Known Issues

It's on our radar.

If you come across something not covered here, please email us at documentation@arcadiadata.com.

ADMIN API: Calls that use API tokens may not work

Description
For all token-based administrative API calls, like calls from python-based scripts, the calls may fail with errors, or return blank results.
Workaround

Perform these steps:

  1. Add the following parameter to ArcViz settings.py file:

    ADMINAPI_REQUIRE_APIKEY = True 
  2. Restart the Arcadia Visualization Server, ArcViz.
Domain
System Administration

ARCENGINE: Must Have Directory arcengine-scratch

Description

Arcadia Engine throws an exception when inserting, or when refreshing analytical views.

Arcadia Engine installs and uses the directory /tmp/arcengine-scratch. This directory may be removed by the user accidentally, or as a result of a reboot.

Workaround
Create the directory manually.
Domain
Analytical Views, Installation

ARCENGINE: Analytical Views do not Support WITH Clause Queries with a SELECT List Alias

Description

If ArcEngine receives a WITH … SELECT alias query, the following happens:

  1. The query does not route to an existing matching Analytical View.
  2. Accelerating a visual based on this query does not work; ArcEngine provides the same recommendation repeatedly because the query does not route to an analytical view (see above).
Workaround
None
Domain
Analytical Views

ARCENGINE: Logging Level Set to 0 by Default

Description

During installation, the Arcadia Engine logging level defaults to level 0. This excludes information about query execution from the logs.

Workaround

Change the Arcadia Analytics Engine Minimum Log Verbosity to 1 during installation.

Domain
Logging

ARCENGINE: Daemon is Over the Memory Limit

Description

Arcadia Engine defines the minimum memory limit at install time through the configuration attribute Memory Limit, and sets it to 64 MB by default. An overcommitted Cloudera node may cause the Arcadia Engine memory allocation to shrink to this size, which may prove to be insufficient for reasonable workloads.

Workaround

After installing Arcadia Service, change the configuration attribute Memory Limit to the recommended memory size of 8 GB. We recommend this change for any installation where Memory Limit is currently at 64 MB.

Domain

Administration, Installation

EMAIL: Emailing Visuals with Non-ASCII Characters in Title or Email Subjects Fails

Description

Visuals that include non-ASCII characters in their title, or in the subject of the email cannot be sent over email successfully. Instead, they do not complete and remain in the “running” state.

Workaround
Change the name of the visual and/or the email subject to exclude or replace non-ASCII characters.
Domain
Administration, Visualization, Settings

EMAIL: No Monitoring for Messages Sent to Non-Existing Email Addresses

Description
Arcadia does not monitor if emails sent to non-existing emails succeed. Arcadia does perform a basic validation for correct syntax in email addresses.
Workaround
None
Domain
Administration, Visualization, Settings

MIGRATION: Schema Check not Performed

Description

When migrating visual artifacts, there is no checking that the data table schema of the destination system matches the source.

Workaround
Manually check that the table schemas for all visual artifacts on the destination system matches the source, or that it is a super-set of the source schemas.
Domain
Migration, Utilities

PNG Export and Thumbnails for Custom JS Support

Description
PNG Snapshot Export and Thumbnails for custom visuals support only ECMA Script 5 for JavaScript.
Workaround
Ensure that your JS version complies with ECMA Script 5.
Domain
Administration, Visualization

PNG Export and Thumbnails Generation Does Not Work on Windows Platforms

Description
PNG Export works for Mac OS and Linux platforms. Package dependencies for Thumbnails on Windows currently prevent reliable PNG Export.
Workaround
None
Domain
Administration, Visualization

PNG Export and Thumbnails on Linux Platforms Have Package Dependencies

Description

In CDH Parcel installations, PNG Export and Thumbnail generation may not work correctly.

Workaround
These features require the presence of third-party fontconfig, freetype, xorg-x11-font-utils, and urw-fonts packages. Use the following command to install the appropriate dependencies:
> sudo yum install fontconfig freetype xorg-x11-font-utils urw-fonts
Domain
Administration, Visualization

CONNECTION: User-defined Aggregate Expressions Marked as Non-Aggregates

Description

This occurs on Arcadia, Spark SQL, Hive, Impala, and Oracle connections:

  • In Release 4.1.5.1, when a user defines aggregate expressions on a field in dataset interface, they may be incorrectly marked as non-aggregates.
  • In Release 4.2.0.0, when a user defines non-aggregate expressions on a field in dataset interface, they may be incorrectly marked as aggregates.
Workaround
Save the user-defined field in the dataset again.
Domain
Connecting, Visualization

CONNECTION: User-Defined Aggregate Expressions Do Not Validate

Description
On all connections, when a user enters an aggregate expression in the Enter /Edit Expression interface, the expression fails validation. However, the query runs as expected.
Workaround
Save without validating the expression.
Domain
Connecting, Visualization

CONNECTION: User-Defined Numeric Expressions Do Not Validate

Description
On Hive connections, when a user creates a new numeric expression in the Enter /Edit Expression interface, it fails validation and reports an error that the column does not exist. However, the query runs as expected.
Workaround
Save without validating the expression.
Domain
Connecting, Visualization

CONNECTION: Query Fails if Dataset Column Names Invoked Without Brackets

Description
On SQLite connections, when a user defines a dataset column name and uses it without brackets in the Enter /Edit Expression interface, the expression validates, but the query fails at run time.
Workaround
Ensure that column names in the expressions use brackets, like this: [field_name].
Domain
Connecting, Visualization