Known Issues and Notes

Copy link to this sectionIssue Upgrading InterSystems Cloud Manager with Service Discovery

Using Service Discovery to upgrade ICM will not work if there are 10 or more nodes or if nodes have ever been scaled. Consequently, Service Discovery (as a means to share or upgrade ICM containers) is not fully supported in this release.

Copy link to this sectionEmbedded Python Issues

Embedded Python has the following issues:

• Memory issue — in some circumstances, an object returned from a Python method to ObjectScript may not have its reference count correctly decremented upon object destruction. The resources used by these objects will not be deallocated until the Health Connect process is terminated. This issue will be corrected in the next release.

• AIX — Embedded Python is not supported on AIX in this release. This issue will be addressed in the next release.

• Terminal output — on all platforms, ObjectScript code in methods or routines invoked from the irispython binary will not produce terminal output. Additionally, on Windows, such ObjectScript terminal output can cause the irispython process to become temporarily unresponsive to keypress input. This issue will be addressed in the next release.

Copy link to this sectionIssue with Journal Compression on Windows

In some circumstances, Health Connect on Windows may fail to open a journal for use in transaction rollback if it is simultaneously being compressed, resulting in unreported rollback failure. InterSystems recommends against use of journal compression on Windows installations in a production deployment. This issue will be addressed in the next release.

Copy link to this sectionApple macOS Issues

The MacOS is supported only as a development system. In this release, there are the following issues running on the MacOS:

• LDAP does not work on MacOS running on Mac M1 Apple silicon processors.

• You cannot use the node.js external language on MacOS.

• On Apple macOS, Health Connect does not have a requirements checker, but there are required dependencies. See Installing the Required Dependencies.

Copy link to this sectionChanging sysctl Setting for net.ipv4.tcp_syncookies on Linux

On Linux systems, if the sysctl setting for net.ipv4.tcp_syncookies is changed while your instance is running, you should invoke the following method $system.INetInfo.SetListenQSize() to set the TCP listen queue size for the /CLOSELISTEN option. If the queue size is changed there will be a message logged in the message log.

Copy link to this sectionManagement Portal Web Applications May Time Out Despite User Activity

In InterSystems HealthShare Health Connect 2018.1 and later, an automatic logout feature was implemented and enabled by default. When the feature is enabled and a user is inactive on a Management Portal web application for longer than the Session Timeout value for the web application, then the user is logged out. However, InterSystems HealthShare Health Connect only registers actions that result in a call to the server as activity. Consequently, a user may be modifying a Management Portal page immediately before an automatic logout and lose any unsaved changes. For example, if a user is editing a business process, but has not clicked Save for longer than Session Timeout threshold, then the user's session expires and any unsaved changes are discarded. After an automatic logout, the login page appears or the current page is refreshed.

You can take several steps to prevent users from losing work:

• Remind users to save their work on a regular basis.

• Extend the Session Timeout value for web applications where users are performing time-intensive configuration tasks such as modifying data transformations. The default Session Timeout value is 15 minutes.

• Disable automatic logouts for the Interoperability pages in the Management Portal by modifying the ^EnsPortal global as follows:

  set ^EnsPortal("DisableInactivityTimeout","Portal") = 1 

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InterSystems recommends that you consider the possible security implications before you make any changes.

For more information, see Automatic Logout Behavior in the Management Portal.

Copy link to this sectionMultiple Files Created from a Single X12 Document

When an interoperability production uses the default X12 business operation to write to a file, a single X12 document can result in multiple files. In this scenario, an extra file is created for each Functional Group in the original X12 batch document. This error occurs with certain File Name options when the Auto Batch Parent Segs setting is enabled.

Copy link to this sectionDTL Creates Empty Target Segment

A DTL includes an option called Ignore missing source segments and properties. When enabled, errors caused by a missing source segment are suppressed. However, in this release, an empty segment is still created in the target when the DTL encounters a missing source segment.