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Introduction to SQL Server on RHEL


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An introduction to SQL Server on Red Hat Enterprise Linux.

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Introduction to SQL Server on RHEL

  1. 1. Introduction to SQL Server on RHEL @TanakaTakayoshi 2018 July ver1
  2. 2. AGENDA Quick Start SQL Server Why SQL Server on RHEL? Quick Troubleshooting Monitoring Active Directory Authentication High Availability Basis
  4. 4. Why SQL Server on RHEL?
  5. 5. High Performance
  6. 6. Supported Platform Windows Server/Windows Desktop Red Hat Enterprise Linux 7.3+ SUSE Enterprise Linux SLES v12 SP2 Ubuntu 16.04 LTS Docker: ◦ Windows & Linux (Ubuntu) image ◦ RHEL base image is planning via Microsoft Container Catalog (MCR) for-installing-sql-server?view=sql-server-2017 2017&viewFallbackFrom=sql-server-2017#system
  7. 7. architecture Linux Kernel Linux Process Linux Host Extension SQL PAL Managed SQL OS v2 SQL OS Direct API Win 32 like APIs Software Isolated Process SQL Server Database Engine SSIS Linux OS call ABI call
  8. 8. Install & Update Fully managed by Linux package manager (yum, dnf, apt-get …) Install example Update example $ sudo curl -o /etc/yum.repos.d/mssql-server.repo $ sudo yum install -y mssql-server $ sudo /opt/mssql/bin/mssql-conf setup $ sudo yum update mssql-server
  9. 9. Container Available on DockerHub (Ubuntu based image) For RHEL based image, feel free to use my Docker file and build from scratch. $ sudo docker pull microsoft/mssql-server-linux:2017-latest $ sudo docker run -e 'ACCEPT_EULA=Y' -e 'SA_PASSWORD=<YourStrong!Passw0rd>' -p 1433:1433 --name sql1 -d microsoft/mssql-server-linux:2017-latest $ sudo docker exec -it sql1 "bash" # /opt/mssql-tools/bin/sqlcmd -S localhost -U SA -P '<YourNewStrong!Passw0rd>'
  10. 10. Tools (Linux) sqlcmd: command line interface. Intended to execute automate script. ◦ linux-2017 bcp: command line data import/export ◦ linux-2017 mssql-cli (preview): dialog query execute with CLI. ◦ Visual Studio Code Extension: Query with auto completion & execution. ◦ server-linux-2017 SQL Operation Studio: x-platform GUI management tool ◦
  11. 11. Linux & Windows Linux Windows Linux Windows SQL Server SQL Server
  12. 12. Troubleshoot
  13. 13. Service, Process, Directory /opt/mssql: binary owner:root /var/opt/mssql: database file. Log file owner:mssql mssql-server service
  14. 14. Demo SOSREPORT
  15. 15. sosreport PR is merged to upstream. ◦ Collecting following information ◦ mssql.conf ◦ Logs ◦ keytab when AD authentication enabled
  16. 16. Security
  17. 17. AD Authentication Default authentication: password AD authentication: password-less authentication from the AD-joined computer/user ◦ Requires Active Directory rather than LDAP ◦ Administrator can centralize user identity management in to AD. authentication?view=sql-server-linux-2017
  19. 19. Troubleshooting SPN configuration (setspn) in Active Directory ◦ Check with “Get-ADUser” and “setspn –l mssql” command klist command with Keytab file in SQL Server on RHEL server ◦ klist -e -k /var/opt/mssql/secrets/mssql.keytab Kerberos (id, kinit) in client RHEL ◦ klist shows the user credential. SSSD logs ◦ Check sosreport Debug logging ◦ Add /var/opt/mssql/logger.ini [Output:File] Type = File Filename = /var/opt/mssql/log/trace.log [Output:SecFile] Type = File Filename = /var/opt/mssql/log/security.log [Logger] Level = Debug Outputs = File [] Level = Debug Outputs = SecFile
  20. 20. High Availability
  21. 21. Cluster/HA options Failover Cluster Instance (FCI) ◦ Active/Standby ◦ Shared Storage: iSCSI, NFS, SMB ◦ RHEL HA Addon AlwaysOn Availability Groups ◦ Primary/Secondary (and more). Read Replica can be included. ◦ Local Storage ◦ RHEL HA Addon High Availability on kubernetes/OpenShift ◦ Will be released. ◦ Kubernetes/OpenShift integrated HA service
  22. 22. FCI RHEL RHEL Shared Disk (iSCSI, NFS, SMB) HA add on (pacemaker, pcs) HA add on (pacemaker, pcs) SQL Server (Active) SQL Server (Standby)
  23. 23. AlwaysOn Availability Group RHEL RHEL Local Disk HA add on (pacemaker, pcs, fence) HA add on (pacemaker, pcs, fence) SQL Server (Primary) SQL Server (Secondary) Local Disk VIP
  24. 24. STONITH Shoot The Other Node In The Head (STONITH) RHEL HA add on SQL Server failover RHEL HA add-on now supports STONITH (fence operation) on Azure.
  25. 25. References de:code 2018 DA06 SQL Server 管理者におくる SQL Server on Linux Tips SQL Server on Linux Technical support policy for Microsoft SQL Server Support Policies for RHEL High Availability Clusters mssql-server-ha GitHub repository Microsoft Build 2018 Enhancing DevOps with SQL Server on Linux + containers Microsoft Build 2018 Looking ahead with SQL Operations Studio SQL Server on Linux : Troubleshooting tips and tricks SQL Server on Linux Engineering Town Hall ◦ Please google and register. Then you can see videos on demand.