sunrpc.tcp_slot_table_entries is not persistent over reboot in sysctl in RHEL 4 and 5

Solution Verified - Updated -

Issue

  • NFS sunrpc module allows one to specify sunrpc.tcp_slot_table_entries parameter.

  • This parameter can be put in /etc/sysctl.conf.

  • Putting a value of say 64 and rebooting the machine causes the value of this parameter as observed by sysctl -a | grep sunrpc to show up as 16.

  • When setting it up manually with sysctl -w sunrpc.. it works fine but if put in sysctl.conf it doesn't.

Environment

  • Red Hat Enterprise Linux 4
  • Red Hat Enterprise Linux 5

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