Uploaded image for project: 'Jackrabbit Oak'
  1. Jackrabbit Oak
  2. OAK-9345

Query performance issue

    XMLWordPrintableJSON

Details

    • Bug
    • Status: Open
    • Critical
    • Resolution: Unresolved
    • None
    • None
    • query
    • None
    • DocumentNodeStoreService: RDB

      Oracle 18C

      Jackrabbit OAK  1.36

    Description

      Added over 5 million documents to Jackrabbit OAK after that performance problems started with following query. Using Oracle DB for DocumentNodeStoreService  It s doing table access full scans.

      
      select ID, MODIFIED, MODCOUNT, CMODCOUNT, HASBINARY, DELETEDONCE, VERSION, SDTYPE, SDMAXREVTIME, DATA, BDATA
       from NODES where ID > :1
       and ID < :2
       order by ID FETCH FIRST ? ROWS ONLY
      
      

      Looks like  Oracle DB  oes not like ID column index and switches to table full scan, because ID column is not number.    As a solution probably index hint need to be added and there should index name for ID column.

       

       

      Attachments

        1. repository-config_rdb.json
          2 kB
          Ivar Suits

        Activity

          People

            Unassigned Unassigned
            isuits Ivar Suits
            Votes:
            0 Vote for this issue
            Watchers:
            1 Start watching this issue

            Dates

              Created:
              Updated: