[SVS] Implement 2-stage backend SVS index initialization #903
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Purpose: prevent long time SVS Tiered index lock at initialization time. Logic: First stage: create `svs::...::MutableVamanaIndex` instance with R/O shared lock Second stage: set `svs::...::MutableVamanaIndex` created before under R/W unique lock
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Codecov Report❌ Patch coverage is
Additional details and impacted files@@ Coverage Diff @@
## main #903 +/- ##
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+ Coverage 97.09% 97.10% +0.01%
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Files 129 129
Lines 7493 7529 +36
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+ Hits 7275 7311 +36
Misses 218 218 ☔ View full report in Codecov by Sentry. 🚀 New features to boost your workflow:
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Purpose: prevent long time SVS Tiered index lock at initialization time.
Logic:
svs::...::MutableVamanaIndexinstance with R/O shared locksvs::...::MutableVamanaIndexcreated before under R/W unique lockWhich issues this PR fixes
Main objects this PR modified
createImpl()andsetImpl()createImpl()under shared lock andsetImpl()under unique lock if backend index is empty.Mark if applicable