openSLP causes spikes of 80% utilization every 15 seconds

This document (7005907) is provided subject to the disclaimer at the end of this document.

Environment


OpenSLP

Situation

rcslpd start
At the console run "top" and see that it reports the Daemon "slpd" is using near 80% of the CPU.

If you remove all of the .reg files in the /etc/slp.reg.d directory and restart the slpd daemon the utilization spikes do not happen.

Duplication Steps:
rcslpd start
Run top - It reports the Daemon "slpd" is using 79% of the CPU.
rcslpd stop
Remove all of the .reg files in the /etc/slp.reg.d directory
rcslpd start
See the utilization spike is no longer there and SLP is running and functioning properly.

Resolution

Reported to engineering.
An FTF have been successfully tested.
The fix should be release soon in the update channel.

Additional Information

An strace taken during the utilization spikes shows that it is caused by the reading of the /proc/net/tcp file.
The use of /proc/net/tcp is deprecated and has been replaced with INETDIAG/TCPDIAG.

Disclaimer

This Support Knowledgebase provides a valuable tool for SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.

  • Document ID:7005907
  • Creation Date: 05-May-2010
  • Modified Date:03-Mar-2020
    • SUSE Linux Enterprise Server

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