Thanks for your help, Tim: I'm afraid that I keep hitting a wall when I try to upgrade to DSpace 5.1
I tried to go directly from DSpace 1.8.2 to DSpace 5.1 and got: ERROR occurred while checking Solr index version: Exception in thread "main" java.io.IOException: Could not read Lucene segments files in /cul/app/dspace/solr/statistics/data/index We have been using our own stats gathering system instead of the one within DSpace. So, I removed the statistics index but then I got: Exception in thread "main" java.io.IOException: Could not read Lucene segments files in /cul/app/dspace/solr/search/data/index This version of Lucene only supports indexes created with release 3.0 and later. So, I went ahead and used the DSpace 4.3 version of our solr indexes (without the statistics). It ran fine and everything got upgraded, but when I tried to do any searching, I get the "write lock error". If I turn off tomcat, delete the write lock and restart things, I get the same thing. Also, I cannot update the discovery index because of the write lock problem. By the way, I did try the manual upgrade of the Solr indexes defined in the manual, but that didn't work for me, either. So, right now, it looks like I can only upgrade to DSpace 4.3, unless you have some more suggestions for me. George Kozak Digital Library Specialist Cornell University Library Information Technologies (CUL-IT) 218 Olin Library Cornell University Ithaca, NY 14853 607-255-8924 -----Original Message----- From: Tim Donohue [mailto:tdono...@duraspace.org] Sent: Tuesday, April 07, 2015 9:31 AM To: George Stanley Kozak; dspace-tech@lists.sourceforge.net Subject: Re: [Dspace-tech] Error after install of DSpace 5.1 (Additional information) Hi George, Yes, that is what I was suggesting...upgrading directly from 1.8.2 or 3.3 (whichever was your starting point) to 5.1. The "ant update" should take care of the necessary Solr index upgrades for you. - Tim On 4/6/2015 6:21 PM, George Stanley Kozak wrote: > Tim: > > Thank you for your advice. I did try the 5.1 ant update, but it failed. > Maybe if I tried it going from DSpace 3.3 or 1.8.2 directly to DSpace 5.1 > instead of doing the intermediate step to 4.3, this might work? I will try a > few other things and let everyone know what works. > > George Kozak > Digital Library Specialist > Cornell University Library Information Technologies (CULIT) > 218 Olin Library > Cornell University > Ithaca, NY 14853 > 607-255-8924 > > ________________________________________ > From: Tim Donohue <tdono...@duraspace.org> > Sent: Monday, April 6, 2015 4:44 PM > To: dspace-tech@lists.sourceforge.net > Subject: Re: [Dspace-tech] Error after install of DSpace 5.1 (Additional > information) > > Hi George, > > The error below is essentially saying that your Solr statistics index > is "too old" for the version of Solr packages with DSpace 4.3 to upgrade. > > However, in the DSpace 5.1 upgrade process, during the "ant update" > step, we've attempted to catch this scenario automatically -- we try > to determine the version of a Solr index, and upgrade it automatically > to the latest version. > > So, I'd recommend trying to point DSpace 5.1 at your old Solr index, > and running "ant update". It is supposed to upgrade an old index > automatically. > > If that doesn't work for some reason, another option is to do a more > manual upgrade, as described in the DSpace 5.x documentation. This > manual upgrade essentially requires downloading multiple versions of > the Solr/Lucene core JAR, and running it against your index in order > to upgrade it to the latest compatible version (this is essentially > the same process that is now automated by "ant update" though) > > https://wiki.duraspace.org/display/DSDOC5x/Upgrading+DSpace#UpgradingD > Space-ManuallyUpgradingSolrIndexes > > By the way, from your earlier messages, recently I also did encounter > that odd Solr "write.lock" error ("Index locked for write..") during a > recent upgrade I tried to 5.1. In my situation, it seemed like it was > a stale "write.lock" file which was somehow sitting around. After > clearing it out, the upgrade proceeded. Admittedly, I still need to > dig a bit further and ensure my analysis is correct. > > - Tim > > On 4/1/2015 3:16 PM, George Stanley Kozak wrote: >> Hi, Everyone: >> >> I have discovered that when I try to optimize my Solr indexes when I >> upgraded from DSpace 3.3 to 4.3 >> >> (wget 'http://localhost:8080/solr/statistics/update?optimize=true') >> >> I get the following errors in the solr logs: >> >> ERROR org.apache.solr.core.CoreContainer @ Unable to create core: >> statistics >> >> Format version is not supported (resource: segment _32 in resource >> ChecksumIndexInput(MMapIndexInput(path="/cul/app/dspace/solr/statistics/data/index/segments_1p0"))): >> 2.x. This version of Lucene only supports indexes created with >> release >> 3.0 and later. >> >> If I later try to upgrade to 5.1, I see during the ant update: >> >> /cul/app/dspace/src/dspace-5.1-src-release/dspace/target/dspace-installer/build.xml:1061: >> ERROR occurred while checking Solr index version: >> >> Exception in thread "main" java.io.IOException: Could not read Lucene >> segments files in /cul/app/dspace/solr/statistics/data/index >> >> I know the 5.1 documentation states that you can manually update the >> Solr indexes. Should that be done in my 4.3 upgrade before I try to >> go to 5.1 or should it be done in the 5.1 upgrade? >> >> George Kozak >> >> Digital Library Specialist >> >> Cornell University Library Information Technologies (CUL-IT) >> >> 218 Olin Library >> >> Cornell University >> >> Ithaca, NY 14853 >> >> 607-255-8924 >> >> >> >> >> >> --------------------------------------------------------------------- >> --------- Dive into the World of Parallel Programming The Go Parallel >> Website, sponsored by Intel and developed in partnership with >> Slashdot Media, is your hub for all things parallel software >> development, from weekly thought leadership blogs to news, videos, >> case studies, tutorials and more. 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