Write Ahead Log (WAL) is a file attached to every Region Server inside the distributed environment. The WAL stores the new data that hasn’t been persisted or committed to the permanent storage. It is used in case of failure to recover the data sets.
Sequence files are binary files containing serialized ...READ MORE
The default directory of Hadoop log file ...READ MORE
The NameNode stores modifications to the file ...READ MORE
It depends on what kind of testing ...READ MORE
Firstly you need to understand the concept ...READ MORE
org.apache.hadoop.mapred is the Old API
org.apache.hadoop.mapreduce is the ...READ MORE
You can create one directory in HDFS ...READ MORE
In your case there is no difference ...READ MORE
Apache Zookeeper says that it is a ...READ MORE
Configured is a default implementation of the Configurable interface - ...READ MORE
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