diff -up yum-3.4.3/cli.py.orig yum-3.4.3/cli.py

--- yum-3.4.3/cli.py.orig	2017-10-20 18:27:45.114593690 +0200

+++ yum-3.4.3/cli.py	2017-10-20 18:27:48.367578901 +0200

@@ -2275,8 +2275,10 @@ class YumOptionParser(OptionParser):

             self.base.updateinfo_filters['cves'] = self._splitArg(opts.cves)

             self.base.updateinfo_filters['sevs'] = self._splitArg(opts.sevs)

+            if not self.base.conf.usercache and os.geteuid() != 0:

+                self.base.conf.cache = 1

             #  Treat users like root as much as possible:

-            if not self.base.setCacheDir():

+            elif not self.base.setCacheDir():

                 self.base.conf.cache = 1

             if opts.cacheonly:

                 self.base.conf.cache = 1

diff -up yum-3.4.3/docs/yum.8.orig yum-3.4.3/docs/yum.8

--- yum-3.4.3/docs/yum.8.orig	2017-10-20 18:27:45.135593595 +0200

+++ yum-3.4.3/docs/yum.8	2017-10-20 18:27:48.368578897 +0200

@@ -835,8 +835,12 @@ Configuration Option: \fBrpmverbosity\fP

 .IP "\fB\-R, \-\-randomwait=[time in minutes]\fP" 

 Sets the maximum amount of time yum will wait before performing a command \- it randomizes over the time.

 .IP "\fB\-C, \-\-cacheonly\fP" 

-Tells yum to run entirely from system cache - does not download or

-update any headers unless it has to to perform the requested action.

+Tells yum to run entirely from system cache; does not download or update

+metadata.

+When this is used by a non\-root user, yum will run entirely from user cache in

+$TMPDIR.

+This option doesn't stop yum from updating user cache from system cache locally

+if the latter is newer (this is always done when running as a user).

 .IP "\fB\-\-version\fP" 

 Reports the \fByum\fP version number and installed package versions for

 everything in history_record_packages (can be added to by plugins).

diff -up yum-3.4.3/docs/yum.conf.5.orig yum-3.4.3/docs/yum.conf.5

--- yum-3.4.3/docs/yum.conf.5.orig	2017-10-20 18:27:45.137593585 +0200

+++ yum-3.4.3/docs/yum.conf.5	2017-10-20 18:27:48.368578897 +0200

@@ -40,6 +40,19 @@ of headers and packages after successful

 .br

 .IP

+\fBusercache\fR

+Either `1' or `0'. Determines whether or not yum should store per-user cache in

+$TMPDIR.

+When set to `0', then whenever yum runs as a non\-root user,

+\fB\-\-cacheonly\fR is implied and system cache is used directly, and no new

+user cache is created in $TMPDIR.

+This can be used to prevent $TMPDIR from filling up if many users on the system

+often use yum and root tends to have up-to-date metadata that the users can

+rely on (they can still enable this feature with \fB\-\-setopt\fR if they

+wish).

+Default is `1' (user cache enabled).

+

+.IP

 \fBreposdir\fR

 A list of directories where yum should look for .repo files which define

 repositories to use. Default is `/etc/yum.repos.d'. Each

diff -up yum-3.4.3/yum/config.py.orig yum-3.4.3/yum/config.py

--- yum-3.4.3/yum/config.py.orig	2017-10-20 18:27:45.136593590 +0200

+++ yum-3.4.3/yum/config.py	2017-10-20 18:27:48.369578892 +0200

@@ -742,6 +742,7 @@ class YumConf(StartupConf):

     cachedir = Option('/var/cache/yum')

     keepcache = BoolOption(True)

+    usercache = BoolOption(True)

     logfile = Option('/var/log/yum.log')

     reposdir = ListOption(['/etc/yum/repos.d', '/etc/yum.repos.d'])

diff -up yum-3.4.3/yummain.py.orig yum-3.4.3/yummain.py

--- yum-3.4.3/yummain.py.orig	2017-10-20 18:27:45.062593926 +0200

+++ yum-3.4.3/yummain.py	2017-10-20 18:27:48.369578892 +0200

@@ -71,7 +71,12 @@ def main(args):

     def exRepoError(e):

         # For RepoErrors ... help out by forcing new repodata next time.

         # XXX: clean only the repo that has failed?

-        base.cleanExpireCache()

+        try:

+            base.cleanExpireCache()

+        except Errors.YumBaseError:

+            # Let's not confuse the user further (they don't even know we tried

+            # the clean).

+            pass

         msg = _("""\

  One of the configured repositories failed (%(repo)s),