我正尝试在CentOS 7上安装Varnish 4。
我第一次添加这些rpm：
sudo rpm -ivh http://dl.fedoraproject.org/pub/epel/6/x86_64/jemalloc-3.6.0-1.el6.x86_64.rpm sudo rpm -iUvh http://195.220.108.108/linux/centos/7.0.1406/extras/x86_64/Packages/epel-release-7-2.noarch.rpm yum install varnish 但是我得到这个：
Loaded plugins: fastestmirror, langpacks Loading mirror speeds from cached hostfile * base: mirror.team-cymru.org * epel: mirror.steadfast.net * extras: mirror.team-cymru.org * updates: mirror.team-cymru.org Resolving Dependencies --> Running transaction check ---> Package varnish.x86_64 0:4.0.2-1.el6 will be installed --> Processing Dependency: varnish-libs = 4.0.2-1.el6 for package: varnish-4.0.2-1.el6.x86_64 --> Processing Dependency: libvarnishapi.so.1(LIBVARNISHAPI_1.3)(64bit) for package: varnish-4.0.2-1.el6.x86_64 --> Processing Dependency: libvarnishapi.so.1(LIBVARNISHAPI_1.2)(64bit) for package: varnish-4.0.2-1.el6.x86_64 --> Processing Dependency: libvarnishapi.so.1(LIBVARNISHAPI_1.0)(64bit) for package: varnish-4.0.2-1.el6.x86_64 --> Processing Dependency: libvarnishapi.so.1(LIBVARNISHAPI_1.1)(64bit) for package: varnish-4.0.2-1.el6.x86_64 --> Processing Dependency: libvarnishapi.so.1()(64bit) for package: varnish-4.0.2-1.el6.x86_64 --> Processing Dependency: libpcre.so.0()(64bit) for package: varnish-4.0.2-1.el6.x86_64 --> Processing Dependency: libvcc.so()(64bit) for package: varnish-4.0.2-1.el6.x86_64 --> Processing Dependency: libvarnishcompat.so()(64bit) for package: varnish-4.0.2-1.el6.x86_64 --> Processing Dependency: libvarnish.so()(64bit) for package: varnish-4.0.2-1.el6.x86_64 --> Processing Dependency: libvgz.so()(64bit) for package: varnish-4.0.2-1.el6.x86_64 --> Running transaction check ---> Package varnish.x86_64 0:4.0.2-1.el6 will be installed --> Processing Dependency: libpcre.so.0()(64bit) for package: varnish-4.0.2-1.el6.x86_64 ---> Package varnish-libs.x86_64 0:4.0.2-1.el6 will be installed --> Processing Dependency: libpcre.so.0()(64bit) for package: varnish-libs-4.0.2-1.el6.x86_64 --> Finished Dependency Resolution Error: Package: varnish-libs-4.0.2-1.el6.x86_64 (varnish-4.0) Requires: libpcre.so.0()(64bit) Available: varnish-4.0.0-0.20131129tp1.el6.x86_64 (varnish-4.0) libpcre.so.0()(64bit) Available: varnish-4.0.0-0.20140328beta1.el6.x86_64 (varnish-4.0) libpcre.so.0()(64bit) Available: varnish-4.0.0-1.el6.x86_64 (varnish-4.0) libpcre.so.0()(64bit) Available: varnish-libs-4.0.0-0.20131129tp1.el6.x86_64 (varnish-4.0) libpcre.so.0()(64bit) Available: varnish-libs-4.0.0-0.20140328beta1.el6.x86_64 (varnish-4.0) libpcre.so.0()(64bit) Available: varnish-libs-4.0.0-1.el6.x86_64 (varnish-4.0) libpcre.so.0()(64bit) Available: varnish-4.0.1-1.el6.x86_64 (varnish-4.0) Not found Available: varnish-4.0.1-2.el7.x86_64 (epel) Not found Installing: varnish-4.0.2-1.el6.x86_64 (varnish-4.0) Not found Available: varnish-libs-4.0.1-1.el6.x86_64 (varnish-4.0) Not found Available: varnish-libs-4.0.1-2.el7.x86_64 (epel) Not found Installing: varnish-libs-4.0.2-1.el6.x86_64 (varnish-4.0) Not found Error: Package: varnish-4.0.2-1.el6.x86_64 (varnish-4.0) Requires: libpcre.so.0()(64bit) Available: varnish-4.0.0-0.20131129tp1.el6.x86_64 (varnish-4.0) libpcre.so.0()(64bit) Available: varnish-4.0.0-0.20140328beta1.el6.x86_64 (varnish-4.0) libpcre.so.0()(64bit) Available: varnish-4.0.0-1.el6.x86_64 (varnish-4.0) libpcre.so.0()(64bit) Available: varnish-libs-4.0.0-0.20131129tp1.el6.x86_64 (varnish-4.0) libpcre.so.0()(64bit) Available: varnish-libs-4.0.0-0.20140328beta1.el6.x86_64 (varnish-4.0) libpcre.so.0()(64bit) Available: varnish-libs-4.0.0-1.el6.x86_64 (varnish-4.0) libpcre.so.0()(64bit) Available: varnish-4.0.1-1.el6.x86_64 (varnish-4.0) Not found Available: varnish-4.0.1-2.el7.x86_64 (epel) Not found Installing: varnish-4.0.2-1.el6.x86_64 (varnish-4.0) Not found Available: varnish-libs-4.0.1-1.el6.x86_64 (varnish-4.0) Not found Available: varnish-libs-4.0.1-2.el7.x86_64 (epel) Not found Installing: varnish-libs-4.0.2-1.el6.x86_64 (varnish-4.0) Not found You could try using --skip-broken to work around the problem You could try running: rpm -Va --nofiles --nodigest
我不知道你在跟随谁的指示，但是指示是错误的，或者他们是错误的指示。
在干净的CentOS 7系统上，您可以简单地安装Varnish 4：
yum install epel-release yum install varnish
由于您的系统不再清洁，您必须先清理它。 尤其是：
你从EL6安装了jemalloc包。 您需要将其replace为EL7。 由于您已经安装了EPEL回购，所以应该足够：
yum update jemalloc
否则，只需删除并重新安装它。
rpm --nodeps -e jemalloc yum install jemalloc
你从某处（可能是Varnish社区 ）安装了一个名为varnish-4.0的仓库，但是你没有提到这个。 （a）仅用于EL6，（b）EPEL已经装运了清漆4。
rpm --nodeps -e $(rpm -qf /etc/yum.repos.d/varnish*.repo)
最后你的系统应该是干净的，你可以安装清漆。
yum install varnish
最后一点：由于EPEL的企业质量保证要求， EPEL Varnish将在上游的Varnish点发布。 如果跟踪点发布对您很重要，您可能希望参与EPEL中该软件包的质量检查stream程 。 这通常涉及build立或安装一个testing包，然后根据其是否正常工作进行投票 。 （例如，在撰写本文时，Varnish 4.0.2是最新的上游，并且在EPEL中还需要3个升级才能升级到稳定。）