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d3034e0fab
When repair writes a sstable to disk, we check if the sstable needs view update processing. If yes, the sstable will be placed into the staging dir for processing, with the _registration_sem semaphore to prevent too many pending unprocessed sstables. We have seen multiple cases in the field where view update processing is inefficient and way too slow which blocks the base table repair to finish on time. This patch increases the registration_queue_size to a bigger number to mitigate the problem that slow view update processing blocks repair. It is better to have a consistent base table + inconsistent view table than inconsistent base table + inconsistent view table. Currently, sstables in staging dir are not compacted. So we could not increase the _registration_sem with too big number to avoid accumulate too many sstables. The view_build_test.cc is updated to make the test pass. Closes #14241