Azure Table Storage Cheap, fast and scalable storage Anton Boyko Ukrainian Azure Community Founder Microsoft Azure MVP

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AZURE STORAGE

Azure Storage Storage in the cloud  Scalable, durable, available  Exposed via RESTful web services  Only pay for what the service uses

Azure Locations

Azure Storage Abstractions BlobsDrivesFiles QueuesTables

Azure Storage Redundancy Locally redundant Makes multiple synchronous copies of your data within a single datacenter Geographically redundant Same as LRS, plus multiple asynchronous copies to a second datacenter hundreds of miles away Read-access geographically redundant Same as GRS, plus read access to the secondary datacenter

Azure Storage Libraries

AZURE TABLE STORAGE

What is Azure Table Storage? Is not  Relational Database Management System  No-SQL Database Management System  Database Management System Is  Key value storage  Software as a service

Azure Table Storage Concept EntityTableAccount azureua Speakers FullName FacebookUrl FullName TwitterUrl Registration FullName

Azure Table Storage Operations Tables  Create  Query  Delete Entities  Insert  Update  Merge  Replace  Upsert  Delete  Query

Azure Table Storage Entity  RowKey  PartitionKey  Binary strings  Indexed fields  Timestamp  Optimistic concurrency  Custom fields  String, Binary, Integer, Double, Guid, DateTime, Bool  There are no fixed schema  Up-to 1MB entity data  Up-to 255 fields (including RowKey, PartitionKey, Timestamp)

No Fixed Schema FIRSTLASTBIRTHDATE WadeWegner2/2/1981 NathanTotten3/15/1965 NickHarrisMay 1, 1976 FAV SPORT Canoeing

Querying FIRSTLASTBIRTHDATE WadeWegner2/2/1981 NathanTotten3/15/1965 NickHarrisMay 1, 1976 ?$filter=Last eq ‘Wegner’

Querying GET /myaccount/Customers() ?$filter=(Rating ge 3) and (Rating le 6) &$top=10 &$select=PartitionKey,RowKey,Address,CustomerSince

Purpose of the PartitionKey  Entity location Entities in the same partition will be stored together Efficient querying and cache locality Endeavour to include partition key in all queries  Entity group transaction Atomic multiple Insert/Update/Delete in same partition in a single transaction  Table scalability Target throughput – 500 tps/partition, tps/account Microsoft Azure monitors the usage patterns of partitions Automatically load balance partitions Each partition can be served by a different storage node Scale to meet the traffic needs of your table

PARTITIONKEY (CATEGORY) ROWKEY (TITLE) TIMESTAMPMODELYEAR BikesSuper Duper Cycle…2009 Bikes Quick Cycle 200 Deluxe …2007 ………… CanoesWhitewater…2009 CanoesFlatwater…2006 PARTITIONKEY (CATEGORY) ROWKEY (TITLE) TIMESTAMPMODELYEAR Rafts14ft Super Tourer…1999 ………… Skis Fabrikam Back Trackers …2009 ………… TentsSuper Palace…2008 PARTITIONKEY (CATEGORY) ROWKEY (TITLE) TIMESTAMPMODELYEAR BikesSuper Duper Cycle…2009 Bikes Quick Cycle 200 Deluxe …2007 ………… CanoesWhitewater…2009 CanoesFlatwater…2006 Rafts14ft Super Tourer…1999 ………… Skis Fabrikam Back Trackers …2009 ………… TentsSuper Palace…2008 Partitions and Partition Ranges

AZURE STORAGE SECURITY

Azure Storage Security  HTTPS  Two 512bit symmetric keys per storage account  More granular security via Shared Access Signatures  Ad-hoc  Policy based

Azure Table Storage SAS  Table granularity Can grant access to an entire table (tn) or to a table range defined by a table (tn) along with a partition key range (startpk/endpk) and row key range (startrk/endrk)  Access permissions Can grant access rights to the specified table or table range such as Query (r), Add (a), Update (u), Delete (d) or a combination of them  Time range Can limit the SAS token access time. Start time (st) is optional but Expiry time (se) is mandatory, and no limits are enforced on these parameters. Therefore a SAS token may be valid for a very large time period

SAS Example GET ?$filter=PartitionKey eq 'Coho Winery‘ &sv= &tn=MyTable &st= T08:49Z &se= T08:49Z &sp=r &spk=Coho Winery &srk=Auburn &epk=Coho Winery &erk=Seattle &sig=jDrr6cna7JPwIaxWfdH0tT5v9dc=

AZURE TABLE STORAGE SCENARIOS

Azure Table Storage Scenarios  Application logs  Static dictionaries and/or lists  Session state  Distributed cache  Configuration storage

AZURE TABLE STORAGE PRICING

Azure Table Storage pricing RedundancyPrice LRS$0.07 per GB GRS$0.095 per GB RA-GRS$0.12 per GB Transactions $ per 100,000 transactions

Questions? Anton Boyko Ukrainian Azure Community Founder Microsoft Azure MVP