Upgrading containerd from 1.7 to 2.x? Read this first!
Upgrading from containerd 1.7 to 2.x as part of an HCL Connections Component Pack upgrade may introduce an unexpected issue: the default open file limit is no longer set to infinity. In larger or heavily used environments, this can lead to EMFILE (Too many open files) errors and application instability, as we experienced with MongoDB after upgrading to CR14. This article explains the change, how to identify whether your environment is affected, and the steps required to restore the previous behavior and verify the fix.
Continue reading
