这个是装好就一直出现的，后来直接改了字体就解决了。
方法：
# 加入zabbix的front路径在：/opt/wwwroot/zabbix/ # 先备份原先的字体： cd /opt/wwwroot/zabbix/fonts/ cp -frp DejaVuSans.ttf DejaVuSans.ttf.old # 将新的字体复制过去，比较方便： cp /tmp/simhei.ttf DejaVuSans.ttf # 这样就OK了~
其他方法，如果有朋友愿意分享可以留言，谢谢~
mark
Eucalyptus can be installed on CentOS 5 from source or by using binary RPM packages. This document details the steps required to install Eucalyptus from RPMs. In what follows, the value of $VERSION must be set to the version of Eucalyptus you wish to install. For example, you can set the value to 2.0.2 using bash:
export VERSION=2.0.2
Notice: Before you begin, please ensure that you have an up-to-date CentOS installation on your target machine(s).
If you start with a standard CentOS installation, you will satisfy all prerequisites with the following steps:
yum install -y ntp ntpdate pool.ntp.org
yum install -y java-1.6.0-openjdk ant ant-nodeps dhcp bridge-utils perl-Convert-ASN1.noarch scsi-target-utils httpd
yum install -y xen sed --in-place 's/#(xend-http-server no)/(xend-http-server yes)/' /etc/xen/xend-config.sxp sed --in-place 's/#(xend-address localhost)/(xend-address localhost)/' /etc/xen/xend-config.sxp /etc/init.d/xend restart
Eucalyptus binary installation is broken up into several packages: one for each of the components (CLC, Walrus, CC, etc.), as well as a couple of common packages.
There are two options for downloading and installing the packages:
Packages are available from our yum repository. To use this option, create ‘/etc/yum.repos.d/euca.repo’ file with the following four lines:
[euca] name=Eucalyptus baseurl=http://www.eucalyptussoftware.com/downloads/repo/eucalyptus/$VERSION/yum/centos/ enabled=1
Now install Eucalyptus on the front-end:
yum install eucalyptus-cloud.$ARCH eucalyptus-cc.$ARCH eucalyptus-walrus.$ARCH eucalyptus-sc.$ARCH --nogpgcheck
and install Eucalyptus on the node:
yum install eucalyptus-nc.$ARCH --nogpgcheck
where $ARCH is the architecture of your host (either ‘i386′ or ‘x86_64′).
The packages are available in a single tarball, wherein we also include copies of third-party CentOS packages that Eucalyptus depends on (Rampart, Axis2C, many Java libraries), at http://open.eucalyptus.com/downloads (look for a CentOS tarball of the right Eucalyptus version and architecture).
Untar the bundle in a temporary location:
tar zxvf eucalyptus-$VERSION-*.tar.gz cd eucalyptus-$VERSION-*
In the examples below we use x86_64, which should be replaced with i386 or i586on 32-bit architectures.
First, on the front end, install third-party dependency RPMs:
cd eucalyptus-$VERSION*-rpm-deps-x86_64
rpm -Uvh aoetools-21-1.el4.x86_64.rpm \
euca-axis2c-1.6.0-1.x86_64.rpm \
euca-rampartc-1.3.0-1.x86_64.rpm \
vblade-14-1mdv2008.1.x86_64.rpm \
vtun-3.0.2-1.el5.rf.x86_64.rpm \
lzo2-2.02-3.el5.rf.x86_64.rpm\
perl-Crypt-OpenSSL-Random-0.04-1.el5.rf.x86_64.rpm\
perl-Crypt-OpenSSL-RSA-0.25-1.el5.rf.x86_64.rpm\
perl-Crypt-X509-0.32-1.el5.rf.noarch.rpm\
python25-2.5.1-bashton1.x86_64.rpm\
python25-devel-2.5.1-bashton1.x86_64.rpm\
python25-libs-2.5.1-bashton1.x86_64.rpm
cd ..
then install the -cloud, -walrus, -cc and -sc RPMs:
rpm -Uvh eucalyptus-$VERSION-*.x86_64.rpm \
eucalyptus-common-java-$VERSION-*.x86_64.rpm \
eucalyptus-cloud-$VERSION-*.x86_64.rpm \
eucalyptus-walrus-$VERSION-*.x86_64.rpm \
eucalyptus-sc-$VERSION-*.x86_64.rpm \
eucalyptus-cc-$VERSION-*.x86_64.rpm \
eucalyptus-gl-$VERSION-*.x86_64.rpm
Next, on each node install the dependency packages:
cd eucalyptus-$VERSION*-rpm-deps-x86_64
rpm -Uvh aoetools-21-1.el4.x86_64.rpm \
euca-axis2c-1.6.0-1.x86_64.rpm \
euca-rampartc-1.3.0-1.x86_64.rpm\
perl-Crypt-OpenSSL-Random-0.04-1.el5.rf.x86_64.rpm\
perl-Crypt-OpenSSL-RSA-0.25-1.el5.rf.x86_64.rpm\
perl-Crypt-X509-0.32-1.el5.rf.noarch.rpm\
python25-2.5.1-bashton1.x86_64.rpm\
python25-devel-2.5.1-bashton1.x86_64.rpm\
python25-libs-2.5.1-bashton1.x86_64.rpm
cd ..
then install the node controller RPM with dependencies:
rpm -Uvh eucalyptus-$VERSION-*.x86_64.rpm \
eucalyptus-gl-$VERSION-*.x86_64.rpm \
eucalyptus-nc-$VERSION-*.x86_64.rpm
The last step in the installation is to make sure that the user ‘eucalyptus’, which is created at RPM installation time, is configured to interact with the hypervisor through libvirt on all of your compute nodes. On each node, access the libvirtd configuration file at:
/etc/libvirt/libvirtd.conf
Confirm that the following lines are uncommented, as shown:
unix_sock_group = "libvirt" => unix_sock_group = "libvirt" unix_sock_ro_perms = "0777" => unix_sock_ro_perms = "0777" unix_sock_rw_perms = "0770" => unix_sock_rw_perms = "0770"
To check that libvirt is configured and interacting properly with the hypervisor, run the following command on each node:
su eucalyptus -c "virsh list"
The output of that command may include error messages (failed to connect to xend), but as long as it includes a listing of all domains (at least Domain-0), the configuration is in order.
Now start up your Eucalyptus services. On the front-end:
/etc/init.d/eucalyptus-cloud start /etc/init.d/eucalyptus-cc start
On the node:
/etc/init.d/eucalyptus-nc start
At this point you should be ready to proceed with first-time configuration.
原文：http://open.eucalyptus.com/wiki/EucalyptusInstallationCentos_v2.0
在Percona源码目录storage/HandlerSocket-Plugin-for-MySQL翻到目前有以下3个PHP扩展：
http://openpear.org/package/Net_HandlerSocket
http://github.com/tz-lom/HSPHP
http://code.google.com/p/php-handlersocket/
特地整理下。
