HuangZhenQiu commented on code in PR #13259:
URL: https://github.com/apache/hudi/pull/13259#discussion_r2638570978


##########
hudi-client/hudi-flink-client/src/main/java/org/apache/hudi/util/FlinkClientUtil.java:
##########
@@ -23,18 +23,27 @@
 import org.apache.hudi.common.table.HoodieTableConfig;
 import org.apache.hudi.common.table.HoodieTableMetaClient;
 import org.apache.hudi.config.HoodieWriteConfig;
+import org.apache.hudi.common.util.StringUtils;
 import org.apache.hudi.hadoop.fs.HadoopFSUtils;
 
 import org.apache.flink.api.java.hadoop.mapred.utils.HadoopUtils;
 import org.apache.flink.configuration.Configuration;
+import org.apache.flink.configuration.ConfigurationUtils;
+import org.apache.flink.configuration.GlobalConfiguration;
 import org.apache.hadoop.fs.Path;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 import java.io.File;
+import java.util.Map;
 
 /**
  * Utilities for Hoodie Flink client.
  */
 public class FlinkClientUtil {
+  private static final Logger LOG = 
LoggerFactory.getLogger(FlinkClientUtil.class);
+  public static String FLINK_HADOOP_CONFIG_PREFIX = "flink.hadoop";

Review Comment:
   Yes, it is the default prefix for flink application to pass customized 
application level Hadoop config.
   
   
https://nightlies.apache.org/flink/flink-docs-master/docs/deployment/config/#flink-hadoop-%3Ckey%3E



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