MirerRon opened a new issue, #12791:
URL: https://github.com/apache/iceberg/issues/12791

   ### Query engine
   
   Hi everyone! 
   I'm trying the apache/iceberg-rest-fixture image with the 
org.apache.iceberg.hadoop.HadoopFileIO implementation and JDBC catalog type. 
I've compiled the program with the required hadoop dependencies, and it seems 
to work on simple 1 namenode cluster. But as soon as I moved to an HA enabled 
cluster I get the following error:
   java.net.UnknownHostExcepption: Nameservice1
   
   I have added the CATALOG_HADOOP_CONF_DIR env variable, and made sure to put 
the hdfs-site.xml  and core-site.xml files in the directory. Though, it seems 
to be ignoring the hdfs-site.xml configuration, as that's where the nameservice 
and HA configurations are detailed. 
   Couldn't find anything concrete about only loading the core-site.xml file 
which could explain this issue. Did anyone encounter something similiar?
   
   ### Question
   
   Is there any possibility of the HadoopCatalogIO implementation only loading 
the core-site.xml config file and not the hdfs-site.xml config file?


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