Madhan Neethiraj created ATLAS-5290:
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Summary: Option to skip type initialization/updates during server
startup
Key: ATLAS-5290
URL: https://issues.apache.org/jira/browse/ATLAS-5290
Project: Atlas
Issue Type: Improvement
Components: atlas-core
Reporter: Madhan Neethiraj
During every startup, Atlas server loads type-definitions (entity,
releationship, classification, business metadata) files from json files and
updates its database when necessary. This mechanism is used to:
# initialize Atlas database in a fresh installation
# update type-definitions in Atlas database during upgrades, to reflect
changes in the newer version (like addition of entity types, attributes)
Initializing/updating of type-definitions introduces significant delay in every
startup of Atlas server - even though the definitions in json files change only
during upgrades. Atlas server should provide an option to skip
initialization/update of type-definitions - for example via a command-line
option.
It will be useful to support command-line option {{{}--run-mode{}}}, with one
of the following as valid values:
# {*}server{*}: skip type initialization/update - default value)
# {*}import-types{*}: initialize/update types in Atlas database from types in
json files and exit
This approach will enable addition of more modes like {{repair-index}} later.
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