Hi! Ho! Hi! Ho! SQL Server on Linux We Go!

Hi! Ho! Hi! Ho!
SQL Server on Linux We Go!
Janis Griffin, Database Performance Evangelist, SolarWinds

© 2017 SolarWinds Worldwide, LLC. All rights reserved.
Who Am I
• Senior DBA / Performance Evangelist for SolarWinds
• Janis.Griffin@solarwinds.com
• Twitter® - @DoBoutAnything
• Current – 25+ Years in Oracle®, DB2®, ASE, SQL Server®, MySQL®
• DBA and Developer
• Specialize in Performance Tuning
• Review Database Performance for Customers and Prospects
• Common Question – How do I tune it?
• Excited about SQL Server on Linux!
• Opens up a whole new area to explore

• Why Put SQL Server on Linux & Docker
• Distributions, Architecture & Licensing
• How to Install, Backup & Maintain
• Several Linux Commands
• SQLCMD
• Client Connectivity & Tools
• SQL Operations Studio
• Demo
• Summary
Agenda

• IT Landscape is Constantly Changing
• Many OSs (Linux, Windows, etc.), different languages, multiple data types
• Mix of on-premises/cloud/hybrid environments
• Complex environments can challenge IT to:
• Require specific skill sets (personnel)
• Reduce operational costs
• Microsoft has committed to providing interoperability to open source
• Gives industry leading performance & security
• TPC benchmark stats for SQL Server 2017 on Linux
• http://www.tpc.org/tpch/results/tpch_result_detail.asp?id=117041701
• Security supports Active Directory authentication
• Single sign-on with no password
• Uses domain credentials and Kerberos protocol
Why SQL Server 2017 on Linux & Docker?

• Redhat 7.3 or 7.4
• Red Hat Enterprise Linux
• Oracle Enterprise Linux
• CentOS
• SuSE v12 SP2
• SUSE Enterprise Linux
• Debian 16.04
• Ubuntu Server
• Ubuntu Workstation
• Docker Engine 1.8+
• For Mac & Linux
• SQL-server-linux-setup
Distributions & Architecture
SQLPAL = SQL
Platform
Abstraction
Layer
microsoft.blog.sql-server-on-linux-how-introduction

• Three Main Editions – Express, Standard & Enterprise
• Rewritten so there is common programming across all editions
• Develop once and purchase different editions to scale
• Developer & Test edition include Enterprise features
• Buy same SKUs and get rights to run on both Windows & Linux
• SQL Server Software Assurance Benefits (SA)
• Standard / Enterprise
• Next version rights
• License Mobility to shared 3rd party servers
• Fail-Over servers for high availability
• Enterprise
• Machine Learning Server for Hadoop
• https://blogs.technet.microsoft.com/dataplatforminsider/2017/09/26/in-database-machine-
learning-in-sql-server-2017/
• Power BI Report Server
• Need to acquire when buying initial license – can’t add later
SQL Server 2017 Licensing

• License Mobility
• Requires SA on licenses running the workload
• Deploy your workload only to authorized Mobility Partners
• Fail-Over servers for high availability
• Combined with license mobility, provides full flexibility on dedicated or 3rd party
• For planned or unplanned downtime
• Secondary/passive SQL server is granted through SA
• Without SA, both active & passive servers need to be licensed
• 90 day reassignment rule is waived due to License Mobility SA benefits
• Limited Time Special Offer Runs October 2nd – June 30th, 2018
• Red Hat & Microsoft have created a promotion
• New orders for RHEL Enterprise Linux for use on SQL Server 2017
• Webinar - SQL Server 2017 Pricing & Licensing Microsoft Engineering Town Hall
SQL Server 2017 Licensing – Cont.

• / = Root
• Every single file & directory starts here
• Only ‘root’ user has write privilege
• /root is ‘root’ user’s home directory
• Not the same as /
• /var = Variable Files
• Files can grow under this directory
• SQL Server default directory
• /var/opt/mssql
• Holds log and config files
• Also system log files, database files, etc
• /opt = Optional add-on Applications
• Holds SQL Server application (default)
• /opt/mssql/bin
• /opt/msql/lib
Linux Directory Structure

• Directory != Drive
• /var/opt/mssql/data can be on different device than /var/opt/mssql/log
• A ‘mssql’ user & ‘mssql’ group is automatically setup on install
• Home directory is /home/mssql
• Application files are owned by ‘mssql’
• Some commands need ‘sudo’ privileges
• ‘sudo’ means ‘Super User Do’
• Linux is case sensitive
• ‘hello world’ != ‘HELLO WORLD’
• Hidden files are prefaced with a dot
• .bash_profile
• Bash Shell is common command language
• Built from Bourne shell with added plugins (Bourne Again Shell)
• Used for scripting
More About Linux

• ls -ltra
• List directory contents (i.e. ls –ltra /var/opt/mssql)
• -l = long listing –t = sort newest first –r = reverse –a all files
• cd
• Change directory (i.e. cd /var/opt/mssql/log)
• ps –ef
• Displays active processes (i.e. ps –ef | grep sql)
• -e = every process –f = full format listing
• top = interactive view
• grep
• Seaches files or standard output for pattern matching
• Example: history | grep –i mssql-conf
• man
• Interface to on-line reference manuals (i.e. man ps)
Useful Linux Commands
A great way to get familiar with
Linux commands is to download:
http://www.cygwin.com/
Provides functionality similar to a
Linux distribution on Windows.

• PUTTY – free SSH & Telnet Client
• https://www.ssh.com/ssh/putty/download
• Login as root or sudo
sudo curl -o /etc/yum.repos.d/mssql-server.repo
https://packages.microsoft.com/config/rhel/7/mssql-server-2017.repo
sudo yum install -y mssql-server
Installing Sql Server 2017 On Centos 7

sudo yum install -y mssql-server
Installing SQL Server 2017 on Centos 7 – cont.

sudo /opt/mssql/bin/mssql-conf setup

systemctl status mssql-server

sudo curl -o /etc/yum.repos.d/msprod.repo https://packages.microsoft.com/config/rhel/7/prod.repo
sudo yum install -y mssql-tools unixODBC-devel
Installing MSSQL-Tools on Centos 7

Installing MSSQL-Tools on Centos 7 – cont.

• SQL Command line Interface
• ‘sqlcmd -?’ shows all parameters
• Connect using
• Localhost
• IP address
• IP address, port
• Run a script at command line
sqlcmd -S 10.199.8.172,1433 -U sa
-i waits.sql -o waits.log
SQLCMD

• Must first install SQL Server 2017 repo
sudo yum install mssql-server-agent
sudo systemctl restart mssql-server
Installing SQL Server Agent on Centos 7

• Can use Docker for Linux/Mac/Windows
• Installs in /var/lib/docker – can create symbolic links
• Use if you want to run multiple instances on same server
• Download Docker for Centos
• Install Docker
• Start Docker
• Test Docker
Installing SQL Server 2017 Container Image with Docker
wget https://download.docker.com/linux/centos/7/x86_64/stable/Packages/docker-ce-17.09.0.ce-1.el7.centos.x86_64.rpm
sudo yum install ./docker-ce-17.09.0.ce-1.el7.centos.x86_64.rpm
systemctl start docker
sudo docker run hello-world
Docker provides an additional layer of
abstraction & automation at the operating-
system-level. It can package an application &
its dependencies in a virtual container. This
helps enable flexibility & portability to run on-
premises, public & private cloud, bare metal,
etc.

• Get SQL Server for Linux
• Create container called sql1
• Access via docker command
• Access via sqlcmd
SQL Server 2017 Container Image with Docker – cont.
sudo docker pull microsoft/mssql-server-linux:2017-latest
docker run -e 'ACCEPT_EULA=Y' -e 'MSSQL_SA_PASSWORD=Mys3cr3tpazz' -p 1433:1433
--name=sql1 –v sql1:/var/opt/mssql -d microsoft/mssql-server-linux:2017-latest
docker exec -it sql1 /opt/mssql-tools/bin/sqlcmd -S 10.199.8.172 -U sa -P Mys3cr3tpazz
sqlcmd -S 10.199.8.172,1433 -U sa -P Mys3cr3tpazz

• docker ps –a
• Show list of containers
• docker container <start / stop> <container_name>
• docker container rm <container_name>
• BEWARE! This will remove the sql server instance
• docker container stats
• List CPU, Memory, I/O Stats for each container
• docker volume ls
• Shows volume names
• docker volume inspect <volume_name>
• Shows name and location of data
Useful Docker Commands

Docker Command Example

SQL Server 2017 Container Images

• Make a directory for backups
docker exec -it sql1 mkdir /var/opt/mssql/backup
• Download example database
sudo curl -L -o wwi.bak
'https://github.com/Microsoft/sql-server-samples/releases/download/wide-world-importers-v1.0/WideWorldImporters-Full.bak‘
• Copy backup of example database to new backup directory
docker cp wwi.bak sql1:/var/opt/mssql/backup
• List files from backup
docker exec -it sql1 /opt/mssql-tools/bin/sqlcmd -S localhost
-U SA -P 'Mys3cr3tpazz'
-Q 'RESTORE FILELISTONLY FROM DISK = "/var/opt/mssql/backup/wwi.bak"'
| tr -s ' ' | cut -d ' ' -f 1-2
Backup & Restore In Docker

• Restore from backup
docker exec -it sql1 /opt/mssql-tools/bin/sqlcmd
-S localhost -U SA -P 'Mys3cr3tpazz'
-Q 'RESTORE DATABASE WideWorldImporters FROM DISK = "/var/opt/mssql/backup/wwi.bak" WITH MOVE
"WWI_Primary" TO "/var/opt/mssql/data/WideWorldImporters.mdf", MOVE "WWI_UserData" TO
"/var/opt/mssql/data/WideWorldImporters_userdata.ndf", MOVE "WWI_Log" TO
"/var/opt/mssql/data/WideWorldImporters.ldf", MOVE "WWI_InMemory_Data_1" TO
"/var/opt/mssql/data/WideWorldImporters_InMemory_Data_1"'
Restore & Backup In Docker – cont.

docker exec -it sql1 /opt/mssql-tools/bin/sqlcmd
-S localhost -U SA -P 'Mys3cr3tpazz'
-Q "BACKUP DATABASE [WideWorldImporters] TO DISK =
N'/var/opt/mssql/backup/wwi_20171127.bak' WITH NOFORMAT, NOINIT, NAME =
'WideWorldImporters-full', SKIP, NOREWIND, NOUNLOAD, STATS = 10“
docker cp sql1:/var/opt/mssql/backup/wwi_20171127.bak /backup/wwi_20171127.bak
Backup & Copy Files Out of Container

• Command-line Tools
• sqlcmd & bcp
• SSMS
• Connect remotely from Windows
• Includes PowerShell
• Visual Studio Code
• How-to-develop-use-vscode
• SQL Server Data Tools (SSDT)
• For Visual Studio
• Build project on Windows
• Deploy to Linux
• SQL Operations Studio
• Installs on Linux/Windows/MacOS
• GUI interface – sqlops
https://docs.microsoft.com/en-us/sql/sql-operations-studio/download
Client Connectivity & Tools

Example of SQL Operations Studio (sqlops)

• Many different libraries or drivers for Linux/Windows/MacOS
• Step by step how-to:
• https://www.microsoft.com/en-us/sql-server/developer-get-started/
Client Connectivity & Tools – cont.

• Terminal
• Top
• Directory Structure
• SQLCMD
• Docker Commands
• Create an instance
• SSMS
• SQLOps
Demo

• SQL Server 2017 (Linux/Windows/MacOS)
• Can help with the ever changing landscape of IT organizations
• Develop applications once
• Developer & Test editions contain all enterprise features
• But deploy & scale on-premises, in the cloud or run a hybrid solution
• Microsoft has committed to open source communities
• Providing many different client libraries to run Linux/Windows/Docker
• Making licensing simple
• Buy same SKUs and get rights to run on both Windows & Linux
• Easy to install, backup & maintain
• Need to learn a few Linux / Docker commands
• sqlcmd & bcp
• SSMS & sqlops
Summary

www.solarwinds.com/dpa-download/
Resolve Performance Issues quickly—Free Trial
• Try Database Performance Analyzer FREE for 14 days
• Improve root cause of slow performance
o Quickly identify root cause of issues that impact end-user
response time
o See historical trends over days, months, and years
o Understand impact of VMware® performance
o Agentless architecture with no dependence on Oracle Packs,
installs in minutes

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