LWT broken?

Hello, I'm running a 2.0.17 cluster (I know, I know, need to upgrade) with 46 nodes across 3 racks (& RF=3). I'm seeing that under high contention, LWT may actually not guarantee uniqueness. With a total of 16 million LWT transactions (with peak LWT concurrency around 5k/sec), I found 38

Refresh from Prod to Dev

Team , I want to validate and POC on production data. Data on production is huge. What could be optimal method to move the data from Prod to Dev environment? I know there are few solutions but what/which is most efficient method do refresh for dev env? -- *C*heers,* *Anshu V*

Re: What kind of Automation you have for Cassandra related operations on AWS ?

Terraform, Packer and Ansible does pretty decently, you may have to do some smarts around replacing nodes and attaching the right volumes to replaced nodes. If you could get Kubernetes working with Cassandra (beyond the readily available guides) then I think you'll be a total baller. On 9

Re: What kind of Automation you have for Cassandra related operations on AWS ?

Terraform plus ansible. Put ok but messy. 5-30,000 nodes and infra Daemeon (Dæmœn) Reiydelle USA 1.415.501.0198 On Thu, Feb 8, 2018, 15:57 Ben Wood wrote: > Shameless plug of our (DC/OS) Apache Cassandra service: >

Re: What kind of Automation you have for Cassandra related operations on AWS ?

At Teads we use Terraform, Chef, Packer and Rundeck for our AWS infrastructure. I'll publish a blog post on Medium which talk about that, it's in the pipeline. Terraform is awesome. Best, RomainLe vendredi 9 février 2018 à 00:57:01 UTC+1, Ben Wood a écrit :

Re: What kind of Automation you have for Cassandra related operations on AWS ?

Shameless plug of our (DC/OS) Apache Cassandra service: https://docs.mesosphere.com/services/cassandra/2.0.3-3.0.14. You must run DC/OS, but it will handle: Restarts Replacement of nodes Modification of configuration Backups and Restores (to S3) On Thu, Feb 8, 2018 at 3:46 PM, Krish Donald

What kind of Automation you have for Cassandra related operations on AWS ?

Hi All, What kind of Automation you have for Cassandra related operations on AWS like restacking, restart of the cluster , changing cassandra.yaml parameters etc ? Thanks

Re: Hints folder missing in Cassandra

Does anyone have more inputs on the missing hints folder, rather why it gets deleted. Has anyone run into this scenario before? Regards, Cassandra User On Wed, Feb 7, 2018 at 9:21 PM, test user wrote: > The problem is even though, I get that O_RDONLY WARN message, if I try

Re: Add column if it does not exist?

To hop on what Jon said, if your concern is automatic application of schema migrations, you want to be very careful with this. I'd consider it an unsolved problem in Cassandra for some methods of schema application. The failed ALTER is not what you have to worry about, it's two successful ALTERs