what value would you suggest to use?
without crcSalt, splunk will ignore the file.log 2nd time it sees it because they have the same CRC value.
From http://docs.splunk.com/Documentation/Splunk/6.4.1/Admin/Inputsconf
(Splunk only performs CRC checks against, by default, the first 256 bytes
a file. This behavior prevents Splunk from indexing the same file twice,
even though you may have renamed it -- as, for example, with rolling log
files. However, because the CRC is based on only the first few lines of
the file, it is possible for legitimately different files to have matching
CRCs, particularly if they have identical headers.)
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