You don't have to stop solr to run the merge index tool. I would, however, stop _indexing_ to that Solr instance.
And you probably have to reload the core (or restart the collection) afterwards to pick up the merged documents. Best, Erick On Fri, Sep 1, 2017 at 6:46 AM, Zheng Lin Edwin Yeo <edwinye...@gmail.com> wrote: > Hi, > > Just to check, are we able to run the IndexMergeTool on the index that is > still running on Solr? Or do we have to stop Solr first before running the > IndexMergeTool? > > Regards, > Edwin > > On 26 August 2017 at 23:41, Zheng Lin Edwin Yeo <edwinye...@gmail.com> > wrote: > >> Thanks for pointing out the mistake. The script can run after I correct >> the ":" to ";". >> >> However, I am getting the following error now. >> >> Merging... >> Exception in thread "main" org.apache.lucene.index.IndexNotFoundException: >> no se >> gments* file found in HardlinkCopyDirectoryWrapper(MMapDirectory@C:\solr\ >> collection1_shard1_replica1\data\in >> dex lockFactory=org.apache.lucene.store.NativeFSLockFactory@1ff8b8f): >> files: [wr >> ite.lock] >> at org.apache.lucene.index.SegmentInfos$FindSegmentsFile. >> run(SegmentInfo >> s.java:687) >> at org.apache.lucene.index.SegmentInfos$FindSegmentsFile. >> run(SegmentInfo >> s.java:644) >> at org.apache.lucene.index.SegmentInfos.readLatestCommit( >> SegmentInfos.ja >> va:450) >> at org.apache.lucene.index.IndexWriter.addIndexes( >> IndexWriter.java:2653) >> >> at org.apache.lucene.misc.IndexMergeTool.main( >> IndexMergeTool.java:54) >> >> >> This was done after I have stop Solr. What could be the issue here? >> >> Regards, >> Edwin >> >> On 26 August 2017 at 08:42, Leonardo Perez Pulido < >> leoperezpul...@gmail.com> wrote: >> >>> Hi, >>> Isn't the Windows classpath separator a semi-colon? Like this: >>> cene-core-6.5.1.jar"*;*"C:solr/serve >>> Just saying. >>> Regards. >>> >>> On Fri, Aug 25, 2017 at 8:33 PM, Zheng Lin Edwin Yeo < >>> edwinye...@gmail.com> >>> wrote: >>> >>> > Hi Erick, >>> > >>> > Thanks for your reply. >>> > I have check, it was not due to the typo. The same error occurs even >>> with >>> > the slash. >>> > >>> > Regards, >>> > Edwin >>> > >>> > On 26 August 2017 at 05:16, Erick Erickson <erickerick...@gmail.com> >>> > wrote: >>> > >>> > > You classpath is not correct. Unless it's a typo, >>> > > :"C:solr/server/solr-webapp/webapp/WEB-INF/lib/lucene-misc-6.5.1.jar" >>> > > is wrong, it should be: >>> > > "C:/solr/server/solr-webapp/webapp/WEB-INF/lib/lucene-misc- >>> 6.5.1.jar", >>> > > note the slash before "solr". >>> > > >>> > > If that's not just a typo you need to look further as to why the >>> > > classpath isn't being specified correctly. >>> > > >>> > > Best, >>> > > Erick >>> > > >>> > > On Thu, Aug 24, 2017 at 7:52 PM, Zheng Lin Edwin Yeo >>> > > <edwinye...@gmail.com> wrote: >>> > > > Hi, >>> > > > >>> > > > I am trying to use the IndexMergeTool to merge two indexes that are >>> > > indexed >>> > > > in different collections into one. Both collections have the same >>> > fields, >>> > > > and are using Parent-Child Block-Join. >>> > > > >>> > > > When I tried to run the following command as stated from the Solr >>> Wiki >>> > > > https://cwiki.apache.org/confluence/display/solr/Merging+Indexes >>> > > > >>> > > > java -cp >>> > > > "C:/solr/server/solr-webapp/webapp/WEB-INF/lib/lucene- >>> > > core-6.5.1.jar":"C:solr/server/solr-webapp/webapp/WEB- >>> > > INF/lib/lucene-misc-6.5.1.jar" >>> > > > org/apache/lucene/misc/IndexMergeTool >>> > > > C:/solr/collectionMerge_shard1_replica1/data/index >>> > > > C:/solr/collection1_shard1_replica1/data/index >>> > > > C:/solr/collection2_shard1_replica1/data/index >>> > > > >>> > > > I get the following error: >>> > > > Error: Could not find or load main class >>> > > > org.apache.lucene.misc.IndexMergeTool >>> > > > >>> > > > What could be causing the error? >>> > > > >>> > > > This is done on Solr 6.5.1 >>> > > > >>> > > > Regards, >>> > > > Edwin >>> > > >>> > >>> >> >>
