Re: Few Queries regarding indexes in Solr
Otis Gospodnetic schrieb: [...] nothing prevents the indexing client from sending the same doc to multiple shards. In some scenarios that's exactly what you want to do. What kind of scenario would that be? One scenario is making use of small and large core to provide near real-time search - you index to both - to smaller so you can flip/drop/purge+reopen it frequently and quickly, the large one to persist. You search across both of them and remove dupes. This makes sense. Thanks for taking the time to answer this. Q: What is the most annoying thing in e-mail? A: it never stops! Imagine it did one day! Michael Ludwig
Re: Few Queries regarding indexes in Solr
Otis Gospodnetic schrieb: Regarding that 3rd answer below: Putting it back in context (where it belongs :-) : My (very limited) understanding of shards is that you repartition your documents among shards and send each document to only one shard. (Not sure this is correct.) Yes, that's what most people do, though nothing prevents the indexing client from sending the same doc to multiple shards. In some scenarios that's exactly what you want to do. What kind of scenario would that be? Michael Ludwig -- A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?
Re: Few Queries regarding indexes in Solr
Hi Michael, - Original Message From: Michael Ludwig m...@as-guides.com To: solr-user@lucene.apache.org Sent: Wednesday, June 17, 2009 8:34:10 AM Subject: Re: Few Queries regarding indexes in Solr Otis Gospodnetic schrieb: Regarding that 3rd answer below: Putting it back in context (where it belongs :-) : My (very limited) understanding of shards is that you repartition your documents among shards and send each document to only one shard. (Not sure this is correct.) Yes, that's what most people do, though nothing prevents the indexing client from sending the same doc to multiple shards. In some scenarios that's exactly what you want to do. What kind of scenario would that be? One scenario is making use of small and large core to provide near real-time search - you index to both - to smaller so you can flip/drop/purge+reopen it frequently and quickly, the large one to persist. You search across both of them and remove dupes. -- A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail? A: it never stops! Otis
Few Queries regarding indexes in Solr
Hi, 1. Is it possible to query from another index folder (say index1) in solr? 2. Is it possible to query 2 indexes(folders index1 and index2) stored in the same machine using the same port on a single solr instance? 3. consider a case: i have indexes in 2 shards, and i merge the indexes (present in 2 shards) onto the 3rd shard now i add more documents into shard1 and delete some documents from shard 2 and update the indexes. is it possible to send the differences only into shard 3 and then merge it at shard 3? Regards, Raakhi
Re: Few Queries regarding indexes in Solr
Hello, Answers inlined. - Original Message 1. Is it possible to query from another index folder (say index1) in solr? You don't really query *from* an index, so I'm not sure what exactly you mean. However, you can query Solr remotely, if that's what you mean, for example using SolrJ if your application is written in Java. 2. Is it possible to query 2 indexes(folders index1 and index2) stored in the same machine using the same port on a single solr instance? Yes, please look for DistributedSearch on the Wiki. 3. consider a case: i have indexes in 2 shards, and i merge the indexes (present in 2 shards) onto the 3rd shard now i add more documents into shard1 and delete some documents from shard 2 and update the indexes. is it possible to send the differences only into shard 3 and then merge it at shard 3? If I understood you correctly, then no, sending only the newly added/deleted documents in 2 indices to the 3rd index after the fact is not doable. Otis -- Sematext -- http://sematext.com/ -- Lucene - Solr - Nutch
Re: Few Queries regarding indexes in Solr
Rakhi Khatwani schrieb: 1. Is it possible to query from another index folder (say index1) in solr? I think you're looking for the multi-core feature. http://wiki.apache.org/solr/MultipleIndexes http://wiki.apache.org/solr/CoreAdmin 2. Is it possible to query 2 indexes(folders index1 and index2) stored in the same machine using the same port on a single solr instance? Sounds like multi-core. 3. consider a case: i have indexes in 2 shards, and i merge the indexes (present in 2 shards) onto the 3rd shard now i add more documents into shard1 and delete some documents from shard 2 and update the indexes. is it possible to send the differences only into shard 3 and then merge it at shard 3? My (very limited) understanding of shards is that you repartition your documents among shards and send each document to only one shard. (Not sure this is correct.) Michael Ludwig
Re: Few Queries regarding indexes in Solr
Regarding that 3rd answer below: Yes, that's what most people do, though nothing prevents the indexing client from sending the same doc to multiple shards. In some scenarios that's exactly what you want to do. Otis -- Sematext -- http://sematext.com/ -- Lucene - Solr - Nutch - Original Message From: Michael Ludwig m...@as-guides.com To: solr-user@lucene.apache.org Sent: Tuesday, June 16, 2009 8:36:25 AM Subject: Re: Few Queries regarding indexes in Solr Rakhi Khatwani schrieb: 1. Is it possible to query from another index folder (say index1) in solr? I think you're looking for the multi-core feature. http://wiki.apache.org/solr/MultipleIndexes http://wiki.apache.org/solr/CoreAdmin 2. Is it possible to query 2 indexes(folders index1 and index2) stored in the same machine using the same port on a single solr instance? Sounds like multi-core. 3. consider a case: i have indexes in 2 shards, and i merge the indexes (present in 2 shards) onto the 3rd shard now i add more documents into shard1 and delete some documents from shard 2 and update the indexes. is it possible to send the differences only into shard 3 and then merge it at shard 3? My (very limited) understanding of shards is that you repartition your documents among shards and send each document to only one shard. (Not sure this is correct.) Michael Ludwig
