Drop indices concurrently on background updates #18091
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Otherwise these can race with other long running queries and lock out all other queries.
devonh
approved these changes
Jan 17, 2025
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Otherwise these can race with other long running queries and lock out all other queries.
This caused problems in v1.22.0 as we added an index to
eventstable in #17948, but that got interrupted and so next time we ran the background update we needed to delete the half-finished index. However, that got blocked behind some long running queries and then locked other queries out (stopping workers from even starting).