Dear Mongo,

I'm writing regarding mongo WriteConflictException. We're using this server in production and problem happens to often.

Here is what we got:

• OS --> Debian Stretch 9.4
• RAM --> 125 GB
• CPU --> Intel Xeon CPU E5-2620 v4 2.10GHz (32 cores)
• HDD --> 916 GB (we're not using XFS, instead we're using EXT4)
• MongoDB --> Version 3.6.3
• Installation is done following this manual (https://docs.mongodb.com/manual/tutorial/install-mongodb-on-debian), package libssl1.0.0:amd64 (1.0.1t-1+deb8u7) is also installed.
• Mongo service is started using systemd service with numactl

In attachment I'm providing you a part of log that looks suspicious to me.

If you need any additional information, please let me know.

Thank you very much