Hadoop: Safemode recovery is taking too long

1143070 pts.
Tags:
Big Data
Hadoop
We have a Hadoop cluster with 18 data nodes. We recently restarted the name node about three hours ago and it's still in safe mode! We're not sure if we should try to restart it. We looked online and found this to try:
 dfs.namenode.handler.count
 3
 true
Should we try this? If not, has anyone seen this and what should we do?
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