All post related to BigData
Last week one of my development team member came to me with below error which he faced while executing a hive query on hue. Error while processing statement: FAILED: Execution…
When I faced this issue on my cluster, I thought it can be resolved by just simple restart of cluster or restarting ResourceManager service, however I spent more than 8…
Today we will discuss about Clock Offset issue or NTP service is not synchronized to any remote server. Due to this error my services on the host is not starting.…
Today I have a requirement to implement Hive disaster recovery. I have to take a backup of Hive metadata and all hive DB's. Our development team is using different databases…
Yesterday my team mate came to me with a requirement of changing default throttle value (12) in Oozie so that he can test few scenarios. As per documentation we can…
SummaryAfter changing 'Authentication Backend Order' to external, users cannot login. This guide explains how to revert back to default behaviour, authenticating through database first.SymptomsUsers cannot login to Cloudera ManagerConditionsCloudera Manager…
Pre-requisite:We need a service account or user who can search entire active directory, mostly this should be admin user. This is also known as LDAP Bind User.Username: User1Password:******Difference between LDAP…