Re: benefits oh HBase over Cassandra
Messenger can allow for some losses in degenerate infra cases, given a given infra footprint. Also some ability to handle scale up faster as demand increases, peak loads, etc. It therefore becomes a use case specific optimization. Also hBase can run in Hadoop more easily, leveraging blobs (HDFS), etc. So, depends on your use case. <==> Be the reason someone smiles today. Or the reason they need a drink. Whichever works. *Daemeon C.M. Reiydelle* *email: daeme...@gmail.com * *San Francisco 1.415.501.0198/London 44 020 8144 9872/Skype daemeon.c.m.reiydelle* On Fri, Aug 24, 2018 at 10:40 PM Vitaliy Semochkin wrote: > Thank you very much for fast reply, Dinesh! > I was under impression that with tunable consistency Cassandra can > act as CP (in case it is needed), e.g by setting ALL on both reads > and writes. > Do you agree with this statement? > > PS Are there any other benefits of HBase you have found? I'd be glad > to hear usecases list. > > > > On Sat, Aug 25, 2018 at 12:44 AM dinesh.jo...@yahoo.com.INVALID > wrote: > > > > I've worked with both databases. They're suitable for different > use-cases. If you look at the CAP theorem; HBase is CP while Cassandra is a > AP. If we talk about a specific use-case, it'll be easier to discuss. > > > > Dinesh > > > > > > On Friday, August 24, 2018, 1:56:31 PM PDT, Vitaliy Semochkin < > vitaliy...@gmail.com> wrote: > > > > > > Hi, > > > > I read that once Facebook chose HBase over Cassandra for it's messenger, > > but I never found what are the benefits for HBase over Cassandra, > > can someone list, if there are any? > > > > Regards, > > Vitaliy > > > > - > > 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 > >
Re: benefits oh HBase over Cassandra
Thank you very much for fast reply, Dinesh! I was under impression that with tunable consistency Cassandra can act as CP (in case it is needed), e.g by setting ALL on both reads and writes. Do you agree with this statement? PS Are there any other benefits of HBase you have found? I'd be glad to hear usecases list. On Sat, Aug 25, 2018 at 12:44 AM dinesh.jo...@yahoo.com.INVALID wrote: > > I've worked with both databases. They're suitable for different use-cases. If > you look at the CAP theorem; HBase is CP while Cassandra is a AP. If we talk > about a specific use-case, it'll be easier to discuss. > > Dinesh > > > On Friday, August 24, 2018, 1:56:31 PM PDT, Vitaliy Semochkin > wrote: > > > Hi, > > I read that once Facebook chose HBase over Cassandra for it's messenger, > but I never found what are the benefits for HBase over Cassandra, > can someone list, if there are any? > > Regards, > Vitaliy > > - > 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
Re: benefits oh HBase over Cassandra
At the time that Facebook chose HBase, Cassandra was drastically less mature than it is now and I think the original creators had already left. There were already various Hadoop variants running for data analytics etc, so lots of operational and engineering experience around it available. So, probably not a useful example to use in a technical comparison between current HBase and current Cassandra. Also, FB has since abandoned HBase for messenger in favor of MyRocks. On Fri, Aug 24, 2018 at 5:43 PM, dinesh.jo...@yahoo.com.INVALID < dinesh.jo...@yahoo.com.invalid> wrote: > I've worked with both databases. They're suitable for different use-cases. > If you look at the CAP theorem; HBase is CP while Cassandra is a AP. If we > talk about a specific use-case, it'll be easier to discuss. > > Dinesh > > > On Friday, August 24, 2018, 1:56:31 PM PDT, Vitaliy Semochkin < > vitaliy...@gmail.com> wrote: > > > Hi, > > I read that once Facebook chose HBase over Cassandra for it's messenger, > but I never found what are the benefits for HBase over Cassandra, > can someone list, if there are any? > > Regards, > Vitaliy > > - > To unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org > For additional commands, e-mail: user-h...@cassandra.apache.org > >
Re: benefits oh HBase over Cassandra
I've worked with both databases. They're suitable for different use-cases. If you look at the CAP theorem; HBase is CP while Cassandra is a AP. If we talk about a specific use-case, it'll be easier to discuss. Dinesh On Friday, August 24, 2018, 1:56:31 PM PDT, Vitaliy Semochkin wrote: Hi, I read that once Facebook chose HBase over Cassandra for it's messenger, but I never found what are the benefits for HBase over Cassandra, can someone list, if there are any? Regards, Vitaliy - To unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org For additional commands, e-mail: user-h...@cassandra.apache.org
