Nodetool repair multiple dc

2018-04-12 Thread Abdul Patel
Hi All, I have 18 node cluster across 3 dc , if i tey to run incremental repair on singke node it takes forever sometome 45 to 1hr and sometime times out ..so i started running "nodetool repair -dc dc1" for each dc one by one ..which works fine ..do we have an better way to handle this? I am

Re: Sorl/DSE Spark

2018-04-12 Thread Jeff Jirsa
Pretty sure Ben meant that datastax produces DSE, not Cassandra, and since the questions specifically mentions DSE in the subject (implying that the user is going to be running either solr or spark within DSE to talk to cassandra), Ben’s recommendation seems quite reasonable to me. -- Jeff

Re: Sorl/DSE Spark

2018-04-12 Thread Niclas Hedhman
Ben, 1. I don't see anything in this thread that is DSE specific, so I think it belongs here. 2. Careful when you say that Datastax produces Cassandra. Cassandra is a product of Apache Software Foundation, and no one else. You, Ben, should be very well aware of this, to avoid further trademark

Re: Cssandra acid compliance?

2018-04-12 Thread Jeff Jirsa
May see more isolation for our atomic operations with tickets like (for example) https://issues.apache.org/jira/browse/CASSANDRA-7056 I don't know of any foreign key tickets off the top of my head, and I'm almost positive nobody plans on working on that type of concept soon. On Thu, Apr 12,

Cssandra acid compliance?

2018-04-12 Thread Abdul Patel
As mongodb is coming up acid compliance , do we see cassnadra bringung this to table ? Also one brimgs in this , how it will compensate on performance and other factors? Also any chance to bringe in relational constraints and foreign key like cockroach db ?

Re: Latest version and Features

2018-04-12 Thread Abdul Patel
Will driver upgrade is required if i move to 3.11.2 from 3.1.0? 3.x drivers should work right? On Thursday, April 12, 2018, Carlos Rolo wrote: > Thanks for the heads-up. I will update the post. > > Regards, > > Carlos Juzarte Rolo > Cassandra Consultant / Datastax Certified

Re: Sorl/DSE Spark

2018-04-12 Thread Ben Bromhead
Folks this is the user list for Apache Cassandra. I would suggest redirecting the question to Datastax the commercial entity that produces the software. On Thu, Apr 12, 2018 at 9:51 AM vincent gromakowski < vincent.gromakow...@gmail.com> wrote: > Best practise is to use a dedicated DC for

about the tombstone and hinted handoff

2018-04-12 Thread Jinhua Luo
Hi All, In the doc: https://docs.datastax.com/en/cassandra/3.0/cassandra/dml/dmlAboutDeletes.html It said "When an unresponsive node recovers, Cassandra uses hinted handoff to replay the database mutationsthe node missed while it was down. Cassandra does not replay a mutation for a tombstoned

Re: Sorl/DSE Spark

2018-04-12 Thread vincent gromakowski
Best practise is to use a dedicated DC for analytics separated from the hot DC. Le jeu. 12 avr. 2018 à 15:45, sha p a écrit : > Got it. > Thank you so for your detailed explanation. > > Regards, > Shyam > > On Thu, 12 Apr 2018, 17:37 Evelyn Smith,

Re: Sorl/DSE Spark

2018-04-12 Thread sha p
Got it. Thank you so for your detailed explanation. Regards, Shyam On Thu, 12 Apr 2018, 17:37 Evelyn Smith, wrote: > Cassandra tends to be used in a lot of web applications. It’s loads are > more natural and evenly distributed. Like people logging on throughout the > day.

Re: Sorl/DSE Spark

2018-04-12 Thread Evelyn Smith
Cassandra tends to be used in a lot of web applications. It’s loads are more natural and evenly distributed. Like people logging on throughout the day. And people operating it tend to be latency sensitive. Spark on the other hand will try and complete it’s tasks as quickly as possible. This

Re: Latest version and Features

2018-04-12 Thread Carlos Rolo
Thanks for the heads-up. I will update the post. Regards, Carlos Juzarte Rolo Cassandra Consultant / Datastax Certified Architect / Cassandra MVP Pythian - Love your data rolo@pythian | Twitter: @cjrolo | Skype: cjr2k3 | Linkedin: *linkedin.com/in/carlosjuzarterolo

Re: Sorl/DSE Spark

2018-04-12 Thread sha p
Evelyn, Can you please elaborate on below Spark is notorious for causing latency spikes in Cassandra which is not great if you are are sensitive to that. On Thu, 12 Apr 2018, 10:46 Evelyn Smith, wrote: > Are you building a search engine -> Solr > Are you building an