BigData
"You can have data without information, but you cannot have information without Big data."
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BigData
Overview of BigData
Sources of BigData
Pros & Cons of BigData
Solutions of BigData
Hadoop Admin
Hadoop
Overview of HDFS
Overview of MapReduce
Apache YARN
Hadoop Architecture
Planning of Hadoop Cluster
Administration and Maintenance
Hadoop Ecosystem
Setup HDP cluster from scratch
Installation and Configuration
Advanced Cluster Configuration
Overview of Ranger
Kerberos
Installing kerberos/Configuring the KDC and Enabling Kerberos Security
Configure SPNEGO Authentication for Hadoop
Disabled kerberos via ambari
Common issues after Disabling kerberos via Ambari
Enable https for ambari Server
Enable SSL or HTTPS for Oozie Web UI
Hadoop Dev
Solr
Solr Installation
Commits and Optimizing in Solr and its use for NRT
Solr FAQ
Apache Kafka
Kafka QuickStart
Get last access time of hdfs files
Process hdfs data with Java
Process hdfs data with Pig
Process hdfs data with Hive
Process hdfs data with Sqoop/Flume
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Recent Posts
Purging history/old data in oozie database
Attempt to add *.jar multiple times to the distributed cache
hive jdbc in zeppelin throwing permission error to anonymous user
Namenode may keep crashing due to excessive logging
ERROR : Failed with exception org.apache.hadoop.security.AccessControlException: Permission denied. user=user1 is not the owner of inode=test_copy_1
Select does not return any row in mr execution engine but returns in tez via beeline
knox is not getting start, failing with error Gateway SSL Certificate is Expired
Hive metastore critical alerts with ExecutionFailed: Execution of ‘export HIVE_CONF_DIR=’/usr/hdp/current/hive-metastore/conf
Sqoop import is failing after enabling atlas with ERROR security.InMemoryJAASConfiguration: Unable to add JAAS configuration
/usr/hdp/2.6.1.0-129/atlas/hook-bin/import-hive.sh is failing with Exception in thread “main” java.lang.NoClassDefFoundError: org/apache/hadoop/hbase/util/Bytes
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