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HTTP Server Is Either Slow Or Stops Responding When Installed On A NFS Mounted Drive (Doc ID 560853.1)

Last updated on AUGUST 20, 2021

Applies to:

Oracle HTTP Server - Version 10.1.2.0.2 to 10.1.2.3 [Release AS10gR2]
Information in this document applies to any platform.

Symptoms

If HTTP Server is delivering pages slowly:

If HTTP Server is not responding:

  • The $ORACLE_HOME/Apache/Apache/logs/access_log shows that requests stop just before it cannot be pinged.
  • This occurs randomly with hardly anyone using the system
  • When it stops responding, the number of httpd processes is well below the MaxClients value set in $ORACLE_HOME/Apache/Apache/conf/httpd.conf
  • The "top" command shows no httpd processes consuming large amounts of CPU before the crash.
  • "netstat" output looks normal
  • The same problem occurs if HTTP Server is started outside of OPMN i.e $ORACLE_HOME/Apache/Apache/bin/.apachectl start
  •  A small load test accessing index.html, shows that HTTP Server stops accepting requests after a short period of time.
  • At the point it stops accessing requests, netstat shows that the Listen port is still available, and its still possible to telnet to the Listen port. However a GET request from the telnet session, and a request from a browser just hang.
  • A "ps -edf | grep httpd" shows that httpd processes still exist, but are nowhere near MaxClients.
  • This proves the issue in with HTTP Server itself.

Cause

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In this Document
Symptoms
Cause
Solution
References

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