Memory Usage of dentry Exceeds the Threshold

The cluster OS is Red Hat 6.4, CentOS 6.4, or later versions. After the cluster is installed, the slabtop command is used to view the memory usage on the active NameNode and active ResourceManager. It is found that the dentry memory usage keeps increasing and "ALM-12018 Memory Usage Exceeds the Threshold" is finally reported.
Possible Causes:The version of the nbss-util and nss-softokn RPM packages in the OS is too early and related environment variables are not imported.Contact the OS vendor to upgrade the nbss-util and nss-softokn RPM packaged to a specified version or later and import environment variables as user omm.

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