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  1. Core Server
  2. SERVER-37049

MongoDB 3.6.7 arbiters continuously log "Using sessions while not fully upgraded to FCV3.6" even though replset is FCV3.6

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    • Type: Icon: Bug Bug
    • Resolution: Duplicate
    • Priority: Icon: Major - P3 Major - P3
    • None
    • Affects Version/s: 3.6.7
    • Component/s: None
    • None
    • ALL
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      m 3.6.7
mlaunch init --replicaset --nodes 2 --arbiter
tail -f data/replset/arb/mongod.log

      Arbiter log shows a constant stream of:

      2018-09-07T11:03:32.057-0600 I -        [conn12] Using sessions while not fully upgraded to FCV3.6
2018-09-07T11:03:33.089-0600 I -        [conn11] Using sessions while not fully upgraded to FCV3.6
2018-09-07T11:03:34.060-0600 I -        [conn12] Using sessions while not fully upgraded to FCV3.6
2018-09-07T11:03:35.091-0600 I -        [conn11] Using sessions while not fully upgraded to FCV3.6

      mlaunch stop
m 3.6.6
mlaunch start

      Arbiter restarts and FCV messages stop appearing.

      mlaunch stop
m 3.6.7
mlaunch start

      Arbiter restarts and FCV messages spam the arbiter log again.

      Show
      m 3.6.7 mlaunch init --replicaset --nodes 2 --arbiter tail -f data/replset/arb/mongod.log Arbiter log shows a constant stream of: 2018-09-07T11:03:32.057-0600 I - [conn12] Using sessions while not fully upgraded to FCV3.6 2018-09-07T11:03:33.089-0600 I - [conn11] Using sessions while not fully upgraded to FCV3.6 2018-09-07T11:03:34.060-0600 I - [conn12] Using sessions while not fully upgraded to FCV3.6 2018-09-07T11:03:35.091-0600 I - [conn11] Using sessions while not fully upgraded to FCV3.6 mlaunch stop m 3.6.6 mlaunch start Arbiter restarts and FCV messages stop appearing. mlaunch stop m 3.6.7 mlaunch start Arbiter restarts and FCV messages spam the arbiter log again.

      Arbiters in MongoDB 3.6.7 continuously log the following once per second even though the FCV for the replset is FCV3.6:

      2018-09-07T11:14:41.656-0600 I -        [conn6] Using sessions while not fully upgraded to FCV3.6
2018-09-07T11:14:42.657-0600 I -        [conn10] Using sessions while not fully upgraded to FCV3.6
2018-09-07T11:14:43.657-0600 I -        [conn6] Using sessions while not fully upgraded to FCV3.6
2018-09-07T11:14:44.658-0600 I -        [conn10] Using sessions while not fully upgraded to FCV3.6

       
      Verifying FCV version...

      > db.adminCommand({getParameter:1, featureCompatibilityVersion:1})
{
  "featureCompatibilityVersion": {
    "version": "3.6"
  },
  "ok": 1,
  "operationTime": Timestamp(1536341388, 1),
  "$clusterTime": {
    "clusterTime": Timestamp(1536341388, 1),
    "signature": {
      "hash": BinData(0, "AAAAAAAAAAAAAAAAAAAAAAAAAAA="),
      "keyId": NumberLong("0")
    }
  }
}

            Assignee:
            tess.avitabile@mongodb.com Tess Avitabile (Inactive)
            Reporter:
            james.kovacs@mongodb.com James Kovacs
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              Created:
              Updated:
              Resolved: