19 Feb
2008
19 Feb
'08
1:10 p.m.
Hi Sigrid,
First, a Notify with no body is sent in two cases:
1. the status of the subscription is 'pending' or 'rejected'
2. the server has no published information made by the user the
subscription is addressed to (for example, if a user subscribes to 5,
from which only one is registered at the time, he will receive Notifies
with no body for the other four ) .
Second, the presence server works by default in a cache mode with
periodical updated in database. If a fallback to database is desired for
any storing or querying operation, then the "fallback2db" parameter
should be set. It useful only in the case of using more presence servers
that share the same database. In this situation it is possible not to
have a required info in cache, but it might have been processed by
another server and might be present in database.
I think it is a wrong observation that there are no more Notifies with
no body if this parameter is set. The real determinant factor is whether
the buddies have issued a Publish before the Subscription arrives at the
server.
But, if you do see a record in 'presentity' table for a user and a
corresponding Notify, having in its From header the uri of the
presentity, with no body, then there might be a bug there.
I have to mention that I have tested this scenario right now and it
works for me.
Regards,
Anca Vamanu
Sigrid Thijs wrote:
Sigrid Thijs wrote:
Furthermore I noticed that sometimes, the
presence NOTIFY requests do
not contain a body. I checked the database, and there was data in the
body column in the presentity table for the presence resource.
The value in the status column of the watchers/active_watchers table is
1. When I restart openser, the presence descriptions are added to the
NOTIFY requests again (the entry in the database did not change).
I have to say that we insert some presence states directly in the
database via another process. But this is nothing more than an INSERT or
UPDATE statement on the presentity table.
Do you have any idea why a NOTIFY without body is sent? Do i need to
configure something extra? And why does it seem to work after openser
has restarted?
Apparently there's a configuration option "fallback2db" in the presence
module. When I set this value to 1, the problem is solved.
kind regards,
Sigrid
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