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hdfs_missing_blocks

hdfs_missing_blocks

Storage | HDFS

This is an alert about the Hadoop Distributed File System (HDFS). The Netdata Agent monitors the number of missing blocks. This alert indicates that there are missing blocks on some DataNodes. This issue could be caused by a problem with the underlying storage or filesystem of a DataNode. To fix this issue, you can find what blocks are missing using hdfs fsck and bring the blocks back online. If the file can not be restored, you should delete the file.