| [[HopvsKettle]] |
| :imagesdir: ../assets/images |
| |
| = Hop vs Kettle - A Quick Comparison |
| |
| == Concepts |
| |
| [width=90%", cols="6,2,2", options="header"] |
| |=== |
| |Terminology|Kettle|Hop |
| |Parallel scalable data pipeline|Transformation|Pipeline |
| |An operation in a parallel pipeline|Step|Transform |
| |Sequential series of actions|Job|Workflow |
| |An action in a workflow|Job Entry|Action |
| | Shared metadata container|Metastore|Hop Metadata |
| |The graphical user interface|Spoon|Hop Gui |
| |Script to run data pipelines|Pan|Hop Run |
| |Script to run workflows|Kitchen|Hop Run |
| |Server for remote execution|Carte|Hop Server |
| |Script for configuration|-|Hop Config |
| |=== |
| |
| == Configuration |
| |
| [width="90%", cols="2,3,3", options="header"] |
| |=== |
| |Configuration|Kettle|Hop |
| |System variables|${KETTLE_HOME}/.kettle/kettle.properties|${HOP_CONFIG_FOLDER}/hop-config.json or ./config/hop-config.json |
| |GUI preferences (fonts, colors, preferences…)|${KETTLE_HOME}/.kettle/kettle.properties|${HOP_CONFIG_FOLDER}/hop-config.json or ./config/hop-config.json |
| |Language choice|${KETTLE_HOME}/.kettle/.languageChoice|${HOP_CONFIG_FOLDER}/hop-config.json or ./config/hop-config.json |
| |Shared objects|${KETTLE_HOME}/.kettle/shared.xml|All stored in Hop shared metadata |
| |GUI usage information|${KETTLE_HOME}/.kettle/kettle.properties|${HOP_AUDIT_FOLDER}/<project>/ |
| |Shared metadata|${PENTAHO_METASTORE_FOLDER} or ${HOME}/.pentaho/metastore|${HOP_METADATA_FOLDER} or ${HOP_CONFIG_FOLDER}/metadata |
| |Environment/Project configurations|${KETTLE_HOME}/.kettle/environment/metastore|${HOP_CONFIG_FOLDER}/hop-config.json or ./config/hop-config.json |
| |=== |
| |
| == Engines |
| |
| [width="90%", cols="70%,15%,15%", options="header"] |
| |=== |
| |Engine|Kettle|Hop |
| |Unit Testing|Plugin|Yes |
| |Apache Spark Support|No (PDI EE only)|Yes (Beam) |
| |Apache Flink Support|No|Yes (Beam) |
| |Google Cloud DataFlow Support|No|Yes (Beam) |
| |=== |
| |
| == Features |
| |
| [width="90%", cols="70%,15%,15%", options="header"] |
| |=== |
| |Feature|Kettle|Hop |
| |Projects and Lifecycle Configuration |No|Yes |
| |Search Information in projects and configurations|No|Yes |
| |Configuration management through UI and command line|No|Yes |
| |Standardized shared metadata|No|Yes |
| |Pluggable runtime engines|No|Yes |
| |Advanced GUI features: memory, native zooom, ...|No|Yes |
| |Metadata Injection|Yes|Yes (most transforms) |
| |Mapping (sub-transformation/pipeline|Yes|Yes(simplified) |
| |Web Interface|WebSpoon|HopWeb (in progress) |
| |APL 2.0 license compliance|LGPL doubts regarding pentaho-metastore library|Yes |
| |Pluggable metadata objects|No|Yes |
| |GUI plugin architecture|XUL based (XML)|Java annotations |
| |=== |
