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2018-09-26 AAI Meeting Notes

PTL 2018-11-05

Project Recommendations for Package Upgrades 

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  • From: Greg Matza [mailto:greg@scylladb.com]
    Sent: Tuesday, 11 December 2018 13:01
    To: Keong Lim <Keong.Lim@huawei.com>
    Cc: stephen.terrill@ericsson.com; jf2512@att.com; Maheedhar Gunturu <maheedhar@scylladb.com>
    Subject: Re: ScyllaDB



    Keong,


    Unfortunately, we don't have a public demo lab that you can point your application at. The closest we have is the Scylla Test Drive, which spins up a cluster on AWS and gives you SSH access to the nodes, but the cluster only runs for an hour, and you are mostly stuck with cassandra-stress. (https://www.scylladb.com/test-drive/) Better than nothing, but not perfect.


    For your testing, we are happy to share all the necessary instructions on how to get started using Scylla with Kubernetes and give you access to our Helm Charts and stateful sets. We are also happy to make ourselves available over Slack and/or web conferences to help set everything up. 


    Hardware requirements are https://docs.scylladb.com/getting-started/system-requirements/. Scylla will probably run on your laptop, but the official testing and Production recommendations are:


    Installation

    Cores

    Memory

    Disk

    Network

    Test, minimal

    4

    2 GB

    Single plain SSD

    1 Gbps

    Production

    20 cores - 2 socket, 10 cores each

    128 GB

    RAID-0, 4 SSDs, 1-5TBs

    10 Gbps

    Ultimately, if you can share workload specs with us, we can make hardware sizing recommendations. 


    Slack invitations are available at http://slack.scylladb.com. Binaries are at https://www.scylladb.com/download/#binary (or https://www.scylladb.com/download/#docker). Let us know when you have the cycles to do some testing. 


    Greg




    ‌


    On Mon, Dec 10, 2018 at 4:35 PM Keong Lim <Keong.Lim@huawei.com> wrote:

    Hi Greg,

     

    To that end, do you have some public demo lab available that runs Scylla in a Kubernetes cluster, where we could push some data and queries through to observe the behavior and collect stats?

    What would be the min/max/default CPU/RAM resources to configure in the pods?

     

    ONAP project has its own Cassandra clusters running in various test labs, so a virtual-side-by-side comparison might provide an interesting data point to consider.

     

     

    Keong

     

    From: Greg Matza [mailto:greg@scylladb.com]
    Sent: Tuesday, 11 December 2018 11:02
    To: Keong Lim <Keong.Lim@huawei.com>
    Cc: stephen.terrill@ericsson.com; jf2512@att.com
    Subject: Re: ScyllaDB


    Sounds good.


    Of course, Jackson vulnerabilities may be the bleeding wound that needs to be patched up most urgently. But there are also other benefits of Scylla vs. Cassandra. Namely, easier maintenance (no JVM tuning, no cache tuning, etc.), and typically cheaper/better performance on fewer nodes.


    I just mention this because the idea of Scylla as a wholesale replacement for all the C* throughout AAI (and even ONAP) came up on your last discussion. (I listened to the recording) Obviously, we'd encourage that! We think our software is awesome! But, beyond our boosterism, there might be real value to users, beyond the Security aspects. 


    Look forward to hearing from you,


    Greg


    On Mon, Dec 10, 2018 at 3:56 PM Keong Lim <Keong.Lim@huawei.com> wrote:

    Hi Greg,

     

    The issue of replacing Jackson libraries came up again from a security standpoint, so there may be some appetite to look at a Cassandra replacement as part of that work.

    The discussion right now is about which use cases will be included in the next release, but priorities have not been agreed yet.

     

    Will keep Scylla in mind when the topic does come up again!

     

     

    Keong

     

     

    From: Greg Matza [mailto:greg@scylladb.com]
    Sent: Tuesday, 11 December 2018 10:28
    To: Keong Lim <Keong.Lim@huawei.com>
    Subject: Re: ScyllaDB


    Keong,


    Congrats on the Casablanca release. 


    We're here to assist with any testing or discussion, once the Cassandra/Scylla question comes up again, as part of Dublin. Any thoughts on when that might be?


    Greg

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Actions:

  • Should ONAP pay for Jackson project to fix the vulnerabilities?
  • Could ScyllaDB be used to replace Cassandra?
  • 2019-09-17: point Greg Matza towards Mike Elliott of OOM team as maintainer of shared/common Cassandra (and other databases).

VF2F December 2018

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