No worries, I don't mind being confused with Erick ;)
On Feb 9, 2018 9:16 PM, "Susheel Kumar" <susheel2...@gmail.com> wrote:
> Sorry, I meant Emir.
> On Fri, Feb 9, 2018 at 3:15 PM, Susheel Kumar <susheel2...@gmail.com>
> > Thanks, Shawn, Eric. I see that same using swapon -s. Looks like during
> > the OS setup, it was set as 2 GB (Solr 6.0) and other 16GB (Solr 6.6)
> > Our 6.0 instance has been running since 1+ year but recently our monit
> > started reporting swap usage above 30% and Solr dashboard showing the
> > same. I haven't been able to find what causes / why Solr is using the
> > space. The index size is well within memory size to fit and we have
> > the index size on our performance test machines but there is no usage of
> > swap space.
> > Thanks,
> > Susheel
> > On Wed, Feb 7, 2018 at 3:09 PM, Shawn Heisey <apa...@elyograg.org>
> >> On 2/7/2018 12:01 PM, Susheel Kumar wrote:
> >>> Just trying to find where do we set swap space available to Solr
> >>> process. I
> >>> see in our 6.0 instances it was set to 2GB on and on 6.6 instances its
> >>> set
> >>> to 16GB.
> >> Solr has absolutely no involvement or control over swap space. Neither
> >> does Java. This is a function of your operating system's memory
> >> management, and is typically set up when you first install your OS.
> >> https://www.linux.com/news/all-about-linux-swap-space
> >> https://en.wikipedia.org/wiki/Paging#Windows_NT
> >> If your system is using swap space, it's a strong indication that you
> >> don't have enough memory installed. If any of the memory that Solr
> uses is
> >> swapped out to disk, Solr performance is going to be REALLY bad.
> >> Thanks,
> >> Shawn