Thanks Shawan. My index meets Atomic update req, so I want to use DIH because of its convenience I am in a solr cloud with 5 shards (with a separate zookeeper ensemble), so I will have to put 5 entity tags so that i can give 5 diff urls , one for each shard ?
thanks neeraj On Wed, Feb 24, 2016 at 7:34 PM, Shawn Heisey <apa...@elyograg.org> wrote: > On 2/23/2016 11:10 PM, Neeraj Bhatt wrote: >> Hello >> >> We have a solr cloud stored and indexed data of around 25 lakh documents >> We recently moved to solr 5.4.1 but are unable to move our indexed >> data. What approach we should follow >> >> 1. data import handler works in solr cloud ? what should we give in >> url like url="http://192.168.34.218:8080/solr/client_sku_shard1_replica3"; >> , this will have shard name, so all documents won't be imported > > SolrEntityProcessor in DIH will only work if your index meets the > requirements for Atomic Updates. Basically, every field must be stored, > unless it is a copyField destination: > > https://wiki.apache.org/solr/Atomic_Updates#Caveats_and_Limitations > >> 2. direct copying of index will work ? There are some schema changes >> like from solr.Int to solr.TrieInt etc > > If the schema uses different classes, you will not be able to use the > old index directly. The schema would need to be completely unchanged, > but it sounds like your old schema is using classes that are no longer > present in 5.x. > >> 3. write code to fetch from solr 4.10.2 and push into 5.4.1 this is >> time consuming, though can be improved by using multithreading > > This has the same requirements as SolrEntityProcessor. > > A complete reindex in 5.x from the original data source would be the > best option, but if your index meets the Atomic Update requirements, you > could go with one of the options that you numbered 1 or 3. > > Thanks, > Shawn >
