Hello!
Teofilis Martisius wrote:
>
> MnoGoSearch v3.1.11/mysql
> Solaris/sparc 7
>
> I had some questions about cache mode.
>
> First, I have this problem- in my search engine a lot of queries return
> results with URLs that have no title, take up 0 bytes and so on. I think
> it is because these URLs exist in cache mode database, but don't have
> corresponding URL records (or am I wrong? how do I check that?).
Yes, this seems to be true.
> I started
> indexing in cache mode with mnogosearch v3.1.9 and didn't clear database
> until now (now I am running 3.1.11).
There was some incompatibilities in cache mode between versions. Check
ChangeLog. Empty result may be also because of it, if you used old
database
then upgraded an indexer and started to index again with old database.
> Can these versions of MnoGoSearch use
> same SQL tables and/or cache mode database? Can I use same databases with
> MnoGoSearch compiled with and without phrase support?
No.
> How do I clean the
> mess up so that there are no null results found? Is there any tool like
> fsck to check/repair cache mode databases in development or planned?
Please clear SQL database and cache mode data then upgrade to 3.1.12
and start indexing again.
> Is there any documentation about cache mode IMPLEMENTATION, besides code?
> F.e. what does crc32 field ir url table mean? What is the file structure
> in cache mode database (var/cache/*)?
There is no documentation. We'll try to describe it in the future.
> By the way, can I run several indexers in cache mode on same machine at
> the same time now at version 3.1.11? What about multithreading? I think
> you should put this information into documentation or README or ChangeLog
> or whatever of each release.
You can run several indexers using cachelogd. Check documentation
in doc/cachemode.txt. Multithreading should work. It does work fine on
my FreeBSD box.
But people say it does not work sometimes. It is very hard to debug
threads :-(
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