ANNAMANENI: can you clarify what you mean by "multiple repositories"; maybe "repositories" is a word with specific meaning for your system. If this functionality were removed, would something be harder? I'm going to guess you aren't using Docker / containers yet.
~ David Smiley Apache Lucene/Solr Search Developer http://www.linkedin.com/in/davidwsmiley On Wed, Sep 21, 2022 at 12:28 PM ANNAMANENI RAVEENDRA < a.raveendra...@gmail.com> wrote: > Hi we are using solr.xml from zk as we are using it for storing multiple > repositories in a single file. > > > > > On Wed, 21 Sep 2022 at 12:25 PM, Houston Putman <houstonput...@gmail.com> > wrote: > > > I have also never seen people use a ZK solr.xml, and I see the solr.xml > as > > a node-config file. I'd be very happy to only support file-system > solr.xml > > loading. > > > > On Wed, Sep 21, 2022 at 9:11 AM Jan Høydahl <jan....@cominvent.com> > wrote: > > > > > Hi, > > > > > > Since 9.0 Solr can start with an empty SOLR_HOME as it will use > defaults > > > in their place < > > > > > > https://solr.apache.org/guide/solr/9_0/upgrade-notes/major-changes-in-solr-9.html > > >: > > > "Solr no longer requires a solr.xml in $SOLR_HOME. If one is not found, > > > Solr will instead use the default one from > > $SOLR_TIP/server/solr/solr.xml." > > > > > > So this motivation for storing solr.xml centrally is no longer valid. > > > > > > I agree with David's comment on the JIRA that this is also a question > > > about what we want solr.xml to be conceptually - a node-config file, > or a > > > cluster-config file. We have other locations for cluster-wide > > > configuration. Today I think solr.xml is a mix of the two. A value like > > > "zkClientTimeout" could be cluster-wide while "host" and "hostPort" are > > of > > > course node-local. > > > > > > I'm also thinking about rolling upgrade scenario. So you do a rolling > > > upgrade from solr 8.11 to 9.0. For the 9.0 nodes you need different > > > configuration, maybe even radically different XML. Today most values in > > > solr.xml is sourced from Java System Properties, which is also a strong > > > hint that this is per-node. > > > > > > Jan > > > > > > > 20. sep. 2022 kl. 22:50 skrev Shawn Heisey > > <elyog...@elyograg.org.INVALID > > > >: > > > > > > > > On 9/20/22 14:18, Jan Høydahl wrote: > > > >> It has been possible to load solr.xml centrally from zookeeper for a > > > long time. > > > >> However, I'm considering deprecating and removing this feature. > > > >> Please see https://issues.apache.org/jira/browse/SOLR-15959 for > > > motivation. > > > >> > > > >> My question to the users list is thus - are you loading solr.xml > from > > > zookeeper? > > > >> And if yes, why is that capability important for you - i.e. could > you > > > not configure it per node? > > > > > > > > I have done very little with SolrCloud myself. I converted my tiny > > > little install to cloud with embedded zk, just the one server, one > > > collection and one core. I do not have solr.xml in ZK. I did this so > I > > > have access to whatever functionality is cloud-only, should a need ever > > > arise. I fiddle with that install sometimes to try and answer support > > > questions. Rebuilding the index only takes about ten minutes, so if I > > > screw something up I just restore the working config, delete the data > > > directory, restart, and reindex. > > > > > > > > I can see a lot of value in being able to fire up a Solr node with > only > > > /etc/default/solr.in.sh being provided. The solr home can then be > > > provided completely empty and the node will start, as long as solr.xml > is > > > in ZK. > > > > > > > > One thing I think we should do is make it so that Solr starts with > some > > > defaults, if solr.xml is not found at all. We can then bikeshed about > > what > > > the defaults should be. > > > > > > > > Making it possible for cloud mode to start without solr.xml might > > remove > > > most people's need to have it live in ZK. It would make things easier > on > > > docker users ... they would be able to attach a completely empty volume > > for > > > the solr home and Solr would start. They might then go back and add a > > > solr.xml to provide custom settings. > > > > > > > > Thanks, > > > > Shawn > > > > > > > > > > > > >
