I had a case where a few indexes became corrupted. In setting up a test
where I do a "analyze index validate structure online" , I have not been
able to get it to run in parallel.
The problem is some of these indexes are huge, and take up to 20 days to
run even on a very fast 19c cluster with flash storage. I can run 50
different alter table validate structure, but it still takes 20 days for
the largest indexes.
So my challenge has been finding a way to run in parallel mode , and all my
extensive testing has produced negative results- its always single
threaded. The following never changes the behavior:
-alter table or index or both to parallel=48
-session settings to force parallel
-sql hints to do parallel.
Does anybody have a way to run "analyze index XX validate structure
online/offline" to get that operation to run with parallel / PQ ?
Thx- Jon
