How to install CDH patch without downtime (ZERO downtime)

1. Update new patch parcel location in parcel configuration 2. Then come to parcel page and click on "check for new parcels...

Read More

Zookeeper not starting "org.apache.zookeeper.server.quorum.QuorumPeer Unable to load database on disk "

You will find below error messages in zookeeper logs   Solution:   1. Shutdown the Zookeeper service if it is runni...

Read More

ProtocolError- Cloudera Installation

Some times you may encounter below error, while installing Cloudera Manager packages. These are the cases where you will see this error 1...

Read More

How to disable Kerberos in Cloudera CDH

To disable Kerberos in Cloudera CDH, you have to follow below steps Role Property name Proper...

Read More

How to mount HDFS in Linux (FUSE)

  1. Mounting HDFS as FUSE    FUSE (Filesystem in userspace) is a simple interface for userspace programs to export a virtual filesyst...

Read More

Spark2 installation Cloudera

Download the Spark2 CSD (jar+ Parcel) Move downloaded jar to CSD location (default /opt/Cloudera/csd) in Cloudera Server node ...

Read More

iPython integration with Spark in Cloudera

1. Download Anaconda parcel and Manifest files from https://repo.continuum.io/pkgs/misc/parcels/ 2. Start Python server in the same dir...

Read More

How to view cloudera embedded database password

Mostly while installing cloudera (hive, oozie, etc) we do not note database password. So whenever it requires its very difficult to know th...

Read More

How to fix missing and underreplicated blocks in Hadoop

Sometimes, you may encounter "missing blocks" issue in your CDH. Here i am going to help you to fix this this 1. First c...

Read More