Doris Cross Cluster Replication（CCR）no such host

[zhanghp189]

我打算在两个doris集群之间进行跨集群数据复制（CCR），两个doris集群都是基于kubernetes/operator部署的，版本为2.1.7。
通过curl ... create_ccr之后报“no such host”错误：
I am performing Cross Cluster Replication(CCR) between two doris clusters. Both doris clusters are deployed on kubernetes/operator, version 2.1.7.
After curl...create_ccr, a "no such host" error is reported:

{"success":false,"error_msg":"get url: http://doriscluster-helm-be-1.doriscluster-helm-be-internal.doris.svc.cluster.local:8040/api/show_config?conf_item=enable_feature_binlog failed: [normal] Get \"[http://doriscluster-helm-be-1.doriscluster-helm-be-internal.doris.svc.cluster.local:8040/api/show_config?conf_item=enable_feature_binlog\":](http://doriscluster-helm-be-1.doriscluster-helm-be-internal.doris.svc.cluster.local:8040/api/show_config?conf_item=enable_feature_binlog\%22:) dial tcp: lookup doriscluster-helm-be-1.doriscluster-helm-be-internal.doris.svc.cluster.local: no such host"}

自己分析原因认为是show backends获取到的host是kubernetes的fqdn，集群外部访问不通。
analyzed the reason myself and thought that the host obtained by "show backends" was the fqdn of kubernetes, and the fqdn could not be accessed from outside.

有没有办法将上述host配置成为外部可访问的形式？
或者有没有其他建议能让两个集群之间成功实现ccr？
Is there any way to configure the above host to be accessible externally?
Or any suggestions to successfully implement CCR between two kubernetes clusters?

[catpineapple]

For the source and destination databases, you need to ensure that your ccr node can access their network environment in the k8s environment, and at the same time ensure that the two can access each other's network.

[zhanghp189]

@catpineapple Thank you for your help. Actually my fe/be host(pod) can be accessed from external network (NodePort), the problem is that I don't know how to config the host of "show backends" to become ip+NodePort (currently fqdn).

[catpineapple]

Or , you need to wait for this capability to be officially released, or you can allow the host to be accessible from the external network #42881