What do you really want to do/accomplish? I mean, for what purpose?
You can turn on the Lucene infostream for logging of index writing.
See:
https://cwiki.apache.org/confluence/display/solr/IndexConfig+in+SolrConfig
Set <infostream> to "true".
There are some examples in my e-book.
-- Jack Krupansky
-----Original Message-----
From: Jacky.J.Wang (mis.cnsh04.Newegg) 41361
Sent: Wednesday, November 27, 2013 7:41 PM
To: solr-user@lucene.apache.org
Subject: (info) how view lucene merge process
Hello lucene
how view lucene merge process?