# When SSL is used ,unable to start the cluster - PXC 8.0.27

**URL:** <https://forums.percona.com/t/when-ssl-is-used-unable-to-start-the-cluster-pxc-8-0-27/16565>\
**Category:** Percona XtraDB Cluster\
**Tags:** mysql, percona\
**Created:** [July 14, 2022, 11:51am UTC](https://forums.percona.com/t/when-ssl-is-used-unable-to-start-the-cluster-pxc-8-0-27/16565 "2022-07-14T11:51:47Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![AneeshBabu](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/aneeshbabu/32/1393_2.png) [@AneeshBabu](https://forums.percona.com/u/AneeshBabu)\
**Post date:** [July 14, 2022, 11:51am UTC](https://forums.percona.com/t/when-ssl-is-used-unable-to-start-the-cluster-pxc-8-0-27/16565/1 "2022-07-14T11:51:48Z")

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Hi there,

Server configurations Details :

```auto
AWS EC2 instances
m5a.xlarge - AMD EPYC 7000 series processors .

```

Iam able to configure/start the PXC 8.0.27 cluster when the `ssl parmameters` are disabled,and unable to start the cluster with ssl parameters enabled (mentioned below…).  
Is there any issue with AMD processors…?

```auto
pxc-encrypt-cluster-traffic=on

  [sst]
   encrypt = 4
   ssl-ca=/etc/mysql/certs/ca.pem
   ssl-cert=/etc/mysql/certs/server-cert.pem
   ssl-key=/etc/mysql/certs/server-key.pem

```

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<div class="post-metadata">

**Author:** ![danarashad](https://avatars.discourse-cdn.com/v4/letter/d/7ab992/32.png) [@danarashad](https://forums.percona.com/u/danarashad)\
**Post date:** [July 14, 2022, 2:49pm UTC](https://forums.percona.com/t/when-ssl-is-used-unable-to-start-the-cluster-pxc-8-0-27/16565/2 "2022-07-14T14:49:28Z")

</div>

make sure all nodes have the same certs. copy the certs from one node to all of the other nodes.