Dovecot and Solr on the same server or on different

Christian Kivalo ml+dovecot at
Sat Jul 6 00:17:59 EEST 2019

On 2019-07-05 23:00, Larry Rosenman via dovecot wrote:
> What changes did you make to support partial searches?
added the line <filter class="solr.NGramFilterFactory" minGramSize="3" 
maxGramSize="15" /> after <filter class="solr.LowerCaseFilterFactory"/> 
to the <analyzer type="index"> block of the schema.xml from the wiki.
Then remove your existing index and managed-schema, restart solr and 

This nearly doubled the index in size but it's worth it.

> On Fri, Jul 5, 2019 at 3:58 PM Christian Kivalo via dovecot
> <dovecot at> wrote:
>> On 2019-06-21 09:18, Götz Reinicke via dovecot wrote:
>>> Hi Christian,
>>>> Am 20.06.2019 um 18:05 schrieb Christian Kivalo via dovecot
>>>> <dovecot at>:
>>>>> So if dovecot and Solr are good with a host each, I m fine with
>>>>> managing two VMs.
>>>> They do. I'm using such a setup for some years now.
>>> May be you you could give me some suggestions on how to proceed
>> after
>>> having the Solr up and running?
>>> What is the best procedure to move all mailbox search index from
>> the
>>> current (old) style to Solr?
>>> Like: doveadm index -A -q '*'
>> This should do it. I did some searches. That triggers indexing when
>> there is none.
>>> May I adjust some Sorl defaults for memory/cahces etc to suite my
>>> setup?
>> Apart from min and max java mem i didn't change any solr defaults.
>> I'm
>> using solr 8.0.0 and setup as described in the wiki.
>> I changed the provided schema from the wiki to support partial
>> searches.
>> The index grew quite a bit but it's working fine.
>>> Thanks fro feedback and regards . Götz
>> --
>> Christian Kivalo
> --
> Larry Rosenman           
> Phone: +1 214-642-9640 (c)     E-Mail: larryrtx at
> US Mail: 5708 Sabbia Dr, Round Rock, TX 78665-2106

  Christian Kivalo

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