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IBM has asked us to update this warning on the 3.4 release notes page:
https://docs.mongodb.com/manual/release-notes/3.4/#platform-support
From their email:
Hi Andrew,
We need an update to be made in the MongoDB 3.4 release notes regarding the glibc bug . See snapshot below. Currently it states not to run in production. Now that the problem is fixed, this document needs to be changed to state that the fix is included in glibc - 2.23-0ubuntu5 or newer version.
I'd suggest that we retain the warning, but rephrase it:
Package Updates required on Ubuntu 16.04 for IBM POWER Systems
Due to a lock elision bug present in older versions of the glibc package on Ubuntu 16.04 for POWER, you must upgrade the glibc package to at least glibc 2.23-0ubuntu5 before running MongoDB. Systems with older versions of the glibc package will experience database server crashes and misbehavior due to random memory corruption, and are unsuitable for production deployments of MongoDB.
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