On Mon, 07 Feb 2011 14:04:46 -0500 Jeffrey Altman <[email protected]> wrote:
> In the dropbox case the client has no need to read anything from the > server. An application writes bytes 0-15 to a dropbox file, then waits 5 minutes, and continues writing bytes 16-31. In those few minutes, bytes 0-15 were flushed to the fileserver because of cache pressure, and later were also removed from the cache due to cache eviction pressure. Now, to write bytes 16-31, the Unix CM needs bytes 0-15, because it writes to the fileserver in chunksize-sized chunks. So, it needs to read bytes 0-15 again before it can do the write. That example is obviously completely made up, but I believe this was the scenario Derrick was talking about in the gerrit commit message. So, I am assuming it is not impossible, though I've never tried to trigger anything like that so I'm not really sure at all. -- Andrew Deason [email protected] _______________________________________________ OpenAFS-devel mailing list [email protected] https://lists.openafs.org/mailman/listinfo/openafs-devel
