Hello,
we are facing one strange issue in the Realtime Slowest operations. It seems that for every docker that connects to mongoDB we have one or more continuous admin.$cmd commands that are reading some thousands of documents.
All our dockers are NodeJS projects accessing the database via mongoose. One sample of the JSON RESPONSE is:
op: command
locks: Object
lockStats: Object
waitingForFlowControl: false
host: xxxx-shard-00-02-vckat.azure.mongodb.net:27017
microsecs_running: 8432221
currentOpTime: 2021-06-09T12:02:02.646+00:00
secs_running: 8
waitingForLock: false
flowControlStats: Object
type: op
active: true
opid: 34729718
ns: admin.$cmd
numYields: 0
waitingForLatch: Object
timestamp: Object
$date: 2021-06-09T12:01:54.314Z
captureName: FutureResolution
connectionId: 55945
clientMetadata: Object
driver: Object
name: nodejs|Mongoose
version: 3.6.6
os: Object
type: Linux
name: linux
architecture: x64
version: 5.4.0-1032-azure
platform: 'Node.js v10.15.3, LE (unified)
version: 3.6.6|5.12.5
desc: conn55945
client: xx.xx.xx.xx:49380
query: Object
$db: admin
ismaster: true
maxAwaitTimeMS: 10000
topologyVersion: Object
processId: Object
$oid: 60bd2bb49561137ee56a1868
counter: 8
$clusterTime: Object
clusterTime: Object
$timestamp: Object
t: 1623235570
i: 2
signature: Object
hash: Object
$binary: Object
base64: /YEfTf0O9ucqS31QdgoFKDLo0qg=
subType: 00
keyId: 6914106613016035000
We are using MongoDB version 4.4.6.
Do you have an idea on what type of activity the system is performing?
Thanks