Re: Updating fields in an existing document
: A followup. The wiki has a whole discussion of the 'update' XML : message. But solrj has nothing like it. Does that really exist? Is : there a reason to use it? If I just 'add' the document a second time, : it will replace? You should only see update in Solr docs used in the context of updating the index by adding (which might be replacing) or deleting documents. (you'll note there is no update tag or anything like that in the XML syntax) -Hoss
Re: Updating fields in an existing document
As in http://wiki.apache.org/solr/UpdateXmlMessages? On Mon, Jul 25, 2011 at 4:10 PM, Chris Hostetter hossman_luc...@fucit.org wrote: : A followup. The wiki has a whole discussion of the 'update' XML : message. But solrj has nothing like it. Does that really exist? Is : there a reason to use it? If I just 'add' the document a second time, : it will replace? You should only see update in Solr docs used in the context of updating the index by adding (which might be replacing) or deleting documents. (you'll note there is no update tag or anything like that in the XML syntax) -Hoss
Re: Updating fields in an existing document
This is a pretty low level issue with inverted indexes (i.e. the underlying data structure used) and not so much the architecture. It is possible, I suppose, to solve it at the architectural level, but in many cases this causes performance problems that are not usually acceptable. On Jul 20, 2011, at 7:08 PM, Jonathan Rochkind wrote: Nope, you're not missing anything, there's no way to alter a document in an index but reindexing the whole document. Solr's architecture would make it difficult (although never say impossible) to do otherwise. But you're right it would be convenient for people other than you. Reindexing a single document ought not to be slow, although if you have many of them at once it could be, or if you end up needing to very frequently commit to an index it can indeed cause problems. From: Benson Margulies [bimargul...@gmail.com] Sent: Wednesday, July 20, 2011 6:05 PM To: solr-user Subject: Updating fields in an existing document We find ourselves in the following quandry: At initial index time, we store a value in a field, and we use it for facetting. So it, seemingly, has to be there as a field. However, from time to time, something happens that causes us to want to change this value. As far as we know, this requires us to completely re-index the document, which is slow. It struck me that we can't be the only people to go down this road, so I write to inquire if we are missing something. -- Grant Ingersoll
Re: Updating fields in an existing document
: As in http://wiki.apache.org/solr/UpdateXmlMessages? Exactly ... the title is XML Messages for Updating a Solr Index But i do see some confusing usages of add/update in the context of documents that definitely don't belong there -- so i've changed them to add/replace. Thanks for bringing this up. -Hoss
Re: Updating fields in an existing document
Yes that's it if you add twice the same document (ie with the same id) it will replace it. On Thu, Jul 21, 2011 at 7:46 PM, Benson Margulies bimargul...@gmail.comwrote: A followup. The wiki has a whole discussion of the 'update' XML message. But solrj has nothing like it. Does that really exist? Is there a reason to use it? If I just 'add' the document a second time, it will replace? On Wed, Jul 20, 2011 at 7:08 PM, Jonathan Rochkind rochk...@jhu.edu wrote: Nope, you're not missing anything, there's no way to alter a document in an index but reindexing the whole document. Solr's architecture would make it difficult (although never say impossible) to do otherwise. But you're right it would be convenient for people other than you. Reindexing a single document ought not to be slow, although if you have many of them at once it could be, or if you end up needing to very frequently commit to an index it can indeed cause problems. From: Benson Margulies [bimargul...@gmail.com] Sent: Wednesday, July 20, 2011 6:05 PM To: solr-user Subject: Updating fields in an existing document We find ourselves in the following quandry: At initial index time, we store a value in a field, and we use it for facetting. So it, seemingly, has to be there as a field. However, from time to time, something happens that causes us to want to change this value. As far as we know, this requires us to completely re-index the document, which is slow. It struck me that we can't be the only people to go down this road, so I write to inquire if we are missing something.
Re: Updating fields in an existing document
A followup. The wiki has a whole discussion of the 'update' XML message. But solrj has nothing like it. Does that really exist? Is there a reason to use it? If I just 'add' the document a second time, it will replace? On Wed, Jul 20, 2011 at 7:08 PM, Jonathan Rochkind rochk...@jhu.edu wrote: Nope, you're not missing anything, there's no way to alter a document in an index but reindexing the whole document. Solr's architecture would make it difficult (although never say impossible) to do otherwise. But you're right it would be convenient for people other than you. Reindexing a single document ought not to be slow, although if you have many of them at once it could be, or if you end up needing to very frequently commit to an index it can indeed cause problems. From: Benson Margulies [bimargul...@gmail.com] Sent: Wednesday, July 20, 2011 6:05 PM To: solr-user Subject: Updating fields in an existing document We find ourselves in the following quandry: At initial index time, we store a value in a field, and we use it for facetting. So it, seemingly, has to be there as a field. However, from time to time, something happens that causes us to want to change this value. As far as we know, this requires us to completely re-index the document, which is slow. It struck me that we can't be the only people to go down this road, so I write to inquire if we are missing something.
Updating fields in an existing document
We find ourselves in the following quandry: At initial index time, we store a value in a field, and we use it for facetting. So it, seemingly, has to be there as a field. However, from time to time, something happens that causes us to want to change this value. As far as we know, this requires us to completely re-index the document, which is slow. It struck me that we can't be the only people to go down this road, so I write to inquire if we are missing something.
RE: Updating fields in an existing document
Nope, you're not missing anything, there's no way to alter a document in an index but reindexing the whole document. Solr's architecture would make it difficult (although never say impossible) to do otherwise. But you're right it would be convenient for people other than you. Reindexing a single document ought not to be slow, although if you have many of them at once it could be, or if you end up needing to very frequently commit to an index it can indeed cause problems. From: Benson Margulies [bimargul...@gmail.com] Sent: Wednesday, July 20, 2011 6:05 PM To: solr-user Subject: Updating fields in an existing document We find ourselves in the following quandry: At initial index time, we store a value in a field, and we use it for facetting. So it, seemingly, has to be there as a field. However, from time to time, something happens that causes us to want to change this value. As far as we know, this requires us to completely re-index the document, which is slow. It struck me that we can't be the only people to go down this road, so I write to inquire if we are missing something.
