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From wwang525 <>
Subject Planning Solr migration to production: clean and autoSoftCommit
Date Fri, 10 Jul 2015 17:21:52 GMT

The following questions are about the basic configuration options in

We will have three machines: one indexing instance (master) and two Solr
instances (in different machines) for searching purpose. This way, we will
always have two Solr instances dedicated for executing search requests.

Right now, we are only considering re-build full index every once in a
while, so there will be no incremental indexing. 

I understand that the indexing instance can have the indexing parameter
"clean" to be set as true or false. If I set it as true, the search index in
the indexing instance will be cleaned up and anytime when I check the index,
it is going to grow.

The question is :

(1) Will the slave instance (for executing requests) get in sync with the
master if we set the "clean" to true? This is not what we would like it to
be since the search index will be clean up and grow. Customers will need to
wait for some period of time to search for the entire data pending the
completion of the indexing job

(2) The "autoSoftCommit" is supposed to make the update visible to search. I
also configured "autoSoftCommit" in solrconfig.xml in the master. When I set
the "clean" to true in the indexing job, what is the impact of this
parameter to the search requests executed in slave machine? 


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