Nj-kol opened a new issue, #325:
URL: https://github.com/apache/doris-spark-connector/issues/325

   ### Search before asking
   
   - [x] I had searched in the 
[issues](https://github.com/apache/incubator-doris/issues?q=is%3Aissue) and 
found no similar issues.
   
   
   ### Version
   
   25.1.0
   
   ### What's Wrong?
   
   I am running doris in k8s, and want to write to it using spark. getting the 
below exception
   
   ```shell
   java.net.UnknownHostException: 
doris-disaggregated-cluster-cg1-0.doris-disaggregated-cluster-cg1.doris.svc.cluster.local
           at 
java.base/java.net.InetAddress$CachedLookup.get(InetAddress.java:988)
   ```
   
   I believe this is happening because Spark contacts FE to get a list of 
backend/compute nodes, and then once the IP/port  of the compute nodes is 
attained, it directly contacts the compute groups. 
   
   The issue is in Kubernetes when compute groups spin up, they register 
themselves to FE nodes using their internal FQDN, which are not reachable 
outside.
   
   ```sql
   mysql> show backends;
   
+---------------+-------------------------------------------------------------------------------------------+---------------+--------+----------+----------+--------------------+---------------------+---------------------+-------+----------------------+-----------+------------------+-------------------+---------------+---------------+---------+----------------+--------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+--------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+-------------------------+----------+----------+---------+
   | BackendId     | Host                                                       
                               | HeartbeatPort | BePort | HttpPort | BrpcPort | 
ArrowFlightSqlPort | LastStartTime       | LastHeartbeat       | Alive | 
SystemDecommissioned | TabletNum | DataUsedCapacity | TrashUsedCapacity | 
AvailCapacity | TotalCapacity | UsedPct | MaxDiskUsedPct | RemoteUsedCapacity | 
Tag                                                                             
                                                                                
                                                         | ErrMsg | Version     
                | Status                                                        
                                                                                
                                              | HeartbeatFailureCounter | 
NodeRole | CpuCores | Memory  |
   
+---------------+-------------------------------------------------------------------------------------------+---------------+--------+----------+----------+--------------------+---------------------+---------------------+-------+----------------------+-----------+------------------+-------------------+---------------+---------------+---------+----------------+--------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+--------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+-------------------------+----------+----------+---------+
   | 1750574093851 | 
doris-disaggregated-cluster-cg1-0.doris-disaggregated-cluster-cg1.doris.svc.cluster.local
 | 9050          | 9060   | 8040     | 8060     | -1                 | 
2025-06-22 06:35:21 | 2025-06-22 06:41:07 | true  | false                | 33   
     | 0.000            | 0.000             | 1.000 B       | 0.000         | 
0.00 %  | 0.00 %         | 0.000              | {"cloud_unique_id" : 
"1:1030729153:dnDaSeQC", "compute_group_status" : "NORMAL", "private_endpoint" 
: "", "compute_group_name" : "cg1", "location" : "default", "public_endpoint" : 
"", "compute_group_id" : "xdReRUSR"} |        | doris-3.0.5-rc01-e277cfb83f | 
{"lastSuccessReportTabletsTime":"N/A","lastStreamLoadTime":-1,"isQueryDisabled":false,"isLoadDisabled":false,"isActive":true,"currentFragmentNum":0,"lastFragmentUpdateTime":1750574458773}
 | 0                       | mix      | 32       | 4.00 GB |
   
+---------------+-------------------------------------------------------------------------------------------+---------------+--------+----------+----------+--------------------+---------------------+---------------------+-------+----------------------+-----------+------------------+-------------------+---------------+---------------+---------+----------------+--------------------+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+--------+-----------------------------+---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+-------------------------+----------+----------+---------+
   ```
   
   
   ### What You Expected?
   
   Just like there is configuration for `doris.fenodes` and `doris.query.port`, 
there should be similar configuration for backend/compute nodes.
   
   Then on the k8s side, backend/compute nodes can be exposed as ingress to 
solve this issue
   
   ### How to Reproduce?
   
   _No response_
   
   ### Anything Else?
   
   _No response_
   
   ### Are you willing to submit PR?
   
   - [ ] Yes I am willing to submit a PR!
   
   ### Code of Conduct
   
   - [x] I agree to follow this project's [Code of 
Conduct](https://www.apache.org/foundation/policies/conduct)
   


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