Hi, please send us result of: nodetool help sjk On Mon, Mar 18, 2019 at 9:28 AM ishib...@gmail.com <ishib...@gmail.com> wrote:
> Hi! > > This is interesting note for me. > > We have C* 3.11.1, but ‘sjk’ still unexpected parameters for nodetool > utility. > > Am I missed something or ‘sjk’ available as separate rpm-package? > > > > Best regards, Ilya > > > ---------------- > Тема: Re: read request is slow > От: Dieudonné Madishon NGAYA > Кому: user@cassandra.apache.org > Копия: > > > > For your information,since cassandra 3.0, it includes ttop and other > options inside sjk > nodetool sjk > > https://docs.datastax.com/en/cassandra/3.0/cassandra/tools/toolsSjk.html > > > > > > > > *From:* Jon Haddad [mailto:j...@jonhaddad.com] > *Sent:* Saturday, March 16, 2019 5:25 PM > *To:* user@cassandra.apache.org > *Subject:* Re: read request is slow > > > > I'm guessing you're getting 100MB from the comments in the config, which > suggest 100MB per core. This advice is pretty outdated and should be > updated. > > > > I'd use 8GB total heap and 4GB new gen as a starting point. I really > suggest reading up on how GC works, I linked to a post in an earlier email. > > > > These are the flags you'd need to set in your jvm.options, or > jvm-server.options depending on the version you're using: > > > > -Xmx8G > > -Xms8G > > -Xmn4G > > > > 1 core is probably going to be a problem, Cassandra creates a lot of > threads and relies on doing work concurrently. I wouldn't use less than 8 > cores in a production environment. > > > ----------------------------------- > This message and any attachment are confidential and may be privileged or > otherwise protected from disclosure. If you are not the intended recipient > any use, distribution, copying or disclosure is strictly prohibited. If you > have received this message in error, please notify the sender immediately > either by telephone or by e-mail and delete this message and any attachment > from your system. Correspondence via e-mail is for information purposes > only. AO Raiffeisenbank neither makes nor accepts legally binding > statements by e-mail unless otherwise agreed. > ----------------------------------- > > --------------------------------------------------------------------- To > unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org For additional > commands, e-mail: user-h...@cassandra.apache.org -- Best regards _____________________________________________________________ [image: https://www.facebook.com/DMN-BigData-371074727032197/?modal=admin_todo_tour] <https://www.facebook.com/DMN-BigData-371074727032197/?modal=admin_todo_tour> <https://twitter.com/dmnbigdata> <https://www.instagram.com/> <https://www.linkedin.com/in/dngaya/> *Dieudonne Madishon NGAYA* Datastax, Cassandra Architect *P: *7048580065 *w: *www.dmnbigdata.com *E: *dmng...@dmnbigdata.com *Private E: *dmng...@gmail.com *A: *Charlotte,NC,28273, USA
