Heartbeat time interval for Datanode

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After how many seconds heartbeat signal is sent by data node and till how much time does Name Node wait before marking it a dead node?
Jun 20, 2019 in Big Data Hadoop by Karan
 • 1,184 views

1 answer to this question.

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The heartbeat interval is 3 seconds by default which is configured in property dfs.heartbeat.interval. If the namenode doesn't get any signal, it waits for 10 minutes and considers the datanode as dead.

answered Jun 20, 2019 by Rajat

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