CloverETL 4.0

Helping Developers Empower Business

Watch CloverETL 4.0 Overview Video

CloverETL 4.0 introduces subgraphs, a powerful way of creating user-defined components that let you hide complexity and design data transformations on a much higher level, using business components rather than low-level data operations. Also, the new features that support subgraphs are very useful on their own – automatic metadata propagation reduces the need to manage metadata in transformations, while the execution view panel gives you easier access to debug information for faster development.

Released August 17, 2015
  • Production
Recent Releases
4.9.1 Aug 14, 2018
4.9.0 Jul 23, 2018
4.8.3 Jul 17, 2018
4.7.1 Nov 28, 2017
4.6.1 July 19, 2017
4.5.0 Mar 14, 2017

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  • Designer
  • Server
  • Major New Feature


Reduce complexity, create business-level components, share your expertise. Create new components without programming. Wrap complex functionality into a simple interface.

Create new data sources and targets

Embed connections, metadata and other properties into subgraphs and share them with others.

Focus on business logic

Create a library of your business logic components, rather than low-level data processing functions.

Reduce complexity

Wrap logical parts of large transformations together into steps that you can easily drill into.

Share your expertise

Solve hard problems and share the solution with others. Everyone can contribute.

  • New Feature

Automatic Metadata Propagation

Metadata are now automatically
assigned to edges when possible.

Save time and effort

No need to assign metadata to every edge – they are determined based on the component and its surroundings.

Reuse transformations

Changes automatically propagate through complex transformations, making them easier to reuse.

Distribute with subgraphs

Metadata embedded into subgraphs are readily available in upstream transformations, with no linking needed.

  • New Feature

Execution View Panel

View execution history and visually access debugging data for subgraphs and jobflows.

Real-time tracking

Watch data in real time as it flows through your transformation or jobflow.

Access stored debug data

Just double-click any layer of subgraphs or nested jobflow, and inspect collected debug data.

Troubleshoot finished runs

Connect to jobs executed by the Server and visually inspect what data flowed through successfully, in order to find potential problem areas.

  • New Feature

Tableau TDE Support

Create Tableau Extract files (TDE), directly enabling rapid data preparation and development.

Detailed list of improvements and fixes

ETL Developers (This item is most useful for developers; it either brings new functionality for transforming data or brings optimizations)

Administrators (This item is an improvement or feature that will help setup, install, administer and manage the application)

Support (This item helps staff supporting the production operation to identify potential problems or avoid such)


Improvements - Designer   [  See All  |  Hide All  ]

Improved XSD metadata extraction wizard Improvement CLO-6720 4.0.8

Fixes - Engine   [  See All  |  Hide All  ]

Fixed - SpreadsheetDataWriter - improve hyperlink performance Fix CLO-7116 4.0.8
Fixed - SpreadsheetDataWriter - stream mode creates invalid xlsx Fix Compatibility CLO-7122 4.0.8
Fixed - SpreadsheetDataWriter - cells are styled as hyperlinks when they shouldn't be Fix CLO-7268 4.0.8
Fixed - LDAP components can't handle values with forward slashes Fix CLO-7483 4.0.8
Fixed - BufferedFastPropagateEdge does not correctly manipulate with big records Fix CLO-7165 4.0.8
Fixed - DBOutputTable - 'Returning' does not return input fields unless some fields are generated in db Fix CLO-5510 4.0.8
Fixed - MSSQLDataWriter corrupts date format defined on incoming metadata Fix CLO-5494 4.0.8
Fixed - Incorrect handling of escape sequences in smb protocol File URL Fix CLO-3052 4.0.8
Fixed - MongoDBReader placeholders not working in Projection and Order by Fix CLO-7315 4.0.8
Fixed - RETURNING clause does not work with INSERT on PostgreSQL Fix CLO-6726 4.0.8

Fixes - Designer   [  See All  |  Hide All  ]

Fixed - SQL validation doesn't work when SQL code is valid Fix CLO-7240 4.0.8
Fixed - XSD metadata extraction wizard crashes with GC overhead limit exceeded Fix CLO-6721 4.0.8
Fixed - XSD Metadata extraction does not extract all elements Fix CLO-6685 4.0.8

Fixes - Server   [  See All  |  Hide All  ]

Fixed - NPE when executing a launch service before Server is fully initialized Fix CLO-7344 4.0.8
Fixed - Graph event listener is executed before Server is fully initialized Fix CLO-7044 4.0.8
Fixed - Cron expression editor corrupts the expression Fix CLO-6507 4.0.8
Fixed - File event listener sets wrong value to EVENT_FILE_PATTERN Fix Compatibility CLO-6964 4.0.8








4.0.0 (long list)