In this release, security was improved by closing several vulnerabilities.

TA-4346

In the Platform Analytics installer, Property Transform functionality can be configured to work with an existing external RabbitMQ instance, instead of the instance provided with the installer. However, this type of installation generates errors in both the configuration and RabbitMQ log files. The problem is caused by incorrectly encrypted RabbitMQ passwords. The issue has been resolved so that passwords for external instances of RabbitMQ are encrypted properly.

TA-4278

When Platform Analytics is installed on a Windows server, stopping and restarting the Property Transform and Apache Flink services can leave behind unnecessary Flink storage files. If these storage files are not removed, they can lead to file growth that will fill up the local temp storage and cause Property Transform and other services to run slowly or fail.

The issue is related to the relative order in which the twpas-property-transform-service and the twpas-flink-service start up and shut down. A fully automated solution to this issue is available in Platform Analytics 8.4.8.

For earlier versions of Platform Analytics, a manual work around is available to create the proper dependencies between the services. The solution is two-fold and requires the following:

For detailed information about the work around, see Article – CS320421

TA-4302

When running a request for Signals, and specifying maxAtATime = 2, Mutual Information (MI), in relation to the goal, is not returned for all field combinations as expected. Instead, individual (one-at-a-time) MI scores are returned for all fields and then are filtered down to the top 25% most relevant fields. Two-at-a-time signals are calculated only for those fields. There is currently no way to modify this filtering behavior.

TA-729

Analysis agents must be restarted after a ThingWorx server restart. Without restart of the agent, any new simulation jobs will fail to execute.

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When a non-time series model is uploaded using the Analytics Server Connector, and all of the properties, including the key field are mapped, a time window event does not work.

AM-1289

When a replay event is executed, the on-screen progress bar does not update as the replay event progresses. The issue is related only to the user interface (UI), and the actual execution of the replay is not affected. As a work around, refresh the browser or navigate to another tab and then return to the Replay tab. The progress bar will update. This UI issue will be resolved in a future release.

TA-1345

When filtering is applied to a list page with multiple pages (such as the Models list page), the filtered results are not aggregated for display on a single page. Instead, the filtered results remain on their original pages and multiple pages must be clicked through to find all the filtered results.

To improve handling of list page displays, a configurable parameter has been added to set the number of table items that can be displayed per page. A more permanent resolution for the filtering with pagination issue will be provided in a future release.

TA-1596

TA-1618

TA-1928

There are currently some limitations on the size and number of columns a dataset can contain. These limitations depend on the mix of data types your data includes. For specific information, see the Data section of Prepare Data and Metadata.

When trying to upload a dataset with a large number of columns, if the upload fails and an error message is generated, try the following workarounds:

TA-2599

When a field that begins with a number is included in a dataset or in metadata, most Analytics Server jobs can run successfully, such as training a model, running or scoring. However, when a server query is executed, such as a BinnedDistribution, the query fails. As a work around, avoid using field names that begin with a number.

This issue will be resolved in a future release so that field names can begin with numbers.

TA-2795

TA-2799

The Analytics Server installer should not allow installation of Analytics Extension without Analytics Server. In both graphical and text mode installations, a warning message is displayed when the Analytics Extension component is selected for installation but Analytics Server is deselected. The installer will not continue unless Analytics Server is also selected. However, in the silent install mode, no such warning is displayed and the installer completes successfully with only the Analytics Extension installed. Of course the Extension cannot run without the Analytics Server so it is not usable.

This issue will be resolved in a future release.

TA-3231

When a signals job is launched with the Redundancy Filter option selected, the features returned by the signals job are ranked according to the amount of information gain they provide, rather than by their predictive strength. However, in certain cases, an exception is generated with an error message indicating that some information gain values fall outside of the expected range. This error occurs when the signals job encounters continuous data where the value is near the minimum or the maximum of the expected range.

This issue will be resolved in a future release.

TA-4479

In this release, an issue is preventing the Flink service from being deleted when Platform Analytics is uninstalled from a Windows environment. This issue can cause your next installation attempt to fail. The issue will be resolved in a future release. As a work around, reboot the server to clean up the service before reinstalling.

TA-4566

ThingWatcher was discontinued as a standalone SDK in 8.3. However, ThingWatcher functionality is available in the Anomaly Detection features native to the ThingWorx platform. For more information, see Anomaly Detection.

ThingPredictor software media is no longer available for download as of 8.3. However, support will continue for 8.x users until the next major release. To replace ThingPredictor capabilities, an improved set of predictive services is being introduced in 8.3. For more information, see How Predictive Scoring Using the Analytics Server Connector Works.

DataConnect and the Data Analytics Definition are not available as of 8.3. Replacement functionality will be introduced in a future release.