October 14, 2015 – Alert: Database Defragmentation

InterSystems has corrected a defect with the Caché database defragmentation utility.  The defect has been observed to cause access violations in the defragmentation process, leading to a hung environment.  Other impacts are possible though have not been reported.  These include database degradation (which may occur without warning message) and process failures.

This risk exists in all released versions of Caché, Ensemble, and HealthShare beginning with 2014.1.  The risk is present for all platforms and operating systems except OpenVMS.

InterSystems recommends that you postpone any database defragmentation activities until you apply the correction.

The correction for this defect is identified as JO2871.  It will be included in all future releases of Caché, Ensemble, and HealthShare.  The correction is also available via Ad hoc distribution from InterSystems Worldwide Response Center (WRC).

If you have any questions regarding this advisory, please contact the Worldwide Response Center.