Right, Lance, I meant in the field defintion. I appreciate your help and direction.
Dennis Gearon Signature Warning ---------------- It is always a good idea to learn from your own mistakes. It is usually a better idea to learn from others’ mistakes, so you do not have to make them yourself. from 'http://blogs.techrepublic.com.com/security/?p=4501&tag=nl.e036' EARTH has a Right To Life, otherwise we all die. ----- Original Message ---- From: Lance Norskog <goks...@gmail.com> To: solr-user@lucene.apache.org Sent: Tue, January 4, 2011 7:15:07 PM Subject: Re: uuid, COMB uuid, distributed farms 'NOT NULL' in the schema is 'required=true' in a <field> element. 'Search for NOT NULL' is a little odd: you search for a range and then negate the search, meaning for documents with nothing in that field. This standard query does it: -field:[* TO *] On Tue, Jan 4, 2011 at 2:49 PM, Dennis Gearon <gear...@sbcglobal.net> wrote: > Thanks Lance. > > I will be generating the COMB style of UUID external to Solr. > Prevents a lot of index paging during INSERTS on DBs, maby eSolr too. > > So I would not use 'NEW' in the following, right? > Just leave default out? > Some sort of NOT NULL available in a Solr Schema? > > <field name="id" type="uuid" indexed="true" stored="true" default="NEW"/> > PHP code to make the COMB style of UUID, > easily adapted to other languages, some solutions already exist: > > <code> > //requires php5_uuid module in PHP > function make_comb_uuid(){ > uuid_create(&$v4); > uuid_make($v4, UUID_MAKE_V4); > uuid_export($v4, UUID_FMT_STR, &$v4String); > $var=gettimeofday(); > return > substr($v4String,0,24).substr(dechex($var['sec'].$var['usec']),0,12); > > } > > </code> > > Dennis Gearon > > > > > ----- Original Message ---- > From: Lance Norskog <goks...@gmail.com> > To: solr-user@lucene.apache.org > Sent: Tue, January 4, 2011 2:15:32 PM > Subject: Re: uuid, COMB uuid, distributed farms > > http://wiki.apache.org/solr/UniqueKey > > On Mon, Jan 3, 2011 at 6:55 PM, pankaj bhatt <panbh...@gmail.com> wrote: >> HI Dennis, >> I have used UUID in context of an application where an installation id >> (UUID) is generated by the code. It caters to around 10K users. >> I have not used it in context of SOLR. >> >> / Pankaj Bhatt. >> >> On Mon, Jan 3, 2011 at 11:05 PM, Dennis Gearon <gear...@sbcglobal.net>wrote: >> >>> Thank you Pankaj. >>> >>> How large was your installation of Solr? I'm hoping to get mine to be >>> multinational and making plans for that as I go. So having unique ids, >>> UUIDs, >>> that cover a huge addressable space is a requirement. >>> >>> If your's was comparable, how were your replication issues, merging issues, >>> anthing else related to getting large datasets searchable and unique? >>> >>> Dennis Gearon >>> >>> >>> Signature Warning >>> ---------------- >>> It is always a good idea to learn from your own mistakes. It is usually a >>> better >>> idea to learn from others’ mistakes, so you do not have to make them >>> yourself. >>> from 'http://blogs.techrepublic.com.com/security/?p=4501&tag=nl.e036' >>> >>> >>> EARTH has a Right To Life, >>> otherwise we all die. >>> >>> >>> >>> ----- Original Message ---- >>> From: pankaj bhatt <panbh...@gmail.com> >>> To: solr-user@lucene.apache.org; gear...@sbcglobal.ne >>> Sent: Mon, January 3, 2011 8:55:21 AM >>> Subject: Re: uuid, COMB uuid, distributed farms >>> >>> Hi Dennis, >>> >>> I have used UUID's in my project to identify a basic installation of >>> the client. >>> Can i be of any help. >>> >>> / Pankaj Bhatt. >>> >>> On Mon, Jan 3, 2011 at 3:28 AM, Dennis Gearon <gear...@sbcglobal.net> >>> wrote: >>> >>> > Planning ahead here. >>> > >>> > Anyone have experience with UUIDs, COMB UUIDs (sequential) in large, >>> > internatiionally distributed Solr/Database project. >>> > >>> > Dennis Gearon >>> > >>> > >>> > Signature Warning >>> > ---------------- >>> > It is always a good idea to learn from your own mistakes. It is usually a >>> > better >>> > idea to learn from others’ mistakes, so you do not have to make them >>> > yourself. >>> > from 'http://blogs.techrepublic.com.com/security/?p=4501&tag=nl.e036' >>> > >>> > >>> > EARTH has a Right To Life, >>> > otherwise we all die. >>> > >>> > >>> >>> >> > > > > -- > Lance Norskog > goks...@gmail.com > > -- Lance Norskog goks...@gmail.com
