I found this fantastic page for comparing Azure VM prices: Azure VM Comparison
Continue readingHBase: ReplicationLogCleaner: Failed to get stat of replication rs node
The oldWALs folder in HBase has been growing for the past few days – the folder is 1 TB and growing – the oldWALs are […]
Continue readingHBase: Unable to start Master: TableExistsException: hbase:namespace
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 […]
Continue readingList DPM Backups
I was asked to create a list of what we are backing up with DPM, including the schedule and frequency. I looked around and came […]
Continue readingPowerShell Script to Query VMM
Query List of VMs The following PowerShell script will query VMM for a list of VMs. Use this as a start. Query List of VMs […]
Continue readingHBase: 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 readingUse PowerShell to Retrieve a List of Servers from VMM
Useful script to go after servers in VMM and output the list to a csv file.
Continue readingSearch for string and append string to file
A very useful string search and append that I find myself rewriting over and over. So I’ve decided to write a post and capture the […]
Continue readingHDFS JournalNode: JournalNotFormattedException: Journal Storage Directory * not formatted
I woke up to an alert from our Cloudera Manager managed Hadoop cluster: Error: Aug 15, 2:46:01.285 PM WARN org.apache.hadoop.security.UserGroupInformation PriviledgedActionException as:hdfs (auth:SIMPLE) cause:org.apache.hadoop.hdfs.qjournal.protocol.JournalNotFormattedException: Journal […]
Continue readingScreen Command
Because I always forget: Create screen session: screen –S [session-name] Detach from session: (keystrokes) Ctl a,d Reattach to session: Screen –R [session-name] […]
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