RunInMemory == true Yet Still Writing Files to Disk

[João Bragança]

With the following code

            _documentStore = new EmbeddableDocumentStore

            {

                RunInMemory = true,

                Configuration =

                {

                    Settings =

                    {

                        ["Raven/Licensing/AllowAdminAnonymousAccessForCommercialUse"] = "true",

                        ["Raven/License"] = GetRavenLicense()

                    }

                },

                Conventions =

                {

                    AcceptGzipContent = false

                },

                DataDirectory = Path.Combine(ravenDbDataDirectory.FullName, "system")

            };

I would expect ravendb not to put anything on disk. However I see lots of files named like ravendb-59460-1-compression.buffers in the working directory. Is this expected?

[Oren Eini (Ayende Rahien)]

Yes, they aren't actually written to disk most of the time, but that allows us to use the same codepath all the time, and since this is mmap, you odn't pay the perf costs

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