You may want to restart a node if you notice strange behavior in a node (for example excessive CPU consumption) and want to check whether a restart cures the problem.
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| Caution | Do not stop a node if its mirror node is not running, because this may force the database into a Non Operational state. For details about node status, see "Getting the Status of the HADB". | 
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To restart a node in the database, use the hadbm restartnode command. The syntax is as follows:
hadbm restartnode [--startlevel=level] nodeno [dbname]
 For example:
hadbm restartnode 1
 
The hadbm restartnode command options are listed in the following table.