Install php-pecl-memcached

Question

I'm trying to install php-pecl-memcached in php v5.4.45 and Centos v6.5.

My command is following.

yum --enablerepo=remi install php-pecl-memcached

However I encountered the following error.

Transaction Check Error:
  file /usr/lib64/libhashkit.so.2.0.0 conflicts between attempted installs of libmemcached-last-libs-1.0.18-2.el6.remi.x86_64 and libmemcached10-1.0.16-1.ius.el6.x86_64
  file /usr/lib64/libmemcached.so.11.0.0 conflicts between attempted installs of libmemcached-last-libs-1.0.18-2.el6.remi.x86_64 and libmemcached10-1.0.16-1.ius.el6.x86_64
  file /usr/lib64/libmemcachedutil.so.2.0.0 conflicts between attempted installs of libmemcached-last-libs-1.0.18-2.el6.remi.x86_64 and libmemcached10-1.0.16-1.ius.el6.x86_64

I tried remove libmemcached10 by the following command.

yum remove libmemcached10

However, It doesn't work. The error detaile is following.

Loaded plugins: fastestmirror, security
Setting up Remove Process
No Match for argument: libmemcached10
Loading mirror speeds from cached hostfile
 * base: ftp.iij.ad.jp
 * epel: mirrors.hustunique.com
 * extras: ftp.iij.ad.jp
 * ius: archive.linux.duke.edu
 * updates: ftp.iij.ad.jp
Package(s) libmemcached10 available, but not installed.
No Packages marked for removal

Could you tell me how to solve this problem?

Answer 1

Don't mix IUS and Remi. Many of the packages provide the same files, as your error output indicates. These repos also have different views on conflicts, provides, and package naming; these differences result in the packages not working well together. It isn't entirely clear what the exact problem is, but I can virtually guarantee it is related to trying to use both repos. Pick which repository you want to use, and completely disable and remove the other one.

IUS currently offers php55u-pecl-memcached and php56u-pecl-memcached, which use alternate names to avoid accidentally overwriting stock packages.

PHP 5.4 is EOL. If you absolutely have to keep using 5.4, switch to CentOS 7, which uses that version, but will continue to get security backports for the lifetime of the OS.

Here are some helpful commands you might need.

rpm -qa | grep remi

What Remi packages are installed?

rpm -qa | grep ius

What IUS packages are installed?

rpm -qf /usr/lib64/libhashkit.so.2.0.0

What package owns the file from the error?

yum repolist

What repos do I have enabled?