Hi,

    We are migrating or solr from 3.5 to 4.4, but stuck at the strategy to
migrate the index.

     I read that we can point the new solr 4.4 to the data index from
previous solr i.e. 3.5. Is my understanding correct? If this is true, can
we change the schema in 4.4 solr. We have many un-stored fields in solr 3.5
schema, which we would like to make stored, so that we can take the
advantage of atomic updates.

     If we cannot change the schema, what is the other best strategy
suggested to do the migration?.

     If we do a csv export from 3.5 solr and then import it in the 4.4
index, we get a problem with copy fields i.e. the value in the copy field
is computed twice. Once from the csv import and other from solr internal
computation.

Is there any other way, by which we can migrate the index from 3.5 to 4.4
solr?.

Looking forward for your reply.

Thanks.
Kuchekar, Nilesh

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