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For a connector, even a read-only connector, some properties are computed and stored. These include a modification date and a checksum (if enabled) which is only recomputed when the file is altered. If it is not desirable or possible to store these properties on the same file system path that is being projected over you may specify an alternate location (propertiesDirectoryPath) in which those properties will be cached. This is especially important when using checksums in directories of large files.
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