Apache Solr Reference Guide Covering Apache Solr 6.0

Update handlers can also get commit-related parameters as part of the update URL. This example adds a small
test document and causes an explicit commit to happen immediately afterwards:
http://localhost:8983/solr/my_collection/update?stream.body=
testdoc&commit=true
Alternately, you may want to use this:
http://localhost:8983/solr/my_collection/update?stream.body=
This example causes the index to be optimized down to at most 10 segments, but won't wait around until it's
done ( waitFlush=false):
curl
'http://localhost:8983/solr/my_collection/update?optimize=true&maxSegments=10&waitFl
ush=false'
This example adds a small test document with a commitWithin instruction that tells Solr to make sure the
document is committed no later than 10 seconds later (this method is generally preferred over explicit commits):
curl http://localhost:8983/solr/my_collection/update?commitWithin=10000
-H "Content-Type: text/xml" --data-binary
'testdoc'
Changing default commitWithin Behavior
The commitWithin settings allow forcing document commits to happen in a defined time period. This is used
most frequently with Near Real Time Searching, and for that reason the default is to perform a soft commit. This
does not, however, replicate new documents to slave servers in a master/slave environment. If that's a
requirement for your implementation, you can force a hard commit by adding a parameter, as in this example:
false
With this configuration, when you call commitWithin as part of your update message, it will automatically
perform a hard commit every time.
RealTime Get
For index updates to be visible (searchable), some kind of commit must reopen a searcher to a new point-in-time
view of the index. The realtime get feature allows retrieval (by unique-key) of the latest version of any
documents without the associated cost of reopening a searcher. This is primarily useful when using Solr as a
NoSQL data store and not just a search index.
Real Time Get relies on the update log feature, which is enabled by default and can be configured in solrconf
ig.xml:
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