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datanode无法启动Block pool ID needed, but service not yet registered with NN
内容描述服务器的datanode在启动时报Block pool ID needed, but service not yet registered with NN,报错内容:2020-08-29 20:40:26,224 WARN org.apache.hadoop.hdfs.server.datanode.DataNode: Block pool ID needed, but service not yet registered with NN, trace:java.lang.Exception原创 2020-09-11 09:46:33 · 5453 阅读 · 1 评论 -
HDFS报EOFException异常
现象大晚上的收到线上DataNode挂掉异常的报警,值班同学随即做了重启处理,重启完成后,进程虽然在运行,但是NameNode的WebUI上显示大量的block丢失。There are 12622047 missing blocks.Number of Under-Replicated Blocks 14436901重新启动的DataNode节点block数量为0,明显不正常HDFS在对丢失的block做恢复,missing blocks的数量在减少,但是丢失的的太多了,恢复速度很慢,这种情况肯定原创 2020-08-31 14:04:47 · 1827 阅读 · 0 评论