Lambda Synchronizer
In OMN 7.0 the synchronizer is available in a second implementation built on AWS Lambda,
activated with synchronizer.mode=lambda. Instead of generating previews in the on-prem
synchronizer process, the OMN WebApp dispatches a job per preview to a queue, and a set of
Lambda functions renders them and reports the results back.
That changes the custom preview extension point: where the on-prem synchronizer runs a local shell script that renders the file itself, the Lambda synchronizer evaluates a JavaScript script that only declares which previews to produce, and a Lambda does the rendering — either one of the standard preview Lambdas or a project-specific one.
Further information
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Custom Preview Generation with the Lambda Synchronizer — configuring a custom preview type and writing the script that declares its previews.
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Project-specific Custom Preview Lambda — implementing, deploying and registering a project-specific Lambda for previews the standard tools cannot produce.