On 18-Oct-07, at 11:43 AM, Chris Hostetter wrote:
: This is easy--I always convert dates to UTC. Doubly important
since several
: of our servers operate in different timezones.
:
: Less easy is changing Solr's interpretation of NOW in DateMath to
be UTC.
: What is the correct way to go about this?
You lost me there ... "Dates" in java have no concept of timezone,
they
are absolute moments in the space/time continuom. timezones only
affect
the parsing/formating of dates. "NOW" is whenever Solr parses the
string,
and when Solr then formats that Date as a string, it formats it in
UTC.
Ah, that is good. So if:
$ date
Thu Oct 18 12:07:42 PDT 2007
Then NOW in Solr will be the absolute date Thu Oct 18 04:07:42 2007
(which is the current time in UTC)?
i'm guessing you are refering to the notion of rounding down the the
nearest "day" (or anything of less granularity) ... this is currently
hardcoded to be done relative UTC -- but as I mention, this is the
type of
thing where ideally Solr would have a setting to let you specify which
timezone the rounding should be relative to.
I'm not sure this is desirable. If your user's are all over the
world, you'd ideally want to round to _their_ timezone, but I don't
see how this is realistic.
thanks,
-Mike
