Hadoop 2 supports OpenSSL 1.0.2.
Hadoop 3 supports OpenSSL 1.1.0 (
HADOOP-14597) and I believe 1.0.2 too.
Per OpenSSL blog https://www.openssl.org/policies/releasestrat.html
- 1.1.0 is EOL 2019/09/11
- 1.0.2 EOL 2019/12/31
- 1.1.1 is EOL 2023/09/11 (LTS)
Many Hadoop installation relies on the OpenSSL package provided by Linux distros, but it's not clear to me if Linux distros are going support 1.1.0/1.0.2 beyond this date.
We should make sure Hadoop works with OpenSSL 1.1.1, as well as document the openssl version supported. File this jira to test/document/fix bugs.