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hdfs_stale_nodes

hdfs_stale_nodes

Storage | HDFS

This is an alert about the Hadoop Distributed File System (HDFS). The Netdata Agent monitors the Number of stale DataNodes. This alert indicates that there are stale DataNodes due to delayed heartbeat or did not respond to heartbeats at all. The stale DataNodes are given the lowest priority for reads and writes. If the datanode is not back online for a while, it will be considered dead.