SHARANYA BHAGAVATHULA

About

Having 4.8 years of IT Experience in Cassandra DBA, Hadoop Ecosystem tools, Apache Cassandra and implementing, designing and maintaining applications in AWS cloud and LINUX environments. Certified Apache Cassandra 3.X Administrator Associate – June 10 2020. • Worked on HDP (HortonWorks Data Platform), Cloudera distributed model, Datastax, Apache and Oracle (11g,12c Grid infrastructure Platforms). • Experience in installing, Configuring and troubleshooting Apache Hadoop in Hortonworks and Cloudera Platforms. • Hands on experience in Hadoop ecosystem components like HDFS, YARN, Sqoop, Impala, Hive, MR, Oozi, Ranger and Cloudera manager/Ambari. • Experienced in managing and understanding Hadoop log files. • Installed and configured knox and ACLs for security purpose. • Experience in Implementing High Availability of Name Node and Hadoop Cluster capacity planning, Experience in performing backups and disaster recovery of Name Node metadata and important and sensitive data residing on cluster. • Expert level installation and configuration on Cassandra (Apache Cassandra 2.x, 3.x, 4.x and Datastax 4.0.3/4.6.0/4.6.7/4.8/5.0/5.1/6.0) Multi Node Cluster and Multi Datacenter. • Deep understanding of Cassandra cluster management like add/bootstrap nodes, remove/ replace nodes to clusters. In depth knowledge in Cassandra read, write paths and internal Architecture . • Experience in creating key spaces, tables and secondary indexes in Cassandra. • Experience in setting up the required replication factors for key spaces.. • Worked on High end activities like Migration, switchover and switch back (DR drill) configurations. • Experience in Cassandra database backup and recovery, connectivity and security, database creation and role assignment using DataStax / Cassandra enterprise version. • Good knowledge at DatosIO RecoverX software to protect Cassandra data. • Hands on experience in Nodetool Commands in Cassandra and RMAN utility for Oracle backups and recoveries. • Good experience in Oracle performance tuning, AWR and Database Security. • Excellent knowledge in Hot/Cold Backup, Recovery and Cloning of databases using RMAN catalog. • Proficient in ORACLE 11g grid installation and RAC database administration on three nodes. • Experience in using OEM console for Oracle database monitoring and maintenance. • Excellent in Cassandra Opscenter configuration and monitoring. • Good experience in Apache and Confluent Kafka multinode installations, Topic creations and data streaming. • Excellent in writing Ansible scripts AND Shell Scripts for some day to day activities. • Built servers using AWS, importing volumes, launching EC2, RDS, creating security groups, auto-scaling, in the defined virtual private connection. • Experience with continuous integration tools like Jenkins.

Skills & Expertise (11)