On 2019-01-30 07:33, Stephan Bosch wrote:

(forgot to CC mailing list)

Op 26/01/2019 om 20:07 schreef Joan Moreau via dovecot:

*- Bugs so far*

-> Line 620 of fts_solr dovecot plugin : the size oof header is improperly calculated ("huge header" warning for a simple email, which kilss the index of that considered email, so basically MOST emails as the calculation is wrong)

*You can check that regularly in dovecot log file. My guess is the mix of Unicode which is not properly addressed here.*

Does this happen with specific messages? Do you have a sample message for me? I don't see how Unicode could cause this.

 

 

My only guess is that it refers to some 'strlen', which is wrong of course in case of Unicode emails. This is just a guess.

 

But do a grep for "huge" in the dovecot log of a busy server to find examples.

 

(Sorry, I switched to Xapian, as SOlr is creating too much troubles for my server, so no more concrete example)

 

-> The UID returned by SOlr is to be considered as a STRING (and that is maybe the source of problem of the "out of bound" errors in fts_solr dovecot, as "long" is not enough)

*This is just highly visible in Solr schema.xml. Swithcing it to "long" in schema.xml returns plenty of errors.*

I cannot reproduce this so far (see modified schema below). In a simple test I just get the desired results and no errors logged.

 

I got this with large mailboxes (where UID seems not acceptable for Solr ). The fault is not on Dovecot side but Solr, and the returned UID(s) for a search is garbage instead of a proper value -> Putting it as string solves this

 

-> Java errors : A lot of non sense for me, I am not expert in Java. But, with increased memory, it seems not crashing, even if complaining quite a lot in the logs

Can you elaborate on the errors you have seen so far? When do these happen? How can I reproduce them?

*Honestly, I have no clue what the problems are. I just increased the memory of the JVM and the systems stopped crashing. Log files are huge anyway.*

What errors do you see? I see only INFO entries in my /var/solr/logs/solr.log. Looks like Solr is pretty verbose by default (lots of INFO output), but there must be a way to reduce that.

 

 

I deleted SOlr. No more logs. Maybe someone else can tell.

 

<?xml version="1.0" encoding="UTF-8"?>
<schema name="dovecot" version="2.0">
<uniqueKey>id</uniqueKey>
<fieldType name="long" class="solr.LongPointField" positionIncrementGap="0"/>
<fieldType name="dovecottext" class="solr.TextField" autoGeneratePhraseQueries="true" positionIncrementGap="100">
<analyzer type="index">
<tokenizer class="solr.ClassicTokenizerFactory"/>
<filter class="solr.WordDelimiterGraphFilterFactory" catenateNumbers="1" generateNumberParts="1" splitOnCaseChange="1" generateWordParts="1" splitOnNumerics="1" catenateAll="1" catenateWords="1" preserveOriginal="1"/>
<filter class="solr.FlattenGraphFilterFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.TrimFilterFactory"/>
<filter class="solr.RemoveDuplicatesTokenFilterFactory"/>
</analyzer>
<analyzer type="query">
<tokenizer class="solr.KeywordTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.TrimFilterFactory"/>
<filter class="solr.RemoveDuplicatesTokenFilterFactory"/>
</analyzer>
</fieldType>
<fieldType name="dovecotfield" class="solr.TextField" autoGeneratePhraseQueries="true">
<analyzer type="index">
<tokenizer class="solr.ClassicTokenizerFactory"/>
<filter class="solr.NGramFilterFactory" minGramSize="3" maxGramSize="25"/>
<filter class="solr.TrimFilterFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.RemoveDuplicatesTokenFilterFactory"/>
</analyzer>
<analyzer type="query">
<tokenizer class="solr.KeywordTokenizerFactory"/>
<filter class="solr.LowerCaseFilterFactory"/>
<filter class="solr.TrimFilterFactory"/>
<filter class="solr.RemoveDuplicatesTokenFilterFactory"/>
</analyzer>
</fieldType>

<fieldType name="string" class="solr.StrField"/>
<field name="_version_" type="string" indexed="true" stored="true"/>
<field name="bcc" type="string" indexed="false" stored="false"/>
<field name="body" type="dovecottext" indexed="true" stored="false"/>
<field name="box" type="string" indexed="true" required="true" stored="true"/>
<field name="cc" type="dovecotfield" indexed="true" stored="false"/>
<field name="from" type="dovecotfield" indexed="true" stored="false"/>
<field name="hdr" type="string" indexed="false" stored="false"/>
<field name="id" type="string" indexed="true" required="true" stored="true"/>
<field name="subject" type="dovecottext" indexed="true" stored="false"/>
<field name="to" type="dovecotfield" indexed="true" stored="false"/>
<field name="uid" type="long" indexed="true" required="true" stored="true"/>
<field name="user" type="string" indexed="true" required="true" stored="true"/>
</schema>