fix(bloomstore): Keep synchronous state between cache and fs on entry eviction #11880
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Signed-off-by: Christian Haudum <[email protected]>
Signed-off-by: Christian Haudum <[email protected]>
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Signed-off-by: Christian Haudum <[email protected]>
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What this PR does / why we need it:
removeBlockDirectoryis called by the cache when an item is evicted.The cache entry is passed to this function. The function needs to evict/invalidate the entry synchronously, otherwise we could get a cache race condition where the item is already evicted from the cache, but the underlying directory isn't.
However, instead of removing the directory immediately, the function only renames it, so existing readers can still access the files. The actual cleanup of the directory happens asynchronously once the readers count is zero.