Skip fuser/lsof check when uploader is marked as immediate #1909
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One of the slower/expensive parts of the uploader right now when there are many files is checking if the files are still in use. The
immediate
flag is used to signify that the file is ready for upload and done being written to. If this flag is set, skip the lsof/fuser check. SingularityExecutor uses this flag on clean shutdown, so this should alleviate the need for the check in the majority of cases