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Type:
Bug
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Resolution: Duplicate
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Priority:
Critical - P2
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None
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Affects Version/s: 100.15.0
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Component/s: mongorestore
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None
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Tools and Replicator
Problem Statement/Rationale
mongorestoe 100.15.0 generates randomly an error while restoring a dump created
mongodump "mongodb://****************:****************@10.100.100.201,10.100.100.203,10.100.100.201:27017/prod?authSource=admin&readPreference=secondaryPreferred" -d prod --excludeCollection=logs --excludeCollection=serverlog --excludeCollection=actions --excludeCollection=shell_out --archive="/data/prod/prod_2026-03-23T13:05:51Z.archive" --gzip
mongorestore --drop 'mongodb://********:********@10.100.201.100:27017,10.100.100.202:27017/?authSource=admin' --numInsertionWorkersPerCollection=8 --writeConcern="{w:1}" --gzip --archive=/data/tmp/prod.archive --nsFrom 'prod.*' --nsTo 'prod-clone.*'
Steps to Reproduce
We have tried multiple times on multiple dumps from different DBs, on various MongoDB clusters (with the exact same mongod version on Ubuntu), the result is a bit random, as it can succeed, then failed.
Expected Results
Restore ending successfully 
Actual Results
Exiting in error:
....
{"t":\{"$date":"2026-03-23T17:35:55.090+00:00"},"s":"I", "c":"NETWORK", "id":4615638, "ctx":"conn229","msg":"recv(): message mstLen is invalid.","attr":{"msgLen":48000045,"min":16,"max":48000000}}
...
,"s":"I", "c":"EXECUTOR", "id":22988, "ctx":"conn229","msg":"Error receiving request from client. Ending connection from remote","attr":{"error":
{"code":17,"codeName":"ProtocolError","errmsg":"recv(): message msgLen 48000045 is invalid. Min 16 Max: 48000000"},"remote":"10.100.199.23:43950","connectionId":229}}
...
,"s":"I", "c":"NETWORK", "id":4615638, "ctx":"conn295","msg":"recv(): message mstLen is invalid.","attr":{"msgLen":48000045,"min":16,"max":48000000}}
{"t":\{"$date":"2026-03-23T17:35:55.131+00:00"},"s":"I", "c":"EXECUTOR", "id":22988, "ctx":"conn295","msg":"Error receiving request from client. Ending connection from remote","attr":{"error":
{"code":17,"codeName":"ProtocolError","errmsg":"recv(): message msgLen 48000045 is invalid. Min 16 Max: 48000000"},"remote":"10.100.199.23:53450","connectionId":295}}
Additional Notes
The error seems a bit random, as it can succeed 3 times, then failing twice, resatrting mongod does not help.
server versions:
driver: { [-]
name: MongoDB Internal Client
version: 7.0.28
}
os: { [-]
architecture: x86_64
name: Ubuntu
type: Linux
version: 20.04
}
- duplicates
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- Closed
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