Your JDK parameters and configs. Heap configs set in hbase-env.sh etc. The hbase-site.xml details reltaed to memstore and cache.
Regards Ram On Thu, Dec 7, 2017 at 12:07 PM, Lalit Jadhav <[email protected]> wrote: > Hello, > > Yes, it is an interesting case. > Ram, Sorry I cannot share whole details, but let me know params you need. > > > On Thu, Dec 7, 2017 at 11:58 AM, ramkrishna vasudevan < > [email protected]> wrote: > > > 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 <[email protected] > > > > 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" < > > > [email protected]> 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 < > > [email protected] > > > > > > > > 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 < > > > > > [email protected]> 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 < > > > > [email protected] > > > > > > > > > > > > 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 < > > > > > [email protected] > > > > > > > > > > > > > > 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. > > > > > > > > > > > > > > > > > > -- > Regards, > Lalit Jadhav > Network Component Private Limited. >
