Uploaded image for project: 'Lucene - Core'
  1. Lucene - Core
  2. LUCENE-9127

index migration from 7 to 8 failing

    XMLWordPrintableJSON

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Information Provided
    • Affects Version/s: 8.4
    • Fix Version/s: None
    • Component/s: core/index
    • Labels:
      None
    • Lucene Fields:
      New

      Description

      we have been using solr4 for more than 16 year, now it is to time to upgrade, when we have decided to upgrade, started with migrating index from 4 -> 5, 5 -> 6, 6 -> 7, it was working as expected, but when it comes to 7 -> 8 , it give me errors.

       Exception in thread "main" org.apache.lucene.index.IndexFormatTooOldException: Format version is not supported (resource BufferedChecksumIndexInput(MMapIndexInput(path="/deploy/solrmaster/data/data/<name>/index/segments_4n"))): This index was initially created with Lucene 6.x while the current version is 8.4.0 and Lucene only supports reading the current and previous major versions.. This version of Lucene only supports indexes created with release 7.0 and later.
      java -cp ./lucene-core-8.4.0.jar:./lucene-backward-codecs-8.4.0.jar org.apache.lucene.index.IndexUpgrader /deploy/solrmaster/data/data/job/index -verbose 

       

        Attachments

          Activity

            People

            • Assignee:
              Unassigned
              Reporter:
              nbommu Niranjan
            • Votes:
              0 Vote for this issue
              Watchers:
              2 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved: