Web16. can NameNode and dataNode are commodity hardware? A.) No.. beacuse Namenode built in with high memory space, and with higher quality software. but datanode built in with cheaper hardware. 17. Why do we use Hdfs for files with large data sets but not when there are lot of small files? WebMay 5, 2024 · 1) The Hadoop Distributed File System is designed for big data, not only for storing big data but also for facilitating the processing of big data. 2) HDFS is cost-effective because it can be run on cheap hardware and does not require a powerful machine. 3) HDFS has high fault tolerance since if a machine within a cluster fails, a replica of ...
The memory consumption of hadoop
WebDec 6, 2024 · It scales horizontally, which means we can add as many nodes/servers without shutting down the system, which with commodity hardware can be very cost effective. It can be used to process both structured as well as unstructured data. It is highly optimized for very large sets of data. ... NameNode can crash with a corrupted edit log. WebWell, HDFS works with a main NameNode and multiple other datanodes, all on a commodity hardware cluster. These nodes are organized in the same place within the … small wood mouldings
What is the purpose of data and name node in hadoop? - Quora
WebIt is a well-known fact that Hadoop NameNode has experienced with excessive metadata generation with very small sized files [2, 22,23]. MDS can be out of RAM space if the file … WebYou can also check it by using the NameNode web UI for seeing the HDFS directory. These are very common type of Hadoop interview questions and answers faced during the interview of a fresher. Frequently Asked Question in Hadoop Interview. 11) Which one is the master node in HDFS? Can it be commodity hardware? Name node is the master … WebSep 20, 2024 · The following factors should be considered while deploying Hardware for NameNode-. 1. The NameNode handles the data storage on the cluster. 2. However the NameNode is one of the Master nodes in HDFS, it is more robust to hardware failures. Meanwhile, the configuration should be reliable to make the Master nodes ready all the … hikvision intercom firmware update