hdfs is not always stopped during package deinstallation on centos

ps auwx | grep hdfs shows the secondary namenode still running after:

1. yum -y erase hadoop-0.20 hadoop-0.20-jobtracker hadoop-0.20-native hadoop-0.20-sbin hadoop-0.20-secondarynamenode hadoop-hive hadoop-lzo hue-hadoop-auth-plugin
   Loaded plugins: fastestmirror
   Setting up Remove Process
   Resolving Dependencies
   --> Running transaction check
   ---> Package hadoop-0.20.noarch 0:0.20.2+923.21-1 set to be erased
   --> Processing Dependency: hadoop-0.20 for package: hue
   --> Processing Dependency: hadoop-0.20 >= 0.20.2+887 for package: hue-cmon-plugin
   --> Processing Dependency: hadoop-0.20 >= 0.20.2+923.21 for package: hue-cloudera-libs
   --> Processing Dependency: hadoop-0.20 > 0.20.2+730 for package: hue-plugins
   ---> Package hadoop-0.20-jobtracker.noarch 0:0.20.2+923.21-1 set to be erased
   ---> Package hadoop-0.20-native.i386 0:0.20.2+923.21-1 set to be erased
   ---> Package hadoop-0.20-native.x86_64 0:0.20.2+923.21-1 set to be erased
   ---> Package hadoop-0.20-sbin.i386 0:0.20.2+923.21-1 set to be erased
   ---> Package hadoop-0.20-sbin.x86_64 0:0.20.2+923.21-1 set to be erased
   ---> Package hadoop-0.20-secondarynamenode.noarch 0:0.20.2+923.21-1 set to be erased
   ---> Package hadoop-hive.noarch 0:0.7.0+27.1-2 set to be erased
   --> Processing Dependency: hadoop-hive >= 0.7.0 for package: hue-beeswax
   ---> Package hadoop-lzo.x86_64 0:20101122174751.20101122171345.552b3f9-1 set to be erased
   ---> Package hue-hadoop-auth-plugin.noarch 0:3.5.2.7-1 set to be erased
   --> Running transaction check
   ---> Package hue.noarch 0:1.2.0.0+54-1 set to be erased
   ---> Package hue-beeswax.noarch 0:1.2.0.0+54-1 set to be erased
   ---> Package hue-cloudera-libs.x86_64 0:3.5.2.7-1 set to be erased
   --> Processing Dependency: hue-cloudera-libs >= 1.0 for package: hue-flume
   --> Processing Dependency: hue-cloudera-libs >= 1.2 for package: hue-cmon
   --> Processing Dependency: hue-cloudera-libs >= 1.0 for package: hue-flume
   --> Processing Dependency: hue-cloudera-libs >= 1.2 for package: hue-cmon
   ---> Package hue-cmon-plugin.noarch 0:3.5.2.7-1 set to be erased
   ---> Package hue-plugins.noarch 0:1.2.0.0+54-1 set to be erased
   --> Running transaction check
   ---> Package hue-cmon.noarch 0:3.5.2.7-1 set to be erased
   ---> Package hue-flume.noarch 0:3.5.2.7-1 set to be erased
   --> Finished Dependency Resolution

Dependencies Resolved

====================================================================================
Package Arch Version Repository Size
====================================================================================
Removing:
hadoop-0.20 noarch 0.20.2+923.21-1 installed 84 M
hadoop-0.20-jobtracker noarch 0.20.2+923.21-1 installed 6.8 k
hadoop-0.20-native i386 0.20.2+923.21-1 installed 56 k
hadoop-0.20-native x86_64 0.20.2+923.21-1 installed 71 k
hadoop-0.20-sbin i386 0.20.2+923.21-1 installed 53 k
hadoop-0.20-sbin x86_64 0.20.2+923.21-1 installed 62 k
hadoop-0.20-secondarynamenode noarch 0.20.2+923.21-1 installed 6.9 k
hadoop-hive noarch 0.7.0+27.1-2 installed 23 M
hadoop-lzo x86_64 20101122174751.20101122171345.552b3f9-1
installed 96 k
hue-hadoop-auth-plugin noarch 3.5.2.7-1 installed 450 k
Removing for dependencies:
hue noarch 1.2.0.0+54-1 installed 0.0
hue-beeswax noarch 1.2.0.0+54-1 installed 4.0 M
hue-cloudera-libs x86_64 3.5.2.7-1 installed 4.2 M
hue-cmon noarch 3.5.2.7-1 installed 25 M
hue-cmon-plugin noarch 3.5.2.7-1 installed 3.3 M
hue-flume noarch 3.5.2.7-1 installed 6.2 M
hue-plugins noarch 1.2.0.0+54-1 installed 1.6 M

Transaction Summary
====================================================================================
Remove 17 Package(s)
Reinstall 0 Package(s)
Downgrade 0 Package(s)

Downloading Packages:
Running rpm_check_debug
Running Transaction Test
Finished Transaction Test
Transaction Test Succeeded
Running Transaction
Erasing : hue-cmon-plugin 1/17
warning: /etc/cloudera/cmon-agent.ini saved as /etc/cloudera/cmon-agent.ini.rpmsave
Erasing : hadoop-0.20 2/17
warning: /etc/hadoop-0.20/conf.empty/mapred-site.xml saved as /etc/hadoop-0.20/conf.empty/mapred-site.xml.rpmsave
warning: /etc/hadoop-0.20/conf.empty/mapred-queue-acls.xml saved as /etc/hadoop-0.20/conf.empty/mapred-queue-acls.xml.rpmsave
warning: /etc/hadoop-0.20/conf.empty/hdfs-site.xml saved as /etc/hadoop-0.20/conf.empty/hdfs-site.xml.rpmsave
warning: /etc/hadoop-0.20/conf.empty/hadoop-env.sh saved as /etc/hadoop-0.20/conf.empty/hadoop-env.sh.rpmsave
warning: /etc/hadoop-0.20/conf.empty/core-site.xml saved as /etc/hadoop-0.20/conf.empty/core-site.xml.rpmsave
/etc/init.d/hadoop-0.20-secondarynamenode: line 23: /etc/default/hadoop-0.20: No such file or directory
/usr/lib/hadoop-0.20/bin/hadoop-daemon.sh: line 42: /usr/lib/hadoop-0.20/bin/hadoop-config.sh: No such file or directory
Erasing : hadoop-0.20-secondarynamenode 3/17
Erasing : hadoop-0.20-sbin 4/17
=== Uninstalling cmon
=== Saved registry at /usr/share/hue/app.reg
=== Saved /usr/share/hue/build/env/lib/python2.4/site-packages/hue.pth
Erasing : hue-cmon 5/17
=== Uninstalling cloudera-libs
cloudera-libs is not installed
Erasing : hue-cloudera-libs 6/17
Erasing : hue-plugins 7/17
Erasing : hue-hadoop-auth-plugin 8/17
Erasing : hue 9/17
/etc/init.d/hadoop-0.20-jobtracker: line 23: /etc/default/hadoop-0.20: No such file or directory
/usr/lib/hadoop-0.20/bin/hadoop-daemon.sh: line 42: /usr/lib/hadoop-0.20/bin/hadoop-config.sh: No such file or directory
Erasing : hadoop-0.20-jobtracker 10/17
=== Uninstalling beeswax
=== Saved registry at /usr/share/hue/app.reg
=== Saved /usr/share/hue/build/env/lib/python2.4/site-packages/hue.pth
Erasing : hue-beeswax 11/17
=== Uninstalling flume
=== Saved registry at /usr/share/hue/app.reg
=== Saved /usr/share/hue/build/env/lib/python2.4/site-packages/hue.pth
Erasing : hue-flume 12/17
Erasing : hadoop-0.20-native 13/17
Erasing : hadoop-hive 14/17
Erasing : hadoop-0.20-native 15/17
Erasing : hadoop-lzo 16/17
Erasing : hadoop-0.20-sbin 17/17

Removed:
hadoop-0.20.noarch 0:0.20.2+923.21-1
hadoop-0.20-jobtracker.noarch 0:0.20.2+923.21-1
hadoop-0.20-native.i386 0:0.20.2+923.21-1
hadoop-0.20-native.x86_64 0:0.20.2+923.21-1
hadoop-0.20-sbin.i386 0:0.20.2+923.21-1
hadoop-0.20-sbin.x86_64 0:0.20.2+923.21-1
hadoop-0.20-secondarynamenode.noarch 0:0.20.2+923.21-1
hadoop-hive.noarch 0:0.7.0+27.1-2
hadoop-lzo.x86_64 0:20101122174751.20101122171345.552b3f9-1
hue-hadoop-auth-plugin.noarch 0:3.5.2.7-1

Dependency Removed:
hue.noarch 0:1.2.0.0+54-1 hue-beeswax.noarch 0:1.2.0.0+54-1
hue-cloudera-libs.x86_64 0:3.5.2.7-1 hue-cmon.noarch 0:3.5.2.7-1
hue-cmon-plugin.noarch 0:3.5.2.7-1 hue-flume.noarch 0:3.5.2.7-1
hue-plugins.noarch 0:1.2.0.0+54-1

Complete!