I recreated an HBase service on one of my clusters and on start received a TableExistsException error: Error: org.apache.hadoop.hbase.master.TableNamespaceManager Namespace table not found. Creating… Jul […]
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HBase: RowCount Script
I wrote a quick script to count all rows in all tables in HBase. This works great for my Dev clusters that have ever-growing tables […]
Continue readingHBase All Regions in Transition: state=FAILED_OPEN
After I added a jar file to the HBase Master I had a problem where regions failed to transition to a RegionServer. Below are the errors; […]
Continue readingCloudera Manager HBase Check HFile Version
An under-documented feature in Cloudera Manager is the HBase Check HFile Version. When upgrading from CDH 4.7 to CDH 5.0, I ran across the instructions that […]
Continue readingCannot Start HBase Master: SplitLogManager: Error Splitting
I could not start HBase within Cloudera Manager, the service reported errors. I was initially confused because I could start the Master when the RegionServers […]
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