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Percona XtraDB Cluster: “dh key too small” error during an SST using SSL

 | April 23, 2017 |  Posted In: Percona XtraDB Cluster, Security, XtraDB Cluster

wsrep-stages

If you’ve tried to use SSL in Percona XtraDB Cluster and saw an error in the logs like SSL3_CHECK_CERT_AND_ALGORITHM:dh key too small, we’ve implemented some changes in Percona XtraDB Cluster 5.6.34 and 5.7.16 that get rid of these errors. Some background dh key too small refers to the Diffie-Hellman parameters used by the SSL code that are […]

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