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v4.6.2.0 Release notes

Software version

Release Date: 09/22/2020

See v4.6.2.0 for download information.

Software upgrade support

There is no support for upgrade in v4.6.2.0.

Sensor upgrade

  • A sensor upgrade is mandatory.

Certified platforms

Review your platform's compatibility matrix before you install Unravel.

Updates to Unravel's configuration properties

New features

  • New Unravel Installer

    A new installer is introduced in Unravel v4.6.2.0. The new installer ships Unravel binaries as a tar file as well as an RPM package. The following are the highlighted features of the new installer:

    • Provides faster, easier, and more transparent deployment. Better visibility into an installation.

    • Zero privileged access (root, sudo) required for installation.

    • Can be installed in any location. Configurable locations for software, data, etc.

    • Configurable user for execution.

    • Minimal OS level dependencies

    • Better recovery from install/upgrade issues.

    • Enhanced service and configuration management.

    • Supports multi-cluster deployments.

  • Unravel User Interface (UI)

    The Unravel user interface is completely redesigned and reorganized for ease in navigation. Multi-cluster support is added, which extends to all the pages in the new user interface. The following are the highlighted features of the new UI:

    • State Management for the UI interface.

    • Faster loading of pages.

    • Use of uniform and intuitive color palettes.

    • Lazy loadings supported in the Application details page.

    • Single page content view in most of the applications, instead of opening multiple pages.

    Following is the list of pages on the new UI and their corresponding changes from the existing UI.

    New UI pages

    Changes to Existing UI


    Formerly Operations contains all information across the entire cluster. The Reports > Operational Insights functions/reports have been moved here.


    Replaces Applications page.


    Formerly Reports > Data Insights.


    Currently this page is a repository for the archived and scheduled reports.


    Formerly Reports > Migration Planning


    Formerly Manage > AutoActions.


    Currently can be directly accessed from the title bar.

  • Multi-cluster support for on-prem clusters

    The Multi-Cluster feature allows a single Unravel installation to monitor multiple independent on-prem clusters (CDH and HDP only).

  • Elasticsearch, Logstash, and Kibana

    Unravel supports metrics and graphically represents the KPI information for Elasticsearch, Logstash, and Kibana from the Unravel UI.


  • Unravel does not support multi-cluster management of combined on-prem and cloud clusters.

  • Does not support apps belonging to the same pipeline but is sourced from different clusters, in a multi-cluster environment. A pipeline can only contain apps that belong to the same cluster.

Hive on Spark is not supported.

  • Missing table and column statistics events.

The following reports are not supported in v4.6.2.0:

  • Cluster Summary

  • Cluster Compare

  • Executive KPI

  • Migration Planning is not supported for the following regions for Azure Data Lake:

    • US DoD East

    • US DoD Central

    • Germany Central (Sovereign)

    • Germany Northeast (Sovereign)

  • Forecasting and Migration reports: In a multi-cluster environment, only a single cluster can be configured at a time hence reports are generated only for that single cluster.

The Applications > Sessions page is not supported in Unravel version v4.6.2.0.

The signup feature is not enabled in Unravel version v4.6.2.0.

  • Pig and Cascading applications are not supported.

Improvements and enhancements

  • Spark

    • Support for showing job failure reason in the Job details. (USPARK-756)

    • Support for streaming-sql applications. (USPARK-706)

    • New diagnostics message added to report if sensor configuration is not correct or live data is not received. (USPARK-688)

Bug fixes

  • None

  • INSERT statements are not included in the App count on HDI. Applicable only for the HDI cluster. (DATAPAGE-256)

  • Errors tab disappears from the App/Job Summary view whenever the user opens and closes the Stage view. (UIX-3470)

  • Importing JKS for the TrustStore through manager config is failing. (INSTALL-845)

    Workaround: Run the following command from the Manager tool, this will configure Unravel with TLS:

    ./unravel/manager config tls set --pem unravel/unravel_wildcard.JKS --key-password {{ wildcard_key_pass }}
  • There is a lag seen for SQL Streaming applications. (PLATFORM-2764)

  • For PySpark applications, the processCPUTime and the processCPULoad are not captured properly. (USPARK-626)

  • Partition size 0 is shown in the insight message on the timings tab. (USPARK-647)

  • Jobs getting falsely labeled as a Tez App, for Oozie Sqoop and Shell actions. (PLATFORM-2403)

  • Spark apps running in Oozie workflow is not visible under Oozie workflow in Unravel UI. (PLATFORM-2746)

  • The new user interface (UI) can be accessed only from Chrome.


For support issues, contact Unravel Support