I don have any idea now from this. Seems to be an interesting case since none of the users have reported such an issue. I need to try out this to ascertain what is really happening.
Can you paste your hbase-env.sh details and the hbase-site.xml just to be sure there is nothing overriding the configs? Regards Ram On Wed, Dec 6, 2017 at 5:41 PM, Lalit Jadhav <lalit.jad...@nciportal.com> wrote: > Are you sure the 16G taken up in the RAM is due to the region server? > :Yes > > Are you having any other cache configuration like bucket cache? > :No > > Are you allocating any Direct_memory for the region servers? > :No > > So when does this raise to 16G happen - is it after the regions are created > or even before them i.e just when you start the region server? > : Even before regions are created. > > Which version of hbase is it? > 1.1.2 > > On Dec 6, 2017 4:02 PM, "ramkrishna vasudevan" < > ramkrishna.s.vasude...@gmail.com> wrote: > > > Few more questions, > > Are you sure the 16G taken up in the RAM is due to the region server? Are > > you having any other cache configuration like bucket cache? > > Are you allocating any Direct_memory for the region servers? > > > > So when does this raise to 16G happen - is it after the regions are > created > > or even before them i.e just when you start the region server? Which > > version of hbase is it? > > > > Regards > > Ram > > > > On Wed, Dec 6, 2017 at 3:57 PM, Lalit Jadhav <lalit.jad...@nciportal.com > > > > wrote: > > > > > Hi Ramkrishna, > > > > > > Thanks for reply, > > > Right now I am not performing any operation on HBase(it is idle), > Still, > > > utilization is 16GB. But when I shut down them, It frees this memory. > > > > > > On Wed, Dec 6, 2017 at 2:41 PM, ramkrishna vasudevan < > > > ramkrishna.s.vasude...@gmail.com> wrote: > > > > > > > Hi Lalith > > > > > > > > Seems you have configured very minimum heap space. > > > > So when you say RAM size is increasing what are the operations that > > you > > > > are performing when the memory increases. I can see heap is only 1G > but > > > > still your memory is 16G.Are you sure that 16G is only due to Region > > > > servers? Are you having heavy writes or reads during that time. > > > > > > > > Regards > > > > Ram > > > > > > > > On Wed, Dec 6, 2017 at 2:31 PM, Lalit Jadhav < > > lalit.jad...@nciportal.com > > > > > > > > wrote: > > > > > > > > > Adding More info, > > > > > > > > > > Regions per region server : 13-15 Regions per RS > > > > > > > > > > memory region server is taking : 16GB > > > > > > > > > > Memstore size : 64 MB > > > > > > > > > > configured heap for Master : 1 GB > > > > > > > > > > configured heap for RegionServer : 1 GB > > > > > > > > > > On Tue, Dec 5, 2017 at 5:40 PM, Lalit Jadhav < > > > lalit.jad...@nciportal.com > > > > > > > > > > wrote: > > > > > > > > > > > Hello All, > > > > > > > > > > > > When we do any operations on the database(HBase), RegionServers > are > > > > > taking > > > > > > too much ram and not releases until we restart them. Is there any > > > > > parameter > > > > > > or property to release ram or to restrict RegionServers to take > > this > > > > much > > > > > > of memory? Help will be appreciated. > > > > > > > > > > > > -- > > > > > > Regards, > > > > > > Lalit Jadhav > > > > > > Network Component Private Limited. > > > > > > > > > > > > > > > > > > > > > > > > > > -- > > > > > Regards, > > > > > Lalit Jadhav > > > > > Network Component Private Limited. > > > > > > > > > > > > > > > > > > > > > -- > > > Regards, > > > Lalit Jadhav > > > Network Component Private Limited. > > > > > >
