Am 13.10.2013 12:04, schrieb Thomas Bruederli:
> Michael Heydekamp wrote:

>> My INBOX has > 10,000 messages. When doing a text search in the body across
>> those messages, I'm ALWAYS getting a timeout the first time. Sometimes also
>> when doing it a second time.
> 
> Is this a timeout displayed in the browser?

Yes, it's the Ajax message of Roundcube, see image attached.

It appears (if it appears at all) after 180 secs apparently, but I believe
to have seen it earlier already.

> By default no socket timeout is set thus you might run into the default
> time limit for PHP processes which is defined by the max_execution_time
> php.ini setting.

Currently I have no access to the server, but it may be set to 180 secs,
will check.

>> But when doing it at least the third time (but sometimes at the second
>> attempt already), I get a result within a few seconds.
> 
> This sounds like the IMAP server has finally loaded your inbox into disk
> cache after the second search and is now fast enough to read all of it.

Probably. I just did a test with this list (11,144 messages), the first
search resulted in a timeout after 180 secs, any consecutive search was
successful within 25-35 secs.

>> Is there anything we can do server-side which can improve this? IMAP server
>> is Cyrus.
> 
> Searching is entirely delegated to the IMAP server and optimizations such
> as indexing need to be done there. Cyrus also has means to do indexing.
> Search for cyrus-squatter for more information on this.

Seen, thanks, will test. Unfortunately new messages will not be indexed
automatically, which I do not find very convenient.

Plus: I have not yet found any information if and how Cyrus handles
different 8bit charsets or UTF-8/HTML encoded messages, possibly on top
being qp/b64 encoded. Do you have any information about or experience with
this?

>> Furthermore, how does the text search work at all in detail? If I enter for
>> instance "term1 term2" (without the quotation marks), does RC look for
>> "term1" OR "term2", or does it look for "term1" AND "term2"? And if the
>> latter, does it look for "term1 term2" as an exact phrase, or does it look
>> separately for "term1" AND "term2" anywhere in the body? And do quotation
>> marks have a meaning at all?
> 
> Search strings are passed as-is to the IMAP server with either the SEARCH
> or SORT command like
> 
>   A0004 UID SORT (ARRIVAL) US-ASCII TEXT "image test"
> 
> or
> 
>   A0004 UID SEARCH RETURN (ALL) OR BODY "some test" HEADER SUBJECT "some test"
> 
> If you selected multiple headers sections (headers and/or body) to search
> in, these will be search with OR but the search term is taken as one
> string. Roundcube currently doesn't support operators like AND or OR or
> quotaion.

But it would generally be possible, right?

Anyway, thanks for this helpful information. (Such things should go to a
Roundcube documentation, by the way.)

>> Last but not least: Will there be a header only search available in the near
>> future?
> 
> What exactly does that mean? You can already select headers to search in.

But only the standard headers From, To, Cc, Bcc and Subject. Apart from
that, I can currently search a) in the entire message (all headers + body),
and b) in the body only. "Header only" would search c) in the entire header
section, but not in the body. For instance if I want to find all messages
with a header "X-Envelope-To: [email protected]", where a search in the
entire message (including the body) would simply make no sense.

Would that be feasible?

Cheers,
-- 
Michael Heydekamp
Co-Admin freexp.de
Düsseldorf/Germany

<<attachment: timeout.png>>

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