Setting HeartBeat Interval for Datanode

Setting up the following in your hdfs-site.xml will give you 1-minute timeout.

<property>

 <name>heartbeat.recheck.interval</name>

 <value>15</value>

 <description>Determines datanode heartbeat interval in seconds</description>

</property>

If above doesn't work - try the following (seems to be version-dependent):

<property>

 <name>dfs.heartbeat.recheck.interval</name>

 <value>15</value>

 <description>Determines datanode heartbeat interval in seconds.</description>

</property>

Timeout equals to 2 * heartbeat.recheck.interval + 10 * heartbeat.interval. Default forheartbeat.interval is 3 seconds.