PASS SQLSATURDAY MANCHESTER Rudi Bruchez What can you do with SQL Server on

Transcription

1 PASS SQLSATURDAY MANCHESTER 2018 Rudi Bruchez What can you do with SQL Server on

2 Saturday Agenda Morning Break 09:30-09:45 Break 10:45-11:00 Lunch Sponsor sessions 12:20-13:20 Lunch 12:00-13:30 Afternoon Break 14:30-14:45 Break 15:45-16:00 Prize giving 17:00 Times can be found in the event booklet /

3 Updates & Amends Lighting Talks Paul Andrew - Cognitive Services Embedded in Azure Data Lake & U-SQL Hugo Kornelis - Managing Execution Plans Andrew Pruski - A real world implementation of SQL Server containers Alex Yates - "Reflections on a career of writing code... bring low expectations and a good sense of humour. Earplugs optional." Current amends to the day 4pm 5pm : Theatre 4 : Steve Morgan (Microsoft) with "Dealing with SQL 2008 end of life & migration options to

4 Lunch Sponsor Sessions Session Session 2 Overview of the IT Market & Emerging Recruitment Trends Ahsan Iqbal & Alex Taylor - Robert Walters in Theatre 1 Simplifying SQL Server Data Protection - Protecting Microsoft SQL Server with Rubrik Tim Hynes - Rubrik in Theatre 1 Bricking It A Lightning Tour of Azure Data Bricks Paul Andrew Adatis in Theatre

5 Gold

6 Silver

7 Bronze

8 Yes, it s me Rudi Bruchez rudi@babaluga.com

9 On Which Distribution Can I Install It? Platform Supported version(s) Red Hat Enterprise Linux 7.3 or 7.4 SUSE Linux Enterprise Server v12 SP2 Ubuntu Docker Engine 1.8+

10 Where are the Repositories? CU GDR mssql-server-2017 mssql-server-2017-gdr SQL Server 2017 Cumulative Update (CU) repository. SQL Server 2017 GDR repository for critical updates only. sudo curl -o /etc/yum.repos.d/mssql-server.repo sudo yum update mssql-server sudo yum downgrade mssql-server-<version_number>.x86_64

11 Can I Install It on Another Distribution? Maybe but not supported For other versions, symlink or repackage

12 What Are the Specifics on Linux? No named instances XFS or EXT4 No DTC Linked Servers OK (to SQL Server) unless distributed transaction Hostname must be <= 15 chars

13 Can I Move the System Database? System databases are in /var/opt/mssql/data Can be moved with mssql-conf Master can be moved since CU4 Errorlog files can be moved since CU4./mssql-conf set filelocation.errorlogfile

14 Are There Specific Tools? Cross-platform script generator, mssql-scripter. --schema-and-data Cross-platform Dynamic Management View (DMV) monitor, DBFS tool. dbfs c [config file] m [mount directory]

15 What About the Collations? Default collation is SQL SQL_Latin1_General_CP1_CI_AS You can change it afterwards You must stop the service

16 Are There Unsupported Features? Transactional and Merge replications StretchDB FILESTREAM Buffer Pool Extension xp_ procedures

17 Are there Unsupported Services? SQL Server Browser SQL Server R services Analysis Services Reporting Services Data Quality Services Master Data Services

18 Can I Use In-Memory OLTP or ColumnStore? Yes! Small hickup: SQL Server 2014 databases using Inmemory OLTP cannot be restored using SQL Server 2017 on Linux. Restore first on on Windows, then backup again

19 Where is the Configuration Manager? Mssql-conf Python script, combination of sp_configure and SSCM Server collation SQL Agent settings Database mail profile Set the SA password Default directories SQL Server memory limit TCP port trace flags sudo /opt/mssql/bin/mssql-conf set telemetry.customerfeedback false

20 How to Install SQL Server on Linux? Add the repositories Use the package manager Configure with mssql-conf Configuration is in a conf file Upgrade using the package manager

21 Can We Use Environment Variables? Yep sudo ACCEPT_EULA='Y' MSSQL_PID='Developer' MSSQL_SA_PASSWORD='Admin1234' MSSQL_TCP_PORT=1234 /opt/mssql/bin/mssqlconf setup

22 Can We Exchange Databases? Backup / Restore WITH MOVE Detach / Attach BACPAC

23 Using Docker Can run any edition Best way to have several instances Can get high availability with Kubernetes Can use NFS for storage Use envvars when starting a container linux-configure-docker?view=sql-server-linux- 2017#production

24 Do I Have Client Tools on Linux? Mssql-tools SSMS Sql Server Operations Studio

25 How To Access It from Client Code? Microsoft JDBC 6.4 it is open source, MIT licence Microsoft PHP Driver it is open source, MIT licence March 23, 2018 production release version 5.2.0

26 How To Access It from Client Code? ODBC Driver 17 for SQL Server closed source.net Core System.Data.SqlClient built into.net Core. Open Source

27 How To Access It from Client Code? Node.js Tedious Javascript TDS implementation Python ODBC, via pyodbc

28 Can I Use CLR integration? Before: Code Access Security (CAS) (SAFE, EXTERNAL_ACCESS, UNSAFE) No longer supported Now: sp_configure clr strict security enabled by default treats SAFE and EXTERNAL_ACCESS as marked UNSAFE Mark it as trusted: sys.sp_add_trusted_assembly

29 And About SQL Server Agent? SQL Server 2017 CU4, included with the mssql-server package, disabled by default. Before, installed separately. sudo /opt/mssql/bin/mssql-conf set sqlagent.enabled true sudo systemctl restart mssql-server

30 SQL Server Agent Cannot run external scripts no bash no Powershell no replication agents no Change Data Capture

31 Can I Use Integrated Security? Yes, you can, you need to use Kerberos Reference the AD as DNS server Install realmd & krb5-user Configure realmd, join the domain Set the SPN, create a keytab file for Kerberos

32 Can I Secure the Connection Using SSL? Use openssl to create self-signed certificate or don t do that mssql-conf

33 And About Full Text Search? FTS is supported not all filters External indexer is ported Statistical Semantic Search in a database

34 Integration Services Support Dtexec command-line Decrypt password using command-line or envvar ODBC for Linux Mapping of Windows style paths As files, no catalog database Schedule using cron linux-ssis-known-issues?view=sql-server-linux- 2017#components

35 Can I Setup High Availability? All of it! Log shipping Failover Clustering AlwaysOn Availability Groups, and BAG

36 How to do Log shipping?

37 How to do Failover Clustering? SQL SERVER PACEMAKER COROSYNC LINUX LINUX NFS, iscsi, SMB Manage resource groups Start, stop, monitor resources Synchronization Restart processes Configuration, notification Quorum notification

38 What is Pacemaker? Resource management CRM Cluster Resource Manager Moves the resources VIP, no virtual network name

39 What is Corosync? The messaging layer Heatbeat Node membership, notification of nodes joining or leaving Messaging between the nodes Provides quorum

40 How to Manage All That? PCS - Pacemaker/Corosync Configuration System

41 What is Different From Windows? Quorum Node 1 Node 2 WSFC Witness

42 What is Different From Windows? Quorum Node 1 Node 2 WSFC DB DISK VIP VNN Witness

43 What is Different From Windows? Quorum Node 1 Node 2 COROSYNC Witness Node 3

44 What is Different From Windows? Node 1 Node 2 DB DISK VIP VNN Pacemaker

45 What is Different From Windows? Node 1 Node 2 Fencing Agent Pacemaker Fencing Agent

46 How to Avoid Split Brain? Quorum Fencing No witness => 3 nodes For AG, configuration-only replica in CU1. Available for BAG Kill the other node STONITH hardware Integrated boards Power switches Shared disk-based STONITH Hypervisor-based STONITH

47 What About Fencing? In a test environment pcs property set stonith-enabled=false No fencing agent yet for cloud environments or Hyper-V fence_vbox - Fence agent for VirtualBox

48 Cluster on Linux No SQL Server internal knowledge returns the node name sys.dm_os_cluster_nodes No VNN, but VIP managed by Pacemaker Add manually a DNS entry TempDb on shared storage No named instance => only active-passive

49 AlwaysOn Availability Groups Can be set up up without Pacemaker Choose external cluster CU1: configuration-only replica for failover (also with BAG). Express Edition Can cross systems using the None cluster-type

50 Where is the Configuration? Node 1 Node 2 WSFC Witness

51 Where is the Metadata? Node 1 Node 2 Pacemaker Node 3 Conf-only Master

52 How to Set Up AG on Linux? Install pcs installs Pacemaker and Corosync Configure Install mssql-server-ha Grant Access to Pacemaker on the instances Create the AG

53 Setup AG sudo /opt/mssql/bin/mssql-conf set hadr.hadrenabled 1 exchange certificates

54 How to Setup AG CREATE AVAILABILITY GROUP [ag1] WITH (DB_FAILOVER = ON, CLUSTER_TYPE = NONE) Cluster Types: WSFC Windows/Windows cluster (Windows clustering) EXTERNAL Linux/Linux cluster (Linux clustering) NONE (Windows/Linux, no cluster!)

55 How to Manage AG? - Do NOT use T-SQL command for AG failover, but pacemaker commands - Windows/Linux with NONE can be used for migration to Linux - The Availability Group Listener and Read Only Routing is supported

56 Thank you, Learn and Enjoy If you have any queries, find a Helper (Green shirts) or Organiser (Yellow). Please be aware of your own and other peoples opinions around you. We support an open policy, and would love everyone to get on, but realise that doesn't always happen. Please thank the Sponsors and visit them, we can not run it without their support. And the helpers, as they make your day happen. Thanks SQL Saturday Manchester Team (Shaun, Paul, Martin &

57 That s all folks!