Known issues and limitations in Cloudera Data Visualization 7.2.8

Learn about the known issues and limitations that you might experience while using Cloudera Data Visualization. You can find information about the areas of impact, affected product versions, and possible workarounds.

Picklist in complex data types Show Selected unselects previous selections

Show selected in a filter list selection may not show all selections depending on the data type. A fix is expected in a future release.

Workaround

None

Versions affected

Cloudera Data Visualization 7.0.2 - 8.0.2

Fixed in version

N/A

Cloudera issue

VIZ-456

Inconsistent support for non-roman or character-based alphabets across visual types

Non-romanized or character-based alphabets are not consistently supported across various visual types. If not supported, the affected visual is not properly rendered in PDF/PNG downloads. CSV/Excel downloads and general dashboard viewing is available for all languages.

The following languages are not supported when using a table visual.

In Cloudera AI:	In Cloudera Data Warehouse:
Amharic (Ethiopia) Arabic (multiple countries) Bengali (Bangladesh) Berber (multiple countries) Burmese (Myanmar) Dari Pashto (Afghanistan) Dzongkha (Bhutan) Fijian (Fiji) Georgian Hebrew (Israel) Khmer (Cambodia) Lao Malay (Brunei) Many Indian languages Nepalese (Nepal) Persian (Iran) Tamil (Malaysia, India, Singapore) Thai (Thailand) Urdu (Pakistan)	Amharic (Ethiopia) Bengali (Bangladesh) Burmese (Myanmar) Dzongkha (Bhutan) Fijian (Fiji) Khmer (Cambodia) Many Indian languages Nepalese (Nepal) Tamil (Malaysia, India, Singapore) Thai (Thailand)

Workaround

None

Versions affected

Cloudera Data Visualization 7.0.2 - 8.0.2

Fixed in version

N/A

Cloudera issue

VIZ-984

Saved value does not show properly when arcapi is present

After the fix included for VIZ-1070, a known issue is still present when using arcapi.sendParameters with app-scope filters.

Workaround

None

Versions affected

Cloudera Data Visualization 7.0.2 - 8.0.2

Fixed in version

N/A

Cloudera issue

VIZ-1181

Upgrade snowflake-connector-python when the corresponding issue is fixed

For some characters, snowflake queries return "Failed to convert current row, cause: 'utf-8' codec can't decode byte" error (SNOW-182387: UTF-8 decoding exception when querying table in SNOWFLAKE_SAMPLE_DATA).

Workaround

None

Versions affected

Cloudera Data Visualization 7.0.0 - 7.2.8

Fixed in version

Cloudera Data Visualization 7.2.9

Cloudera issue

VIZ-1455

Change password screen shown on page refresh for autologin user

If an unauthenticated/autologin user accesses a public workspace dashboard on an Incognito tab and then refreshes or tries to reload the page, it can unexpectedly trigger the display of the Change Password modal.

Workaround:

To resolve this issue, change the autologin user's password once using the Change Password modal. After changing the password, the issue should no longer occur and the autologin functionality will work as expected.

Versions affected:

Cloudera Data Visualization 7.1.3 - 8.0.0

Fixed in version:

Cloudera Data Visualization 8.0.1

Cloudera issue:

VIZ-2122

Selecting NULL values can cause ParseException syntax error from Cloudera Data Visualization 7.1.3

After upgrading to Cloudera Data Visualization 7.1.3 or later, selecting "NULL" values in filters may lead to a ParseException syntax error.

Workaround:

To resolve this issue, deselect the “NULL” value in the picklist filter.

Versions affected:

Cloudera Data Visualization 7.1.3 - 8.0.2

Fixed in version:

N/A

Cloudera issue:

VIZ-2224

'Everyone' group option has to be manually specified in workspace permissions

The 'Everyone' group is not shown as an available user group that can be applied when specifying visual workspace permissions.

Workaround:

Type 'Everyone' in the Groups field and press tab to apply it.

Versions affected:

Cloudera Data Visualization 7.1.8-7.2.8

Fixed in version:

Cloudera Data Visualization 7.2.9

Cloudera issue:

VIZ-2754

Cloudera AI data connection syncing on premises can result in errors connecting to the data connection

In Cloudera AI on premises 1.5.4 environments, syncing data connections may result in connection errors.

Workaround:

Follow the instructions provided in Workarounds for Cloudera Data Visualization with Hive and Impala.

Versions affected:

Cloudera Data Visualization 8.0.0 and lower

Fixed in version:

Cloudera Data Visualization 8.0.1

Cloudera issue:

VIZ-2913

Partitioned Cloudera Impala on premise extract tables cannot be updated

Tables in Cloudera Impala that are both partitioned and set as extract targets cannot be updated directly. This prevents operations such as dropping or adding new partitions.

Workaround:

Move the data to a new table that supports altering commands. Then replace the original extract table by renaming the newly created table. Optionally, you can create a backup of the original table before replacing it.

A sample SQL workflow is provided below. Customize the components marked in blue, while the remaining parts of the query are standard.

1. Create a temporary table (database_name.new_table_name) that supports altering.

   create table database_name.cdv_table_name_new (table_definition) partitioned by (partition_field string) tblproperties('transactional'='false');

2. Copy existing data from the original extract target.

   insert into database_name.cdv_table_name_new partition(partition_field) select * from database_name.cdv_table_name;

3. [Optional] Save the original extract target as a backup.

   alter table database_name.cdv_table_name rename to database_name.cdv_table_name_bak;

4. Make the temporary table the current extract target.

   alter table database_name.cdv_table_name_new rename to database_name.cdv_table_name;

Versions affected:

Cloudera Data Visualization 7.2.8 and lower

Fixed in version:

Cloudera Data Visualization 7.2.9

Cloudera issue:

VIZ-3042

AI redacting does not remove contextual information

AI visual payloads are included in historic query logs and webserver logs, regardless of the site setting.

Workaround:

None

Versions affected:

Cloudera Data Visualization 7.2.9

Fixed in version:

Cloudera Data Visualization 8.0.0

Cloudera issue:

VIZ-3061

Saved filters not applied when there is a textbox filter on the dashboard

When a dashboard contains a textbox parameter, default filter values are not applied correctly upon first load.

Workaround:

Search for a value in the picklist and save the dashboard. Note that the selected value will not persist after reloading the dashboard.

Versions affected:

Cloudera Data Visualization 8.0.0 and lower

Fixed in version:

Cloudera Data Visualization 8.0.1

Cloudera issue:

VIZ-3089

Action dropdown not fully visible in the Visuals page table view

If fewer than two dashboards or applications are displayed in a Workspace on the Visuals page, the action dropdown in the table view will not be fully visible.

Workaround:

Use the tile view instead of the table view when performing actions on the Visuals page with fewer than two items shown.

Versions affected:

Cloudera Data Visualization 7.1.8 - 8.0.0

Fixed in version:

Cloudera Data Visualization 8.0.1

Cloudera issue:

VIZ-3109

Performance issues in visuals with filters

Dashboards with a large number of visuals containing filters may experience exponentially slower rendering times.

Versions affected:

Cloudera Data Visualization 6.3.1 - 8.0.1

Fixed in version:

Cloudera Data Visualization 8.0.2

Cloudera issue:

VIZ-3192