2015年9月11日 星期五

Openstack nova Instance failed to push static IP through config drive. openstack/content/0000 is missing

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So I need to bootstrap an instance that is configured as static IP through config drive, instead of the generic DHCP.  So with nova boot, ev...
2015年9月10日 星期四

Openstack broken metadata interfaces template

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Was my 2nd time hitting the same issue and it wasted my whole day so I think I should document this as a note just in case it happens again....
2015年9月2日 星期三

Cloudera Manager agent failed to connect to previous supervisor

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Continue to another article written earlier, I am hitting another road block while installing Cloudera manager agent. [ 10 /Sep/ 2015 0...
2015年9月1日 星期二

Cloudera manager agent installation fail due to missing of ntp package

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So was trying to explore Cloudera Hadoop by following  this installation guide  and run into issue in bringing up cloudera manager agent (cl...
2013年7月30日 星期二

Passed EX436 Clustering and Storage Management last sunday.

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For sake of self achievement, I planned to get RHCA for some time since 2011 and hopefully this could be done before end of 2013, if everyth...
2013年7月24日 星期三

A quick and dirty munin plugins to count number of VM running on RHEL/CentOS based KVM host.

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So recently I was configuring munin to monitor some QEMU/KVM hosts which based on generic RHEL servers (Noted, not RHEV) which run libvirtd ...
2013年7月22日 星期一

Resource [Host:N] is unreachable: Host N: Unable to start instance due to Template systemvm-kvm-3.0.0 has not been completely downloaded to zone N

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So,  because of my job duty and I have to deal with Citrix Cloudstack day by day. Recently we are deploying a new advanced zone and for some...