On 10/14/10 12:44 PM, B. Todd Burruss wrote: > >> INFO 16:46:06,875 DiskAccessMode 'auto' determined to be mmap, >> indexAccessMode is mmap
thx, it does say that in the log, but that is probably just a reflection of whatever is read from cassandra.yaml.
Having read the relevant code, the log message is from where Cassandra picks how to try to write and sets the relevant internal variables. It seems unlikely to me that Cassandra would work at all if it was trying to use mmap (as it is) and somehow mmapping was failing, but I am not an expert on how Cassandra might handle this case.
=Rob
