Re: GC Tuning https://thelastpickle.com/blog/2018/04/11/gc-tuning.html

"It depends" on your version and heap size but G1 is easier to get right so probably wanna stick with that unless you are using small heaps or really interested in tuning it (likely for massively smaller gains then tuning your data model). There is no GC algo that is strictly better than others in

Ram & Space...

What are minimum and recommended ram and space requirements to run Cassandra in AWS? Every like 24 hours Cassandra stops working. Even though the service is active, it’s dead and non responsive until I restart the service. Top shows %MEM slowly creeping upwards. Yesterday it showed 75%.  In the

Re: Cassandra Repair question

Yes - agree with Sergio. For the majority of use cases, the best practice for repair is to use Cassandra Reaper. > On Oct 19, 2019, at 12:06 am, Sergio wrote: > > Use Cassandra reaper > > On Fri, Oct 18, 2019, 10:12 PM Krish Donald > wrote: > Thanks Manish, > >

Re: loosing data during saving data from java

If the writes are being coming fast enough that the commitlog cant keep up it will block applying mutations the the memtable (even with periodic once hit >1.5x flush time). Things will queue up and possibly timeout but they will not be acknowledged until applied. If you do it enough fast enough

Re: Cassandra Repair question

Use Cassandra reaper On Fri, Oct 18, 2019, 10:12 PM Krish Donald wrote: > Thanks Manish, > > What is the best and fastest way to repair a table using nodetool repair ? > We are using 256 vnodes . > > > On Fri, Oct 18, 2019 at 10:05 PM manish khandelwal < > manishkhandelwa...@gmail.com> wrote: >

RE: loosing data during saving data from java

Thank Jeff  but if you save several data to fast with cassandra repository and if cassandra doesn't have the same speed and inserts more slowly. What is the bevahior ? cassandra store the overflow in a additionnal buffer ? No data can be lost on the cassandra's side ? Thank a lot. Adrian