The patch fixes two problems. 1. Memory order problem accessing _last_patch_processed_finished and in_flight, actually _last_patch_processed_finished is redundant, so the patch removes it. 2. synchronization in join on cid. Fix for #8725.
The patch fixes two problems. 1. Memory order problem accessing _last_patch_processed_finished and in_flight, actually _last_patch_processed_finished is redundant, so the patch removes it. 2. synchronization in join on cid. Fix for #8725.