There are not even a 100ms GC pause in that, are you certain theres a problem?
> On Jun 13, 2018, at 3:00 PM, rajpal reddy <rajpalreddy...@gmail.com> wrote: > > Thanks Chris I did attached the gc logs already. reattaching them > now<gc.log.1.current>. > > it started yesterday around 11:54PM >> On Jun 13, 2018, at 3:56 PM, Chris Lohfink <clohf...@apple.com> wrote: >> >>> What is the criteria for picking up the value for G1ReservePercent? >> >> >> it depends on the object allocation rate vs the size of the heap. Cassandra >> ideally would be sub 500-600mb/s allocations but it can spike pretty high >> with something like reading a wide partition or repair streaming which might >> exceed what the g1 ygcs tenuring and timing is prepared for from previous >> steady rate. Giving it a bigger buffer is a nice safety net for allocation >> spikes. >> >>> is the HEAP_NEWSIZE is required only for CMS >> >> >> it should only set Xmn with that if using CMS, with G1 it should be ignored >> or else yes it would be bad to set Xmn. Giving the gc logs will give the >> results of all the bash scripts along with details of whats happening so its >> your best option if you want help to share that. >> >> Chris >> >>> On Jun 13, 2018, at 12:17 PM, Subroto Barua <sbarua...@yahoo.com.INVALID> >>> wrote: >>> >>> Chris, >>> What is the criteria for picking up the value for G1ReservePercent? >>> >>> Subroto >>> >>>> On Jun 13, 2018, at 6:52 AM, Chris Lohfink <clohf...@apple.com> wrote: >>>> >>>> G1ReservePercent >>> >>> --------------------------------------------------------------------- >>> To unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org >>> For additional commands, e-mail: user-h...@cassandra.apache.org >>> >> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org >> For additional commands, e-mail: user-h...@cassandra.apache.org >> > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org > For additional commands, e-mail: user-h...@cassandra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org For additional commands, e-mail: user-h...@cassandra.apache.org
