why apache graceful restart take long time

[fandlr]

apache graceful restart take long time, anyone can help me?

[Thu Mar 10 20:07:41 2011] [notice] Graceful restart requested, doing restart
[Thu Mar 10 20:22:35 2011] [notice] suEXEC mechanism enabled (wrapper: /usr/local/apache/bin/suexec)
[Thu Mar 10 20:22:35 2011] [notice] mod_bw : Memory Allocated 0 bytes (each conf takes 36 bytes)
[Thu Mar 10 20:22:35 2011] [notice] mod_bw : Version 0.92 - Initialized [0 Confs]
[Thu Mar 10 20:22:35 2011] [notice] Apache/2.2.17 (Unix) mod_ssl/2.2.17 OpenSSL/0.9.8e-fips-rhel5 mod_bwlimited/1.4 configured -- resuming normal operations

 

[cPanelKenneth]

Graceful restarts are the "pretty please" of restarts. Apache child processes can block the restart, which can result in behavior you noted. Non-graceful restarts tell the children to "quiet down and go to bed OR ELSE" which results in Apache restarting in a timely manner.