April 27, 2009 √ Alert: Shadowing Stall

InterSystems has corrected a defect that can cause shadowing to stall while
reporting itself as still processing.
This defect exists only on Windows platforms (both Win32 and Win64). The
following product versions are at risk:
CachИ 5.2.4
CachИ 2007.1.4 and above
CachИ 2008.x
Ensemble 2008.x
Any Ensemble kit based on an at risk CachИ version

This defect is triggered when the source system for shadowing uses a journal
prefix and the prefix contains an UPPERCASE character or characters.
Application of journal files on the destination of shadowing stalls at the
point it should start using the journal file with the UPPERCASE prefix.
When this occurs shadowing continues to report itself as processing.

When this defect is triggered the cconsole log on the source system will
record an error of the form:
04/20-14:18:29:930 (1620) 0 NEXTJRN: -98,'c:\dirpath\JFM20090420.005'
appears to be the next file of 'c:\dirpath\jfm20090420.004' but contains a
pointer to a different previous file from 'c:\dirpath\jfm20090420.004' and
thus couldn't be the next file

The correction for this defect is identified as HYY1456 and is expected to
be included in CachИ and Ensemble 2009.1. This defect can easily be avoided
by using lowercase prefixes for journal file names. The correction is also
available from InterSystems as an Ad Hoc distribution.

If you have any questions regarding this, please contact the InterSystems
<mailto:support@...> Worldwide Response Center (WRC).



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