Does SolrEntityProcessor fulfill my requirements?

[Vadim Kisselmann <v....@gmail.com>]

Hi folks,

i have this case:
i want to update my solr 4.0 from trunk to solr 4.0 alpha. the index
structure has changed, i can't replicate.
10 cores are in use, each with 30Mio docs. We assume that all fields
are stored and indexed.
What is the best way to export the docs from all cores on one machine
with solr 4.0trunk to same named cores on other machine with solr 4.0
alpha.
SolrEntityProcessor can be one solution, but does it work with this
size of data? I want reindex all docs at once and not in "small"
parts. I find no examples
of bigger reindex-attempts with SolrEntityProcessor.
Xslt as option two?
What were the best solution to do this, what do you think?

Best Regards
Vadim