wangyang0918 commented on issue #8303: [FLINK-12343] [flink-yarn] add file replication config for yarn configuration URL: https://github.com/apache/flink/pull/8303#issuecomment-510381735 Hi @HuangZhenQiu After investigation, i got the following conclusions. 1. The the default value of `dfs.replication` is 1 just because MiniDFSCluster only start 1 datanode. So the replication in configuration is updated to 1 by MiniDFSCluster. 2. The settings of dfs.replication is not used by MiniYarnCluster and flink application. Because you write the hdfs configuration to `core-site.xml`, it should be `hdfs-site.xml`. And also `hdfs-site.xml` should be added to local resource just like `yarn-site.xml` so that all containers(jm/tm) could access it. What do you think?
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