Tech Notes

Your project can be on or off. Your project's priority can be changed. Your job can be changed. But the technology is always heading north!

Monday, July 21, 2014

Assigning a static IP to a VMware Workstation VM

http://bytealmanac.wordpress.com/2012/07/02/assigning-a-static-ip-to-a-vmware-workstation-vm/ Assumption : the VM is running a DHCP clien...

Thursday, July 17, 2014

Cloudera CDH5 source code download

https://repository.cloudera.com/artifactory/public/org/apache/hadoop/hadoop-core/

Wednesday, July 2, 2014

zookeeper-env.sh issue when setting up HBase

Followed CDH4.2.2 installation guide to setup HBase. Ran "service zookeeper-server start" No error from command line. But zoo...

Wednesday, June 25, 2014

Eclipse debug step into, step over, etc. disappeared. How to bring them back?

http://stackoverflow.com/questions/12912896/eclipse-buttons-like-step-in-step-out-resume-etc-not-working

Monday, June 9, 2014

Write RC file

private static void testWrite() throws IOException { Configuration conf = new Configuration(); conf.addResource(new Path("C:\\etc\\...

Friday, May 30, 2014

Eclipse: search files outside workspace

I used to use Visual Studio and IntelliJ IDEA for coding. When switching to use Eclipse, i found the search is very workspace oriented. I...

Friday, May 23, 2014

Row wise read vs column wise read for RCFile

Row Wise Read: private static void readRowWise(RCFile.Reader rcReader) { int rowcounter = 0; Text len = rcReader.getMetadata().get(new...

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