Shawn -
You had mentioned in another email (somewhere) that were hopefully going
to do a write-up of setting up Solr 9.x with Dovecot. Any chance you've
had time for that ?
Thanks -
On 2022-09-30 1:52 pm, Shawn Heisey wrote:
> On 9/27/22 19:32, Nathanael Anderson wrote:
>
>> I was trying a new install of dovecot w/ solr9. I've manually fixed the file
>> linking to the proper directories, however one plugin is no longer shipped.
>> Since the solr files aren't updated yet to 9, can anyone tell me if I need
>> the discontinued velocity plugin that was default in the dovecot solr 7.7
>> config file. It appears it is now a third party plugin that hasn't been
>> updated for 3 years.
>
> The velocity stuff that Solr ships with is a templating system that
> allows Solr to host a little website showcasing its capabilities. It is
> strongly recommended to never use this in production, as it requires
> that end users have direct network access to the Solr install, which is
> never a good idea.
>
> Dovecot accesses the API directly and does not need velocity.
>
> I am running a dev version of Solr 9.1.0 with the config and schema
> stripped down to just what is needed for Dovecot. I have added the jars
> necessary for the ICU analysis components and I am using two of those
> analysis components in my schema.
>
> I installed Solr on Ubuntu Server using the service installer script
> included in the download. This extracts the tarball in /opt, and then
> sets up /opt/solr as a symlink to the version-specific directory in
> /opt. It creates a directory structure under /var/solr and creates
> /etc/default/solr.in.sh. If you use a service name other than solr,
> that will be named /etc/default/${servicename}.in.sh and I believe the
> data will go to /var/${servicename}.
>
> For ICU, I created /var/solr/data/lib, then copied icu4j-70.1.jar and
> lucene-analysis-icu-9.3.0.jar from /opt/solr/modules/analysis-extras/lib
> to that new lib directory. Solr 9.0.0 would have lucene jars from Lucene
> 9.0.0, but the 9.x branch is currently using Lucene 9.3.0. Do not use
> <lib> config elements in solrconfig.xml to load the jars. My
> solrconfig.xml and managed-schema.xml files can be found here:
>
> https://paste.elyograg.org/view/97597ed3 [1]
> https://paste.elyograg.org/view/dca55086 [2]
>
> My index is quite small by Solr standards, which is why I have such a
> low maxTime on autoSoftCommit. Larger indexes may do better with a
> larger interval there.
>
> I use LATEST for luceneMatchVersion, which generates a warning when Solr
> starts. I am also using 2.0 for the schema version so that it will
> automatically pick up new defaults after the 1.6 version when those
> versions are created in later versions of Solr.
>
> This is the current contents of /etc/default/solr.in.sh with commented
> lines removed:
>
> ---------------
> SOLR_PID_DIR="/var/solr"
> SOLR_HOME="/var/solr/data"
> LOG4J_PROPS="/var/solr/log4j2.xml"
> SOLR_LOGS_DIR="/var/solr/logs"
> SOLR_PORT="8983"
> SOLR_HEAP="1g"
> GC_TUNE="
> -XX:+UseG1GC
> -XX:+ParallelRefProcEnabled
> -XX:MaxGCPauseMillis=100
> -XX:+UseLargePages
> -XX:+AlwaysPreTouch
> -XX:+ExplicitGCInvokesConcurrent
> -XX:ParallelGCThreads=2
> -XX:+UseStringDeduplication
> -XX:+UseNUMA
> "
> SOLR_JAVA_STACK_SIZE="-Xss1m"
> SOLR_ULIMIT_CHECKS=false
> SOLR_GZIP_ENABLED=true
> SOLR_JETTY_HOST=0.0.0.0
> ---------------
>
> Once you have all that in place, start and stop solr using service or
> systemctl. Don't run the solr script directly except to create the
> index ... and for that you must run it as the solr user. Running it as
> root is prohibited by default, and forcing it will cause problems.
>
> My Solr install is running in cloud mode, but I have removed the things
> that configure that to make this info easier to use.
>
> One final note: Solr 9 cannot use indexes touched by Solr 7 or
> earlier. You will need to completely reindex.
>
> Thanks,
> Shawn
Links:
------
[1] https://paste.elyograg.org/view/97597ed3
[2] https://paste.elyograg.org/view/dca55086
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