BigData- The Next Big Thing: hadoop

hadoop

Showing posts with label hadoop. Show all posts

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...

There are couple of methods to find disk errors or disk failures, below are some of the methods to find failures. 1. dmesg dmesg (Disp...

Some time it is very difficult to manage so many scheduler queues. In case if some thing goes wrong with your cluster or you want to build...

To install Hadoop in Linux, we have to disable Firewall service and added to chkconfig to stop from booting. After sometime, if you want t...

While running hadoop jobs, you may encounter with below type warning WARN util.NativeCodeLoader: Unable to load native-hadoop library ...

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

1. Download Hadoop-Splunk Connector from splunk website https://splunkbase.splunk.com/app/1180 2. Log-in into Splunk Web UI Select Manag...

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

1. Download the latest fsimage copy hdfs dfsadmin -fetchImage /tmp ll /tmp | grep -i fsimage 2. Convert the fsimage into tex...