如題，在執行啓動agent相關進程的時候報瞭如下錯誤：
Error: Multilib version problems found. This often means that the root
cause is something else and multilib version checking is just
pointing out that there is a problem. Eg.:
1. You have an upgrade for libcom_err which is missing some
dependency that another package requires. Yum is trying to
solve this by installing an older version of libcom_err of the
different architecture. If you exclude the bad architecture
yum will tell you what the root cause is (which package
requires what). You can try redoing the upgrade with
--exclude libcom_err.otherarch ... this should give you an error
message showing the root cause of the problem.
2. You have multiple architectures of libcom_err installed, but
yum can only see an upgrade for one of those arcitectures.
If you don't want/need both architectures anymore then you
can remove the one with the missing update and everything
will work.
3. You have duplicate versions of libcom_err installed already.
You can use "yum check" to get yum show these errors.
...you can also use --setopt=protected_multilib=false to remove
this checking, however this is almost never the correct thing to
do as something else is very likely to go wrong (often causing
much more problems).
Protected multilib versions: libcom_err-1.41.12-24.el6.i686 != libcom_err-1.42.7.wc1-7.el6.x86_64
根據提示是版本衝突導致的，中間經歷多次解決方式，最後整理完，按如下解決：
- 1、卸載其中一個版本的libcom_err
rpm --erase --nodeps libcom_err-1.42.7.wc1-7.el6.x86_64
執行完後會發現yum無法使用了，重新安裝libcom_err即可。
- 2、下載所需libcom_err包並安裝
地址:http://mirror.centos.org/centos/6/os/x86_64/Packages/libcom_err-1.41.12-24.el6.x86_64.rpm
rpm -ivh libcom_err-1.41.12-24.el6.x86_64.rpm
- 3、重新執行agent的安裝即可
sudo yum install -y cloudera-manager-agent cloudera-manager-daemons