Hadoop Consulting & Administration

Hadoop remains the foundation for many big data workloads in finance, healthcare, retail, and telecom. Zwiegnet provides deep expertise in running stable, secure, and scalable Hadoop ecosystems on Linux — from legacy CDH/HDP to modern Apache Hadoop and cloud-native alternatives.

Our Hadoop services include:

• Hadoop Cluster Design & Deployment – Architecture planning for Apache Hadoop, Cloudera CDP, or Hortonworks; node sizing, rack awareness, and high-availability setup.
• Performance Tuning & Optimization – YARN resource management, HDFS block size/striping, Hive/Impala/Spark tuning, and benchmarking for large-scale data processing.
• Security Hardening – Kerberos integration, Ranger/Sentry authorization, TLS encryption, Knox gateway, and compliance with PCI-DSS, HIPAA, GDPR.
• High Availability & Disaster Recovery – NameNode HA, ResourceManager HA, HDFS federation, ZooKeeper quorum, and replication for zero-downtime operations.
• Integration & Ecosystem Management – Hive, Impala, Spark, HBase, Kafka, Oozie, Sqoop, Flume; integration with AD/LDAP/Kerberos and modern data lakes.
• Monitoring & Automation – Cloudera Manager/Ambari, Prometheus/Grafana, Ansible for configuration, and automated scaling/patching.
• Migration & Modernization – Upgrade legacy CDH/HDP to CDP, migrate to Apache Hadoop, or transition to cloud-native (Databricks, Snowflake, Delta Lake).
• Troubleshooting & Support – Rapid diagnosis of NameNode issues, YARN queue contention, data corruption, and performance bottlenecks.

Ideal for: enterprises running large-scale Hadoop clusters for data warehousing, ETL, machine learning, fraud detection, and analytics — seeking maximum uptime, security, and cost efficiency.

Located between Madison and Milwaukee, Wisconsin since 2009 — direct access to Hadoop specialists with proven experience in enterprise big data environments.