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Architecting Big Data Applications with HDInsight
- 4. Oozie Metastore Hive Metastore ADLS Storage (Azure) GW1 Head Node 1 Worker Node Worker Node Worker Node Worker Node Zookeeper1 Edge Node VNET Subnet GW2Head Node 2 Zookeeper2 Zookeeper3
- 5. Oozie Metastore Hive Metastore ADLS Storage (Azure) GW1 Head Node 1 Worker Node Worker Node Worker Node Worker Node Zookeeper1 Edge Node VNET Subnet GW2Head Node 2 Zookeeper2 Zookeeper3 Yarn RM Templeton Hive Server 2 Ambari Server ATS Spark Thrift Server Livy Zeppelin Spark History Server Oozie Public Endpoint Authentication Routing Zookeeper HMaster Node Manager Local HDFS Oozie Client Region Server Storm Worker
- 6. Capability ADLS Azure Blob Geographic Availability East US 2, Central US, North Europe All Data Centers HDFS Yes (Web HDFS) No Scale No Limit on Bandwidth or Storage size Limits -5PB Storage -50Gbps Bandwidth File Folder level ACL’s Yes No Role Based Access Yes No Encryption Yes Yes Geo- Replication No Yes [LRS, GRS, RA-GRS] Cost [1PB] $40K HOT $20K COOL $16K GA Date Nov 16th 2016 Feb 1st 2010
- 7. https://azure.microsoft.com/en-us/blog/announcing-larger-higher-scale-storage-accounts/ Resource New Limit Max capacity for Blob storage accounts 5PB (10x increase) Max TPS/IOPS for Blob storage accounts 50K (2.5x increase) Max ingress for Blob storage accounts 50Gbps (2.5-10x increase) Max egress for Blob storage accounts 50Gbps (2.5-5x increase)
- 8. https://docs.microsoft.com/en-us/azure/data-lake-store/data-lake-store-comparison-with-blob-storage
- 12. 1. Orchestrate, monitor & schedule • compose data processing, storage & movement services (on premises & cloud) 2. Automatic infrastructure mgmt • combine pipeline intent w/ resource allocation & mgmt • data movement as a service (global footprint & on premises) 3. Single pane of glass • one place to manage your network of data flows
- 15. Source 1 Source n Source 2 Source 3 Result Set 1 HDInsight Cluster Result Set 2 Result Set 3 Result Set n
- 20. https://blogs.msdn.microsoft.com/ashish/2017/03/24/hive-metastore-in-hdinsight-tips-tricks-best-practices Default Custom No additional cost Bring your own Azure SQL DB Scope – Cluster Lifecycle Scope – Beyond Cluster lifecycle 5 DTU [Database Transaction limit] Bring your own [S2 or above] Sharing - No Sharing – Multiple clusters can share Caution: - Different Hive versions can cause compatibility issues
- 24. Why Sharding? Azure Blob storage has throttling limits Bandwidth [20Gbps] and Storage [500TB] are top limits that we hit all the time How to mitigate? Shard data across multiple storage accounts Use Azure DataLake store or larger, higher scale storage accounts Randomize Storage account prefixes
- 29. Transparent to users, BI tools, etc. – HS2/JDBC is the access point YARN Cluster ODBC JDBC SQL Queries LLAP Daemon LLAP Daemon LLAP Daemon LLAP DaemonQuery Coordinators DAGs
- 30. 4X Date Size – 1TB TPCDS Worker Nodes - 32 D14_V2 File Format - ORC Config – No special settings, default HDI Hive on Tez Hive on Tez + WASB Driver Improvements Interactive Query [COLD] Interactive Query [HOT]