Is mongorestore command transactional?

[kumar]

HI All,

I am going to use "mongorestore" command in scheduled tasks,

Is mongorestore command transactional?
When any issue happened in middle of mongorestore, Will it come to
previous state without having new documents?

Thanks
Kumar

[Andreas Jung]

How should it be transactional without any transactional support within
MongoDB? So the very obvious answer is: NO

-aj

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[Eric Milkie]

Hi Kumar,

The mongorestore command isn't transactional; it simply does an insert for each document. As each document is inserted, it is able to be read by queries. If you shut down mongod and run mongorestore on database files that do not have a running database server, this can simulate a transaction, as you can avoid restarting the mongod server until mongorestore completes successfully.

-Eric