On 11/21/2017 9:10 AM, Zheng Lin Edwin Yeo wrote: > I am using the IndexMergeTool from Solr, from the command below: > > java -classpath lucene-core-6.5.1.jar;lucene-misc-6.5.1.jar > org.apache.lucene.misc.IndexMergeTool > > The heap size is 32GB. There are more than 20 million documents in the two > cores.
I have looked at IndexMergeTool, and confirmed that it does its job in exactly the same way that Solr does an optimize, so I would still expect a rate of 20 to 30 MB per second, unless it's running on REALLY old hardware that can't transfer data that quickly. Thanks, Shawn
