IJIRCSTJournal International Journal of Innovative Research in Computer Science and Technology I S Volume 3 Issue 2 Computer Science & Engineering English March - April 2015 N N Y 2019 11 28 Computer Sciences Improved Fault-tolerant Architecture for HDFS using Distributed Namespace English Y 8 11 Veena Dange English Y Pallavi Deshmukh English N Sayali Deshpande English N Madhubala Girase English N In HDFS, the Namenode handles all the metadata about the files. Client contacts the Namenode for accessing any file to get its mapping to the blocks on Datanodes. Namenode has to store this data in its RAM to allow faster access to clients on their requests. Hence HDFS Datanodes’ metadata is restricted by the capacity of the RAM. This makes the Namenode as the single point of failure in HDFS. In our approach we present multiple Namenodes with distributed namespace using Chord protocol. Multiple Namenodes will be arranged in Chord ring to provide scalable and fault tolerant architecture in HDFS. English Chord DHT, HDFS, MLT, Namenode. https://ijircst.org/abstract.php?article_id=154