Security Mechanism Analysis and Research of Hadoop Cloud Computing Cluster

In this paper, we studied and proposed solutions to the hidden dangers in the security mechanism of Hadoop cloud computing cluster. By analyzing the security mechanism of Hadoop cluster, the paper identifies several security vulnerabilities as such user authentication and certification, and proposes the several solutions to improve the security mechanism of the Hadoop cloud computing. Regarding the data leak that users experience during download or upload, we present a digital envelope technology to encrypt the data transmitted. Additionally, a cryptographic algorithm is adopted to encrypt the virtual disk in cloud disk to prevent data lost. The improvement to the dispatcher in the cluster can enhance the stability of the host node and avoid the system dysfunction. Experimental results demonstrate the effectiveness of the proposed strategy.