I just checked our monitoring and we are measuring MemAvailable from
/proc/meminfo which is consistent with available memory reported by free and
top.
Thanks for pointing that out. Would be nice if that would have been the
problem...
Cheers,
Matthias
Aug 27, 2018, 2:11 PM by k...@instaclustr.
I'm thinking it's unlikely that top is lying to you. Are you sure that
you're measuring free memory versus available memory? Cassandra will
utilise the OS page cache heavily, which will cache files in memory but
leave the memory able to be reclaimed if needed. Have you checked the
output of free? I
