Oracle Virtualization and Cloud Consulting
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Linux Support, Oracle Linux, Red Hat Enterprise Linux, SUSE, Oracle Unbreakable Enterprise Kernel and the Oracle Unbreakable Linux Support Program (ULN) resources, news, and support articles.

Slides from my talk: “The Mission Critical Cloud” at the Amsterdam CloudStack meetup

Here are the slides from my presentation at the CloudStack meetup today in Amsterdam. Get the code on Github.Filed under: CloudStack Tagged: automation, cloudstack, talk

Linghttpd – unknown config-key: accesslog.filename

Recently I faced wearied scenario where I am unable to view access logs of lighttpd.
Even though after adding accesslog.filename = “/var/log/lighttpd/access.log” line in lighttpd.conf file logs are not getting updated in lighttpd.conf file
After debugging for a while I seen following error in /var/log/lighttpd/error.log:
WARNING: unknown config-key: accesslog.filename (ignored)
To fix this issue I adding “mod_accesslog” to servers.modules in lighttpd.conf file & restarted lighttpd. After that issue got resolved.

HBase error there is a hole in the region chain

Recently while I am trying to restart HBase I got error message saying that “ERROR: There is a hole in the region chain between …… You need to create a new .regioninfo and region dir in hdfs to plug the hole”.
Following is the error message:

node-oracledb 0.6.0 is on NPM (Node.js driver for Oracle Database)

Node-oracledb 0.6.0 is now out on href="https://www.npmjs.com/package/oracledb" >NPM. The Oracle
Database Node.js driver powers high performance Node.js
applications.

There is one feature change in this release: node-oracledb now
builds with Node.js 0.10, 0.12 and with io.js. Huge thanks to href="https://github.com/Bigous" >Richard Natal for his href="https://github.com/oracle/node-oracledb/pull/43" >GitHub pull
request that added support.

Useful sed tricks to customize configuration files

A typical software installation goes like this. You install the software using apt-get install or yum install.

Accepting pull requests: the easy way

Recently I became a committer in the Apache CloudStack project. Last week when I was working with Rohit Yadav from ShapeBlue he showed me how he had automated the process with a Git alias. I really like it so I’ll share it here as well. First of all, pull requests are created on Github.com. Rohit created […]

Making XenServer and CloudStack sing and dance together (again)

XenServer and Apache CloudStack work nicely together and form an easy-to-go couple for many companies. However, not many people know that recent releases changed the cooperation between the two drastically. I’m not only talking about the shiny new Apache CloudStack 4.5 release, but the change was back ported to recent releases of 4.3.x and 4.4.x […]

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