Cloudera Manager Drop Database/User on Embedded Postgresql

First, you have to find out where the password locates. I ran these on which Cloudera Manager locates.

The cloudera-scm is the superuser. And the first line in that file is the password. To drop a database, dropdb is the command:

Commands may like:

To drop a user, using dropuser: … Continue reading “Cloudera Manager Drop Database/User on Embedded Postgresql”

Manually Upgrade CDH 5.2 in CM 5

I was interrupted again when upgrading CDH. HDFS This time, NameNode was not started, I have to bring them up and resume the upgrade progress. I didn’t save any log about NN’s error, stop all HDFS components and ran ‘Upgrade HDFS Metadata‘, then start HDFS.

YARN Next, YARN. I started YARN, and then all … Continue reading “Manually Upgrade CDH 5.2 in CM 5”

Hive MetaStore Schema Upgrade Failed When Upgrading CDH5

Manually upgrade:

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