Michael is correct. More information available about swap value on wikipedia: http://en.wikipedia.org/wiki/Swappiness
2013/5/16 Michael Segel <[email protected]> > Going from memory, the swap value setting to 0 is a suggestion. You may > still actually swap, but I think its a 'last resort' type of thing. > > When you look at top, at the top of the page, how much swap do you see? > > > On May 16, 2013, at 1:43 PM, Viral Bajaria <[email protected]> > wrote: > > >> Have you checked your HBase environment? I think it perhaps come from: > >> 1) System uses more swap frequently when your continue to execute Gets > >> operation? > >> > > > > I have set swap to 0. AFAIK, that's a recommended practice. Let me know > if > > that should not be followed for nodes running HBase. > > > > > >> 2) check the setting "hfile.block.cache.size" in your hbase-site.xml. > >> > > > > It's the default i.e. 0.25 > >
