[CentOS] yum doesn't exit

Tue Aug 3 10:36:51 UTC 2010
ken <gebser at mousecar.com>

Running "yum update", yum appears to perform fine and appears to finish
but continues to reside in memory:

...
  Updating       : lftp                                      2/4
  Cleanup        : lftp                                      3/4
  Cleanup        : freetype                                  4/4

Updated:
  freetype.i386 0:2.2.1-25.el5_5          lftp.i386 0:3.7.11-4.el5_5.3


Complete!
# ps -ef|grep yum
root      1384  1336  0 06:21 pts/0    00:00:00 grep yum
root      2229     1  0 Jul06 ?        00:00:11 /usr/bin/python -tt
/usr/sbin/yum-updatesd
....

Running the above "ps -ef|grep yum" again after composing this email,
process 2229 is still running (several minutes later).  And this machine
isn't particularly busy:

# vmstat
procs -----------memory---------- ---swap-- -----io---- --system--
-----cpu------
 r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy
id wa st
 0  0     64  42268  73752 139556    0    0     0     2    8    4  1  0
99  0  0


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