[8.x] Use synthetic recovery source by default if synthetic source is enabled (#119110) #121760
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…ed (elastic#119110) We experimented with using synthetic source for recovery and observed quite positive impact on indexing throughput by means of our nightly Rally benchmarks. As a result, here we enable it by default when synthetic source is used. To be more precise, if `index.mapping.source.mode` setting is `synthetic` we enable recovery source by means of synthetic source. Moreover, enabling synthetic source recovery is done behind a feature flag. That would allow us to enable it in snapshot builds which in turn will allow us to see performance results in Rally nightly benchmarks. (cherry picked from commit 6a52675)
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@martijnvg I just had to re-enable tests that were disabled. After merging this I will do the same in |
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