Uploaded image for project: 'Documentation'
  1. Documentation
  2. DOCS-77

Should the storageSize sum of all collections of one database match the size on disk?

    XMLWordPrintableJSON

Details

    • Icon: Task Task
    • Resolution: Done
    • Icon: Major - P3 Major - P3
    • None
    • None
    • None
    • None
    • ext4, MongoDB 2.0.0

    Description

      size = 0; db.getCollectionNames().forEach(function(c)

      { size += db[c].stats().storageSize }

      } => 80401852864

      or

      db.stats()
      {
      "db" : "database_name",
      "collections" : 13,
      "objects" : 23654813,
      "avgObjSize" : 3204.532793558757,
      "dataSize" : 75802623984,
      "storageSize" : 80401864384,
      "numExtents" : 124,
      "indexes" : 23,
      "indexSize" : 2059164704,
      "fileSize" : 184527355904,
      "nsSizeMB" : 16,
      "ok" : 1
      }

      vs

      du -chs database_name.* => 172G

      Shouldn't these value roughly match?

      Attachments

        Activity

          People

            sam.kleinman Sam Kleinman (Inactive)
            dn@fromatob.com Nolte
            Votes:
            0 Vote for this issue
            Watchers:
            1 Start watching this issue

            Dates

              Created:
              Updated:
              Resolved:
              12 years, 15 weeks, 1 day ago