我使用ElasticSearch7.12.0版本。我有自己的ssl证书。我使用下面的代码将ssl设置为elasticsearch。

xpack.security.enabled: true
xpack.security.transport.ssl.enabled: true
xpack.security.transport.ssl.verification_mode: certificate
xpack.security.transport.ssl.keystore.path: 
xpack.security.transport.ssl.truststore.path: 
xpack.security.transport.ssl.keystore.password: 
xpack.security.transport.ssl.truststore.password: 
xpack.security.http.ssl.keystore.password: 
xpack.security.http.ssl.truststore.password:

我只有一张证书。所以，我把它放在keystore路径和truststore路径上。是p12分机。
在每个节点中修改elasticsearch.yml后，我尝试运行节点。当我运行节点时，我得到以下错误，

empty client certificate chain