Dramatic increase in swap utilization even though enough free memory is available in Red Hat Enterprise Linux 6.4
Issue
- Huge increase in swap usage even though enough free ram is available for any memory allocations.
- Swap is not used by any processes.
- Even after manually clearing swap using drop_caches, swap usage ramps up back.
Environment
- Red Hat Enterprise Linux 6.4
- Kernel-2.6.32-358.23.2.el6.x86_64
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