http://permalink.gmane.org/gmane.comp.db.cassandra.user/14225
but given https://issues.apache.org/jira/browse/CASSANDRA-2868 and me thinking 2 secs longer I guess it was the leaked native memory from gc inspector that has been swapped out. (I didn't believe that mlockall is broken but at that time no one could explain why the process was swapping anyway) On Jul 15, 2011, at 6:04 PM, Peter Schuller wrote: >> Also our experience shows that the jna call does not prevent swapping so the >> general advice is disable swap. > > That sounds extremely non-likely as it would imply the kernel fails to > honor a successful mlockall(), unless other processes on the same > machine are being swapped out. Did the process really have permission > to do the mlockall()? > > (Not that I disagree in any way that swap should be disabled, +1 on that.) > > -- > / Peter Schuller (@scode on twitter)
