[8.x] Cleanup swapSourceProvider(...) workaround (#118480)#120095
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martijnvg merged 1 commit intoelastic:8.xfrom Jan 15, 2025
Merged
[8.x] Cleanup swapSourceProvider(...) workaround (#118480)#120095martijnvg merged 1 commit intoelastic:8.xfrom
martijnvg merged 1 commit intoelastic:8.xfrom
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This reverts the workaround that was introduced in elastic#117792 to avoid EOF error when an es|ql query uses multiple runtime fields that fallback to source when source mode is synthetic. This is now covered by the ReinitializingSourceProvider workaround that covers that and the concurrency problem. With this change, the main code for the required workarounds are now in isolated in ReinitializingSourceProvider. Additional another in `ReinitializingSourceProvider` was fixed, the issue was the lastSeenDoc field was reused overwritten by different threads, the latest commit moves the lastSeenDoc field to PerThreadSourceProvider so that each thread gets its own place to store the last seen docid.
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Backports the following commits to 8.x: