| Troubleshooting | L37-L132 | Diagnosing and fixing HDInsight cluster issues: creation/auth, networking, storage, Ambari/HDFS/Hive/HBase/Kafka/Spark/YARN problems, performance, disk/CPU, and known error codes/workarounds. |
| Best Practices | L133-L174 | Best practices for designing, securing, monitoring, scaling, and tuning HDInsight clusters and workloads (Hadoop, Spark, Hive, HBase, Kafka), including storage, migration, and performance optimization. |
| Decision Making | L175-L200 | Planning HDInsight capacity, networking, storage, and VM sizes, plus detailed migration/upgrade paths for Hadoop, HBase, Kafka, Ambari, and HDInsight versions and load balancers. |
| Architecture & Design Patterns | L201-L215 | HDInsight cluster architecture, security, networking, HA/DR, migration from on-prem Hadoop, shared storage, streaming design, and operational pipelines with Ambari/Oozie |
| Limits & Quotas | L216-L225 | HDInsight capacity limits, node configs, Kafka-specific limits, metastore constraints, log sizing/retention, and how to request/manage CPU core quota increases. |
| Security | L226-L269 | Securing HDInsight clusters: identity and access (Entra, LDAP, Ranger, RBAC), network isolation (NSG, Private Link), TLS/encryption, Kafka/Hive/Spark security, and security best practices. |
| Configuration | L270-L326 | Configuring and tuning HDInsight clusters: networking/VPN, Ambari/Hive/Spark/HBase settings, autoscale, monitoring/logging, SSH/Jupyter/VS Code access, and script-based customizations. |
| Integrations & Coding Patterns | L327-L394 | Patterns and code samples for integrating HDInsight (Hive, Spark, Kafka, HBase, MapReduce, Sqoop) with tools, SDKs, REST/CLI, and external services like SQL, Cosmos DB, Power BI, IoT, and Synapse |
| Deployment | L395-L408 | Creating, configuring, migrating, and automating HDInsight clusters (Hadoop, HBase, Kafka) using portal, CLI, PowerShell, ARM/REST, Data Factory, Marketplace, AMA, and runbooks |