Upgrade solr 4.10 index to solr 5.5

Question

I am trying to upgrade a current solr 4.10.4 setup to solr 5.5.5. Does anyone knows how do I upgrade the index?

score 0 · Answer 1 · answered Jan 16 '19 at 08:11

0

You can run the IndexUpgrader tool. More details here:

And in the migration doc:

answered Jan 16 '19 at 08:11

jspcal

where is this lucene-core.jar located? – Moses Liao GZ Jan 16 '19 at 08:19
core/lucene-core.jar-x.y.z.jar – jspcal Jan 16 '19 at 08:27
thanks! is it suppose to be run when solr is stopped or something? – Moses Liao GZ Jan 16 '19 at 08:50
Yes the index shouldn't be modified during the upgrade. – jspcal Jan 16 '19 at 08:52
I got this error `Exception in thread "main" java.lang.IllegalArgumentException: Could not load codec 'Lucene410'. Did you forget to add lucene-backward-codecs.jar?` – Moses Liao GZ Jan 16 '19 at 09:54
Try adding lucene-backward-codecs.jar to your classpath. The jar should be included in the directory tree. – jspcal Jan 17 '19 at 07:24
Strange, I still faced the same problem. Is it because I use lucene-backward-codecs-5.5.5.jar? Should I be using 4.10 codecs? – Moses Liao GZ Jan 17 '19 at 13:09
you take a look at https://stackoverflow.com/questions/54237232/unable-to-run-solr-5-index-upgrader – Moses Liao GZ Jan 17 '19 at 13:43

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