I have renamed the thread, because I think we need to discuss everything
about index construction or reconstruction when the server already
contains data.
Kiran Ayyagari wrote:
Emmanuel Lecharny wrote:
Ok, let's go deep into each system index now. We don't really care
about user index right now.
First, we have to know that a system index can still be configured in
the Server.xml file, because the user can set the index size. We need
to clarify exactly what can be configured, what is the default and
also discuss about what can be improved.
1) What can be configured
Let's list the parameter we can work on :
- wkDirPath : the working directory path used to store the index
<paranoia>
What if the user configures it to '/tmp' and reboots the machine
after the server has loaded some data.
All the indexed data would be lost. May be we should warn users about
it in the doc
</paranoia>
We can't protect users against themselves... Someone deciding to put an
index on /tmp either knows what he does or deserves to see his index
being deleted on reboot ;)
We should have some mechanism where by the server notifies the user
either to rebuild the index or
the server itself does it.
I was thinking about the index rebuilding problem, or more probably,
index building after addition of one index after data has been injected
into the server. We need such a tool, the thing is how to implement it ?
Is it possible to have a on-line index construction system ? (ie, a
mechanism able to build an index while the server is running).
IMHO, I think we should offer a simple index creation system. It can be
activated as a separate process, or probably better, as a startup option
for the server, so we can invoke it through Studio.
This should be easy as we already have a command line tool to rebuild
the index the only thing is to fix
this partially broken tool (I have started to fix this tool sometime
back but it hasn't come out of
workspace may be for 2.0 it will :) and add some code to the server to
notify the user.
That could be a good start.
--
--
cordialement, regards,
Emmanuel Lécharny
www.iktek.com
directory.apache.org
