zhangwcoder opened a new issue #2404:
URL: https://github.com/apache/iceberg/issues/2404
### There are too many small files in my flink steam job to iceberg with
hive table , and most of them are empty .
I set the checkpoint interval to 3 seconds , this means empty files will
created every 3 seconds, even no data is writen.
`StreamExecutionEnvironment env =
StreamExecutionEnvironment.getExecutionEnvironment();
env.getConfig().setGlobalJobParameters(parameterTool);
env.getConfig().addDefaultKryoSerializer(com.google.protobuf.Message.class,
NonLazyProtobufSerializer.class);
[env.enableCheckpointing(3000);`]
### I learned that RewriteDataFilesAction action could solve this problem ,
But no files are merged after the action executed。
`ParameterTool parameterTool = ExecutionEnvUtil.createParameterTool(args);
IcebergManager manager = new IcebergManager(parameterTool);
TableLoader tableLoader = manager.tableLoad("demo", "test");
Table table = tableLoader.loadTable();
org.apache.iceberg.flink.actions.Actions.forTable(table).rewriteDataFiles()
.targetSizeInBytes(500 * 1024 * 1024).execute();`
How can i solve these two problems.
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