On 10/20/2015 9:19 AM, Eric Torti wrote: > I had a 52GB solr-8983-console.log on my Solr 5.2.1 Amazon Linux > 64-bit box and decided to `cat /dev/null > solr-8983-console.log` to > free space. > > The weird thing is that when I checked Sematext I noticed the OS had > freed a lot of memory at the same exact instant I did that.
On that memory graph, the legend doesn't indicate which of the graph colors represent each of the four usage types at the top -- they all have blue checkboxes, so I can't tell for sure what changed. If the number that dropped is "cached" (which I think is likely) then everything is working exactly as it should. The OS had simply cached a large chunk of the logfile, exactly as it is designed to do, and once the file was deleted, it stopped reserving that memory and made it available. https://en.wikipedia.org/wiki/Page_cache Thanks, Shawn
