Unusual High Memory Usage Is Observed In Oracle iPlanet Web Server 7.0 During Its Startup (Doc ID 1918330.1)

Last updated on SEPTEMBER 06, 2016

Applies to:

Oracle iPlanet Web Server - Version 7.0 and later
Information in this document applies to any platform.

Symptoms

The prstat command is run during the web server startup and this is what it shows:

1) Before the server is completely started:

wsts72@unixs737_DEV:/usr/iplanet/home/wsts2 $  prstat
  PID USERNAME  SIZE   RSS STATE  PRI NICE      TIME  CPU PROCESS/NLWP
 2124 wsts71    391133M cpu13    0    0   0:00:14 1.7% webservd/38

2) After the server is completely started:

Prstat ran during instance startup
wsts72@unixs737_DEV:/usr/iplanet/home/wsts2 $  prstat
  PID USERNAME  SIZE   RSS STATE  PRI NICE      TIME  CPU PROCESS/NLWP
 2124 wsts71   1240M 1034M sleep   59    0   0:00:28 2.6% webservd/109

Prstat ran after instance startup
wsts72@unixs737_DEV:/usr/iplanet/home/wsts2 $  prstat
  PID USERNAME  SIZE   RSS STATE  PRI NICE      TIME  CPU PROCESS/NLWP
 2124 wsts71   1240M 1034M sleep   59    0   0:00:28 0.2% webservd/109

As you can see, the process size has reached about 1.2G and this is much higher than 400M/500M normally seen in a freshly started 64bit web server.

Cause

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