Error when searching in mailfolders

[Christoph Pleger]

Hello,

> On 29 Jun 2016, at 16:40, Christoph Pleger <Christoph at plmail.de> wrote:
>>
>> Hello,
>>
>> I just found that with my dovecot 2.2.21, when I use squirrelmail to
>> search for something in my mailfolders, that fails with
>>
>> ERROR: Connection dropped by IMAP server.
>> Query: SEARCH CHARSET ISO-8859-1 ALL FROM "someone"
>>
>> That happens for searches in any folder, except from INBOX. When I
>> search
>> in all folders, only results from INBOX are found, then the error
>> message
>> is shown.
>>
>> The log says:
>>
>> imap: Error: terminate called after throwing an instance of
>> 'CLuceneError'
>>
>> imap(christoph): Fatal: master: service(imap): child 2834 killed with
>> signal 6 (core dumps disabled)
>>
>> What can I do about that?
>
> Lucene library is throwing an error, which crashes Dovecot. Maybe Dovecot
> should catch the error, but it would still be broken. Try deleting the
> lucene indexes and rebuilding them?

Deleting the indexes helped, but after they had been rebuilt, the error
occurred again.

Regards
  Christoph