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Upgrade from Logstash 2.3.4 to 2.4.0 causes beats input to fail due to PKCS8 error #5865
Upon upgrading from 2.3.4 to 2.4.0, i started getting this error due to my beats inputs:
Although the breaking changes does not indicate this error would occur with the beats input unless the key is converted to PKCS8 format. Although I realize this was an issue with the logstash-input-beats plugin and not directly logstash itself, upgrading to logstash 2.4.0 directly caused logstash to upgrade to logstash-input-beats plugin >= 3.1.0, which introduces the changes to how the keys/certs are handled.
I finally found out this was documented on a blog post although this probably should have also been indicated in the breaking changes as it is relatively major considering events were no longer being processed due to this.