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  1. Core Server
  2. SERVER-76830

Compact does not free space

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    • Type: Icon: Bug Bug
    • Resolution: Done
    • Priority: Icon: Major - P3 Major - P3
    • None
    • Affects Version/s: 4.4.5
    • Component/s: None
    • Labels:
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      MongoDB three-node replica set, version v4.4.5.

      I removed some data in the collection on the PRIMARY node, and then I executed the compact command on the SECONDARY node, but the freeStorageSize was not released after execution, why?

       

      local-mongodb-one:SECONDARY> db.test_catch.stats()
{
        "ns" : "mdworkflow.test_catch",
        "size" : NumberLong("5555713675259"),
        "count" : 18994123,
        "avgObjSize" : 292496,
        "storageSize" : 811467612160,
        "freeStorageSize" : 30761287680,
        "capped" : false
}
local-mongodb-one:SECONDARY> db.runCommand({ compact:"test_catch" } )
{ "bytesFreed" : 0, "ok" : 1 }
local-mongodb-one:SECONDARY> db.test_catch.stats()
{
        "ns" : "mdworkflow.test_catch",
        "size" : NumberLong("5555714175181"),
        "count" : 18994126,
        "avgObjSize" : 292496,
        "storageSize" : 811467612160,
        "freeStorageSize" : 30761205760,
        "capped" : false
}

            Assignee:
            yuan.fang@mongodb.com Yuan Fang
            Reporter:
            wuyanfeiwork@gmail.com Yanfei Wu
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              Created:
              Updated:
              Resolved: