线上Flink任务重启时，提交任务失败，具体报错如下：
-12-31 18:09:19java.lang.NumberFormatException: For input string: "30s"at java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)at java.lang.Long.parseLong(Long.java:589)at java.lang.Long.parseLong(Long.java:631)at org.apache.hadoop.conf.Configuration.getLong(Configuration.java:1441)at org.apache.hadoop.hdfs.client.impl.DfsClientConf.<init>(DfsClientConf.java:250)at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:303)at org.apache.hadoop.hdfs.DFSClient.<init>(DFSClient.java:287)at org.apache.hadoop.hdfs.DistributedFileSystem.initialize(DistributedFileSystem.java:159)at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:3242)at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:121)at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:3291)at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:3259)at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:470)at org.apache.hadoop.fs.Path.getFileSystem(Path.java:356)at org.apache.iceberg.hadoop.Util.getFs(Util.java:51)at org.apache.iceberg.hadoop.HadoopOutputFile.fromPath(HadoopOutputFile.java:53)at org.apache.iceberg.hadoop.HadoopFileIO.newOutputFile(HadoopFileIO.java:64)at org.apache.iceberg.io.OutputFileFactory.newOutputFile(OutputFileFactory.java:120)at org.apache.iceberg.io.BaseTaskWriter$BaseRollingWriter.openCurrent(BaseTaskWriter.java:264)at org.apache.iceberg.io.BaseTaskWriter$BaseRollingWriter.<init>(BaseTaskWriter.java:231)at org.apache.iceberg.io.BaseTaskWriter$BaseRollingWriter.<init>(BaseTaskWriter.java:221)at org.apache.iceberg.io.BaseTaskWriter$RollingFileWriter.<init>(BaseTaskWriter.java:303)at org.apache.iceberg.io.UnpartitionedWriter.<init>(UnpartitionedWriter.java:33)at org.apache.iceberg.flink.sink.RowDataTaskWriterFactory.create(RowDataTaskWriterFactory.java:89)at org.apache.iceberg.flink.sink.IcebergStreamWriter.open(IcebergStreamWriter.java:59)at org.apache.flink.streaming.runtime.tasks.OperatorChain.initializeStateAndOpenOperators(OperatorChain.java:433)at org.apache.flink.streaming.runtime.tasks.StreamTask.lambda$beforeInvoke$2(StreamTask.java:545)at org.apache.flink.streaming.runtime.tasks.StreamTaskActionExecutor$1.runThrowing(StreamTaskActionExecutor.java:50)at org.apache.flink.streaming.runtime.tasks.StreamTask.beforeInvoke(StreamTask.java:535)at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:575)at org.apache.flink.runtime.taskmanager.Task.doRun(Task.java:758)at org.apache.flink.runtime.taskmanager.Task.run(Task.java:573)at java.lang.Thread.run(Thread.java:748)
解决方案：
在hdfs-site.xml中新增配置后
<property><name>dfs.client.datanode-restart.timeout</name><value>30</value></property>
问题解决
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