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我有 2 个 NameNode,13 个 DataNode。现在 5 个 DataNode 已死,NameNode 安全模式已开启。

当我在我的 NameNode 上启动 start-dfs.sh 时,它不会启动 5 个死的 DataNode。

数据节点日志:

2022-01-25 08:38:01,044 INFO org.apache.hadoop.hdfs.server.common.Storage: Lock on /data01/dfs/dn/in_use.lock acquired by nodename 1234@hadoop
2022-01-25 08:38:01,127 INFO org.apache.hadoop.hdfs.server.common.Storage: Locking is disabled
2022-01-25 08:38:01,130 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: Setting up storage: nsid=649647646;bpid=BP-1693026203-NameNodeIP-1413281227841;lv=-40;nsInfo=lv=-40;cid=CID-a343ba30;nsid=649647646;c=0;bpid=BP-1693026203-NameNodeIP-1413281227841
2022-01-25 08:38:01,152 INFO org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetImpl: Added volume - /data01/dfs/dn/current
2022-01-25 08:38:01,161 INFO org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetImpl: Registered FSDatasetState MBean
2022-01-25 08:38:01,171 INFO org.apache.hadoop.hdfs.server.datanode.DirectoryScanner: Periodic Directory Tree Verification scan starting at 1643074888170 with interval 21600000
2022-01-25 08:38:01,172 INFO org.apache.hadoop.hdfs.server.datanode.fsdataset.impl.FsDatasetImpl: Adding block pool BP-1693026203-NameNodeIP-1413281227841

添加块池工作并没有结束。为什么没有结束,我怎样才能恢复死的 DataNodes?

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