Database Reference
In-Depth Information
Variable
Description
$target_namenodeid
The NamenodeID of the namenode to be fenced
If a fencing method returns
0
, the fencing operation is considered successful. Though fen-
cing is not mandatory for HDFS HA using Quorum Journal Manager, it is highly recom-
mended. If no fencing is configured, a default value needs to be set for the property as
shown in the following code:
<property>
<name>dfs.ha.fencing.methods</name>
<value> shell(/bin/true)</value>
</property>
Once the configuration files are updated, copy the configurations to all the nodes in the
cluster.
