We have a bit of a mismatch that the people who generally provide the minimal support to DIH are not the folks deploying and using it. It would be great to get more users of DIH to contribute fixes and maintain to the plugin.
DIH was spun out of core Solr so that it could build a proper community of people who are actively using it to also be driving it forward and doing the development and enhancements that it needs! I think DIH is a super powerful feature, but it needs maintainers! > On Jun 6, 2025, at 9:02 AM, Sarah Weissman <sweiss...@stsci.edu> wrote: > > After hearing from a few people who were able to get DIH to keep working by > building the jars into Solr 9, I did go back and eventually build a custom > Solr image with the jars I needed in place and I did get that to work with a > Solr 8 base image. I haven't tried with Solr 9 yet. In hindsight, building > the jars into the image is what I should have tried first. Long term I think > we probably need another solution, but I am relieved to have something > running. > > I'll take a look at the coordinator node. Thanks for the tip. > > -Sarah > > On 5/30/25, 5:30 PM, "Mikhail Khludnev" <m...@apache.org > <mailto:m...@apache.org>> wrote: > > > External Email - Use Caution > > > Hello Sarah. > > > It's hard to propose to stay on DIH, but fwiw, couldn't it still be > deployed by placing jars into some /lib dir and cofiguring like in the good > old days? I guess it still works and suits fine for custom images, where > there's no need in runtime plugin deploy. > Also, recently I added an ability to work in coordinator node in SolrCloud > https://urldefense.com/v3/__https://github.com/SearchScale/dataimporthandler/pull/62__;!!CrWY41Z8OgsX0i-WU-0LuAcUu2o!y0XysA1BkGl7y928FGeslfKYcmj4SMarwfTGmHBoFVQKywOKCay0rtKQjxAhFucjpFWamUMmdwy6Hg$ > > <https://urldefense.com/v3/__https://github.com/SearchScale/dataimporthandler/pull/62__;!!CrWY41Z8OgsX0i-WU-0LuAcUu2o!y0XysA1BkGl7y928FGeslfKYcmj4SMarwfTGmHBoFVQKywOKCay0rtKQjxAhFucjpFWamUMmdwy6Hg$> > Regarding alternatives, I looked into Apache Hop, but found it difficult to > build a proper payload without a proper SolrOutputPlugin, haven't got a > chance to implement it either. > > > > > On Thu, May 29, 2025 at 7:43 PM Sarah Weissman <sweiss...@stsci.edu > <mailto:sweiss...@stsci.edu>> wrote: > > >> Hi all, >> >> We’ve been using Solr with DIH for about 8 years or so but now we’re >> hitting an impasse with DIH being deprecated in Solr 9. Additionally, I’m >> looking to move our Solr deploy to Kubernetes and I’ve been struggling to >> figure out what to do with the DIH component in a cloud setting. I was >> hoping to get something that replicates our current setup up ad running >> pretty quickly, but our DIH implementation has some custom code and I’m >> unable to get the jar dependency to load as a runtime library from the blob >> store with Solr 8. Maybe this isn’t possible with DIH? I’ve never used the >> runtimelib feature before and I have been unable to get the examples from >> the docs to work because the jars are too old. The next thing I would try >> is building my own custom image of Solr that includes the jar I need, but >> I’m also hesitant to spend a bunch more time on making deprecated features >> in Solr 8 work. >> >> Unfortunately, I’ve also been unable to get the new DIH 3rd party plugin >> to work with Solr 9 and I’ve found the plugin commands with the solr script >> to be pretty finicky and the syntax changes between 8 and 9 frustrating as >> I switch between versions trying to get something to work as documented. >> I’m really not in a position where writing my own plugin is feasible at >> this point. >> >> I’ve been banging my head against this all week and I’m trying to figure >> out the best way forward at this point. Is DIH still a viable option or >> should I be moving off of that something else? Any advice or perspectives >> on this would be appreciated. >> >> Thanks >> Sarah >> > > > > > -- > Sincerely yours > Mikhail Khludnev > > > _______________________ Eric Pugh | Founder | OpenSource Connections, LLC | 434.466.1467 | http://www.opensourceconnections.com <http://www.opensourceconnections.com/> | My Free/Busy <http://tinyurl.com/eric-cal> Co-Author: Apache Solr Enterprise Search Server, 3rd Ed <https://www.packtpub.com/big-data-and-business-intelligence/apache-solr-enterprise-search-server-third-edition-raw> This e-mail and all contents, including attachments, is considered to be Company Confidential unless explicitly stated otherwise, regardless of whether attachments are marked as such.
