Re: Is there a C* summit this year?

2017-05-20 Thread Max C
Hi Kant, I reached out to Datastax with this very question a few months ago, here's the response I received: "Great to hear that you enjoyed yourself last year, we surely enjoyed having you and the other community folks! In regards to the actual summit, we will not be holding the Cassandra Su

High network traffic and cpu after read query

2017-05-20 Thread Andrii Biletskyi
Hi all, Running Cassandra 3.9 on 5 node cluster (c4.2xlarge machines). We have loaded quite huge 350M rows table. Also there are some other read and write operations happening *on other small tables*, but the load is very little, cpu is normally less than 10%, network traffic from and to nodes is

Re: Is it safe to upgrade 2.2.6 to 3.0.13?

2017-05-20 Thread Stefano Ortolani
Hi Varun, can you elaborate a bit more? I have seen a schema change being pushed, but that was just the first restart. After that, everything has been smooth so far (including several schema changes, all of them verified via "describe"). Thanks! Stefano On Sat, May 20, 2017 at 2:10 AM, Varun Gup

Re: Is it safe to upgrade 2.2.6 to 3.0.13?

2017-05-20 Thread Cogumelos Maravilha
It's better wait for 3.0.14 https://issues.apache.org/jira/browse/CASSANDRA/fixforversion/12340362/?selectedTab=com.atlassian.jira.jira-projects-plugin:version-summary-panel Cheers. On 05/20/2017 11:31 AM, Stefano Ortolani wrote: > Hi Varun, > > can you elaborate a bit more? I have seen a schem

Re: Apache Cassandra - Configuration Management

2017-05-20 Thread Oskar Kjellin
If you're on AWS you can use Netflix Priam > On 17 May 2017, at 18:40, Abhishek Gupta wrote: > > Hi Zaidi, > > We use Chef for the configuration management of our 14 node cluster. > > You can have a look at Chef or maybe some other config management tools too > like Ansible and Puppet. > >

Re: Is it safe to upgrade 2.2.6 to 3.0.13?

2017-05-20 Thread Xihui He
Thank you all for your kind advises. On 20 May 2017 at 18:41, Cogumelos Maravilha wrote: > It's better wait for 3.0.14 > > https://issues.apache.org/jira/browse/CASSANDRA/fixforversion/12340362/? > selectedTab=com.atlassian.jira.jira-projects-plugin:version-summary-panel > > Cheers. > > > On 05/

Re: Reg:- Data Modelling Concepts

2017-05-20 Thread Gedeon Kamga
One issue that will be encountered with this data model is the unbounded partition growth. Partition will continue to grow indefinitely over time and there will be a risk to hit the limit of 2 billions columns per partition. Consider a composite partition key. Thanks, Gedeon On Wed, May 17, 201

Re: Decommissioned node cluster shows as down

2017-05-20 Thread Gedeon Kamga
If the nodetool status shows DN, then you will need to tell the cluster to remove the memory of that node by running removenode. If that doesn't work, you may run assassinate - the ultimate command to shutdown the node. Thanks, Gedeon On Tue, May 16, 2017 at 12:01 PM, Mark Furlong wrote: > I ha