Failed to start up WiredTiger under any compatibility version

itsocotecgroup_N_A · 2024-07-01T12:24:52.187Z

Hi I have ubuntu 24.04 installed and mongodb built : db version v7.0.11
Build Info: {
“version”: “7.0.11”,
“gitVersion”: “f451220f0df2b9dfe073f1521837f8ec5c208a8c”,
“openSSLVersion”: “OpenSSL 3.0.2 15 Mar 2022”,
“modules”: ,
“allocator”: “tcmalloc”,
“environment”: {
“distmod”: “ubuntu2204”,
“distarch”: “x86_64”,
“target_arch”: “x86_64”
}
}
I am trying to setup a replica set with two nodes (one Linux Mint and One ubuntu 24.04), and when i start mongod after providing configurations (mongod.conf) on both nodes. The mongod service keeps failing with the error: :“Failed to start up WiredTiger under any compatibility version. This may be due to an unsupported upgrade or downgrade.”

I am unable to fix this error and not sure if this could be due to my local OS. Please help me understand as I am new to using Mongodb community edition

Saipraneeth_Vaddineni · 2024-10-21T18:42:17.719Z

Hi @itsocotecgroup_N_A

Please go through below documentation and check whether the os version you’re using supports mongo version 7.0.
https://www.mongodb.com/docs/manual/administration/production-notes/

I faced this error when I upgraded unsupported mongo version in ubuntu 20.04, and why are you using different os for replica set, moreover, you need to have 3 nodes in your replica set to achieve election quorum.

itsocotecgroup_N_A · 2024-10-22T10:21:56.081Z

Hello Mr. Sai, Thanks for your input. We are using two node setup just for testing purpose and I don’t think this contributes to the issue.
I have resolved the issue (turned out simply it was the permission issues for the socket and PID file)