We use posix_fadvise in a bunch of places, and in stereotypical Cassandra fashion no comments were provided.
There is a check the OS is Linux (okay, a start) but it turns out the behavior of providing a length of 0 to posix_fadvise changed in some 2.6 kernels. We don't check the kernel version -- or even note it. What is the *expected* outcome of our use of posix_fadvise -- not what does it do or not do today -- but what problem was it added to solve and what's the expected behavior regardless of kernel versions. best, kjellman Sent from my iPhone