thanks Joe and Bryan, these are good reasons On Fri, Jun 12, 2020 at 10:06 AM Joe Witt <[email protected]> wrote:
> Id add that there may well be a CDH compatible version of newer nifi > releases for those distributions. Contact the vendor. > > But it was definitely important for the apache nifi community to benefit > from the latest zk security features and fixes. > > On Fri, Jun 12, 2020 at 6:54 AM Bryan Bende <[email protected]> wrote: > >> I believe the main reason was to finally get TLS support from ZK 3.5.x, >> which NiFi community has wanted for a long time, plus getting on a more >> recent version with other security related fixes. >> >> On Fri, Jun 12, 2020 at 9:43 AM Boris Tyukin <[email protected]> >> wrote: >> >>> wow this is a major pain as we have to stay on CDH 6.1/6.2 for a long >>> time for some reasons. Do you know why Bryan they decided to require 3.5.5 >>> now? >>> >>> >>> >>> >>> On Thu, Jun 4, 2020 at 8:42 PM Sri Harsha Chavali < >>> [email protected]> wrote: >>> >>>> Thank you for the inputs Bryan! Not much we can do at this time and >>>> need to figure out a way to incorporate secure 3.5.5 ZK running in parallel >>>> with ZK 3.4.x in our environment. >>>> >>>> Thanks, >>>> Harsha >>>> >>>> Sent from Outlook <http://aka.ms/weboutlook> >>>> ------------------------------ >>>> *From:* Bryan Bende <[email protected]> >>>> *Sent:* Thursday, June 4, 2020 3:34 PM >>>> *To:* [email protected] <[email protected]> >>>> *Subject:* Re: Upgrade NiFi 1.11.4 Cluster External ZooKeeper 3.4.X >>>> >>>> Hello, >>>> >>>> Starting with NiFi 1.10.0 [1], ZooKeeper 3.5.x is a requirement, it >>>> will not work with 3.4.x. >>>> >>>> It is generally not recommended to use embedded ZK for production. >>>> >>>> Thanks, >>>> >>>> Bryan >>>> >>>> [1] https://cwiki.apache.org/confluence/display/NIFI/Migration+Guidance >>>> >>>> >>>> On Thu, Jun 4, 2020 at 3:04 PM Sri Harsha Chavali < >>>> [email protected]> wrote: >>>> >>>> Hi All, >>>> >>>> We have been running NiFi 1.9.2 (3 Node Cluster) with external >>>> ZooKeeper 3.4.X in both CDH 6.2.X and 5.15.X versions. We are trying to >>>> upgrade our NiFi cluster to version 1.11.4 but noticed that it has >>>> Zookeeper 3.5.5 dependency. I have a couple of questions after playing with >>>> NiFi 1.11.4 on my VM. >>>> >>>> 1. Is the ZK 3.5.5 a mandatory dependency or can we still live with >>>> ZK 3.4.x? >>>> 2. If ZK 3.5.5 is a mandatory dependency. Can we reliably run >>>> embedded ZK on all cluster nodes while not using the existing ZK which >>>> comes with our cluster? I ask this question because if we run a 3 node >>>> NiFi >>>> cluster with embedded ZK, the ZK on that node goes down along with NiFi >>>> when there is an issue. This will cause Quorum/voting issues and will >>>> that >>>> break the NiFi cluster? >>>> 3. If piggybacking on the existing External ZK 3.4.X is an option >>>> what is the functionality we will lose? Is it all the processors that >>>> rely >>>> on state-management that get effected? >>>> >>>> Thank you, >>>> Harsha >>>> >>>> Sent from Outlook <http://aka.ms/weboutlook> >>>> >>>>
