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OpenTSDB and Google Cloud Bigtable

Data comes in different shapes. One of the these shapes is called a time series. Time series is basically a sequence of data points recorded over time. If, for example, you measure the height of the tide every hour for 24 hours, then you will end up with a time series of 24 data points….

OEM 12c Silent Installation

“What’s for lunch today?”, said the newly born ready to run Red Hat 6.4 server. “Well, I have an outstanding 3-course meal of OEM12c installation. For the appetizer, a light and crispy ASM 12c, DB 12c with patching for the main and desert, and to cover everything up, OEM 12c setup and configuration”, replied  the DBA who…

Thanks Oracle for R12.AD.C.DELTA.6

When reading through the release notes of the latest Oracle E-Business Suite R12.2 AD.C.Delta.6 patch in note 1983782.1, I wondered what they meant by “Simplification and enhancement of adop console messages”. I realized what I was missing after I applied the AD.C.Delta6 patch. The format of the console messaged changed drastically. To be honest, the…

Weblogic patch rollback issues in Oracle EBS R12.2

When you try to rollback a weblogic patch in Oracle EBS R12.2, you might run into issues similar to below: $ ./bsu.sh -remove -patchlist=YIJF -prod_dir=/u01/install/VISION/fs2/FMW_Home/wlserver_10.3 -verbose Checking for conflicts.. No conflict(s) detected Starting removal of Patch ID: YIJF Restoring /d1/V1223B5B/fs1/FMW_Home/modules/com.bea.core.datasource6.binding_1.10.0.0.jar from /u01/install/VISION/fs2/FMW_Home/patch_wls1036/backup/backup.jar Result: Failure Failure condition follows: An error occured while removing patches – run…

Pillars of PowerShell: Profiling

Introduction This is the fourth blog post continuing the series on the Pillars of PowerShell. The previous post in the series are: Interacting Commanding Debugging Profiles This is something I mentioned in the second post and can be a great way to keep up with those one-liners you use most often in your work. A profile…

Keeping Cassandra Alive

Troubleshooting Cassandra under pressure This is the second blog post in the series. This is a bit more technical than the first one. I will explain some things that can be made to keep a cluster/server running when you are having problems in that cluster. There were a lot of changes in Cassandra over the…

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