Details
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Improvement
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Status: Closed
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Major
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Resolution: Fixed
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None
Description
The DocumentNodeStore currently uses a single persistent cache for all types (node, nodeChildren, diff, etc.). With this setup it is not possible to assign a specific amount of disk space for some cache type(s). If there are many inserts for one cache type, entries of another type may become unavailable. In practice this can be a problem for the local_diff cache entries that are important for efficient node state comparison.
Separating the diff and local_diff cache entries would also allow for different configuration options like compression and different behaviour when the async write back queue is full.
