Hadoop Administration
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Monday, October 14, 2019
Fun with Linux
Check this >>
https://www.ostechnix.com/bash-insulter-script-insults-user-typing-wrong-command/
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Hive Architecture
Hive Architecture in One Image
While running a Tez job, it fails with 'vertex failure' error
The error below is seen while a Hive query runs in TEZ execution mode: Logs: Vertex failed, vertexName=Reducer 34, vertexId=vertex_1424...
NameNode HA fails over due to connection interruption with JournalNodes
Issue: Occasionally NameNode HA fails over due to network connection interruption with JournalNodes. The error message in NameNode log:...
Step by step process of Changing Ambari Metrics Collector service from Embedded to distributed mode - HDP
Steps: # STOP AMS service # Create directories in HDFS $ hdfs dfs -mkdir -p /apps/ams/metrics $ hdfs dfs -chown -R ams:hadoop /apps/...
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