#Alerts

November 22, 2016 – Alert: Database Integrity on UNIX^® and Linux Platforms

InterSystems has corrected a defect that may, in rare circumstances, result in database degradation on UNIX and Linux platforms.

This defect affects Caché, Ensemble, and HealthShare distributions beginning with Caché version 2012.1. It is only a possible risk on UNIX and Linux platforms that are using asynchronous I/O for database writes. The following table specifies if asynchronous I/O is always on or optional for the affected platforms and releases:

July 6th, 2016

InterSystems has corrected a defect with Mirroring that can impact data integrity

The defect is present in all released versions Caché, Ensemble, and HealthShare beginning with 2015.2.0. It is present for all platforms and affects both failover and asynchronous mirroring configurations.

February 25, 2016 – Alert: Incorrect SQL Results InterSystems has corrected a defect that can cause incorrect results for certain SQL INSERT, UPDATE, and DELETE statements.

This defect is present only in Caché and Ensemble 2015.2 and HealthShare distributions based on them. The problem affects all platforms.

Incorrect results occur only when two or more of these statements are nested within each other.

The example below demonstrates one possible way for this problem to happen:

1. The class has an UPDATE trigger that uses embedded SQL to modify a table.