIT operations within transactions to corrupt data.
The use of the SET $BIT operation outside of
transactions is not subject to these defects.
These defects exist, to varying degrees, in all
currently released versions. Actual database
updates are performed correctly. Affected
entries in the database are only corrupted by
transaction rollback of the SET $BIT operation.
One defect results in the old data value of a SET
$BIT operation being incorrectly
journalled. This is only of concern when a
rollback is necessary since the old value to be restored is incorrect.
The second defect occurs if two transactions
affecting the same $BIT value are rolled back
concurrently. It is possible for the values to
be applied out of order resulting in an incorrect final value.
The corrections for these defects, identified as
HYY1359, SJ1831, SJ1929 and SJ2281 will all be
included in the upcoming 2008.1 Release. They
are also available from InterSystems WRC in an Ad Hoc distribution.
If you have questions please contact InterSystems
Worldwide Response Center (WRC) - E-Mail.
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The information is also posted to our website.
All the Cache' support issues announced on this list are at:
http://www.intersystems.com/support/cflash/index.html
Current release information is available at:
http://www.intersystems.com/cache/technology/product-tables/current-prodlist
..html
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2010-03-10 1:31:43 - : /home/jusoft/tmp/xap/cache_simplygate_com_00.txt
2010-03-10 1:31:43 - : /home/jusoft/tmp/xap/cache_simplygate_com_00.txt