Merge pull request #19361 from MicrosoftDocs/master

5/17 AM Publish

Author: huypub

docs/linux/quickstart-install-connect-docker.md

@@ -2,8 +2,8 @@
 title: "Docker: Install containers for SQL Server on Linux"
 description: This quickstart shows how to use Docker to run the SQL Server 2017 and 2019 container images. You then create and query a database with sqlcmd.
 ms.custom: seo-lt-2019, contperf-fy21q1
-author: vin-yu 
-ms.author: vinsonyu
+author: amvin87
+ms.author: amitkh
 ms.reviewer: vanto
 ms.date: 09/07/2020
 ms.topic: quickstart

docs/linux/sql-server-linux-active-directory-auth-overview.md

@@ -3,8 +3,8 @@ title: Active Directory authentication for SQL Server on Linux
 titleSuffix: SQL Server
 description: This article provides an overview of Active Directory Authentication for SQL Server on Linux.
 ms.date: 04/01/2019
-author: Dylan-MSFT
-ms.author: dygray
+author: amvin87
+ms.author: amitkh
 ms.reviewer: vanto
 ms.topic: conceptual
 ms.prod: sql

docs/linux/sql-server-linux-active-directory-authentication.md

@@ -2,8 +2,8 @@
 title: "Tutorial: Use AD authentication for SQL Server on Linux"
 titleSuffix: SQL Server
 description: This tutorial provides the configuration steps for Active Directory (AD) authentication for SQL Server on Linux.
-author: Dylan-MSFT
-ms.author: dygray
+author: amvin87
+ms.author: amitkh
 ms.reviewer: vanto
 ms.date: 12/18/2019
 ms.topic: tutorial

docs/linux/sql-server-linux-docker-container-configure.md

@@ -1,8 +1,8 @@
 ---
 title: Configure and customize SQL Server Docker containers
 description: Understand the different ways to customize SQL Server Docker Containers and how you can configure it based on your requirement
-author: vin-yu
-ms.author: vinsonyu
+author: amvin87
+ms.author: amitkh
 ms.reviewer: vanto
 ms.custom: contperf-fy21q1
 ms.date: 03/22/2021

docs/linux/sql-server-linux-docker-container-deployment.md

@@ -1,8 +1,8 @@
 ---
 title: Deploy and connect to SQL Server Docker containers
 description: Explore how SQL Server can be deployed on Docker containers and learn about various tools to connect to SQL Server from inside and outside the container
-author: vin-yu
-ms.author: vinsonyu
+author: amvin87
+ms.author: amitkh
 ms.reviewer: vanto
 ms.custom: contperf-fy21q1
 ms.date: 09/07/2020

docs/linux/sql-server-linux-docker-container-security.md

@@ -1,8 +1,8 @@
 ---
 title: Secure SQL Server Docker containers
 description: Understand the different ways to secure SQL Server Docker containers and how you can run containers as different non-root user on the host
-author: vin-yu
-ms.author: vinsonyu
+author: amvin87
+ms.author: amitkh
 ms.reviewer: vanto
 ms.custom: contperf-fy21q1
 ms.date: 09/07/2020
@@ -121,9 +121,10 @@ This can be the default non-root user, or any other non-root user you’d like t
 ```bash
 chown -R 10001:0 <database file dir>
 ```
+
 ## Encrypting connections to SQL Server Linux Containers
 
-To encrypt connections to SQL Server Linux containers, you will need a certificate the requirements of which are documented [here].
+To encrypt connections to SQL Server Linux containers, you will need a certificate with the following [requirements](sql-server-linux-encrypted-connections.md).
 
 Below is an example of how the connection can be encrypted to SQL Server Linux Containers. Here we use a Self-Signed Certificate, this should not be used for production scenarios for such environments, you should use CA certificates.
 
@@ -170,11 +171,7 @@ Below is an example of how the connection can be encrypted to SQL Server Linux C
     > [!NOTE]
     > If you are using RHEL 8 and above you can also use the \'podman run\' command instead of \'docker run\'. 
 
-Follow the \"Register the certificate on your client machine\" and \"Example connection strings\" sections documented [here][1] to start encrypting connections to SQL Server on Linux containers.
-
-  [Encrypting connection to SQL Server Linux]: https://docs.microsoft.com/sql/linux/sql-server-linux-encrypted-connections?view=sql-server-ver15&preserve-view=true
-  [here]: https://docs.microsoft.com/sql/linux/sql-server-linux-encrypted-connections?view=sql-server-ver15&preserve-view=true#requirements-for-certificates
-  [1]: https://docs.microsoft.com/sql/linux/sql-server-linux-encrypted-connections?view=sql-server-ver15&preserve-view=true#client-initiated-encryption
+Follow the \"Register the certificate on your client machine\" and \"Example connection strings\" sections documented in [Client Initiated Encryption](sql-server-linux-encrypted-connections.md#client-initiated-encryption) to start encrypting connections to SQL Server on Linux containers.
 
 ## Next steps
 

docs/linux/sql-server-linux-docker-container-troubleshooting.md

@@ -1,8 +1,8 @@
 ---
 title: Troubleshooting SQL Server Docker containers
 description: Explore the different troubleshooting techniques that you can use to resolve common errors that are seen when using Linux Docker containers with SQL Server images
-author: vin-yu
-ms.author: vinsonyu
+author: amvin87
+ms.author: amitkh
 ms.reviewer: vanto
 ms.custom: contperf-fy21q1
 ms.date: 09/07/2020

docs/linux/sql-server-linux-encrypted-connections.md

@@ -2,8 +2,8 @@
 title: Encrypting Connections to SQL Server on Linux
 description: SQL Server on Linux uses TLS to encrypt data that's transmitted across a network between a client application and an instance of SQL Server.
 ms.date: 06/29/2020
-author: vin-yu 
-ms.author: vinsonyu
+author: amvin87
+ms.author: amitkh
 ms.reviewer: vanto
 ms.topic: conceptual
 ms.prod: sql

docs/relational-databases/polybase/polybase-linux-setup.md

@@ -5,7 +5,7 @@ description: Learn how to install SQL Server PolyBase on Linux. PolyBase enables
 author: MikeRayMSFT
 ms.author: mikeray
 ms.reviewer: dakryze
-ms.date: 8/18/2020
+ms.date: 05/12/2021
 ms.topic: conceptual
 ms.prod: sql
 ms.technology: linux
@@ -33,38 +33,52 @@ Install PolyBase for your operating system:
 
 ## <a name="RHEL"></a>Install on RHEL
 
-Use the following command to install the `mssql-server-polybase` on Red Hat Enterprise Linux. 
+1. Download the Microsoft Red Hat repository configuration file.
 
-```bash
-sudo yum install -y mssql-server-polybase
-```
+   For RHEL7:
 
-You will be prompted to restart the SQL Server instance. Use the following command to do so.
+   ```console
+   sudo curl -o /etc/yum.repos.d/msprod.repo https://packages.microsoft.com/config/rhel/7/prod.repo
+   ```
 
-```bash
-sudo systemctl restart mssql-server
-```
+   For RHEL8:
 
->[!NOTE]
->After installation, you must [enable the PolyBase feature](#enable).
+   ```console
+   sudo curl -o /etc/yum.repos.d/msprod.repo https://packages.microsoft.com/config/rhel/8/prod.repo
+   ```
 
-Use the following command to install the `mssql-server-polybase-hadoop`. 
+1. Use the following command to install the `mssql-server-polybase` on Red Hat Enterprise Linux. 
 
-```bash
-sudo yum install -y mssql-server-polybase-hadoop
-```
+   ```console
+   sudo yum install -y mssql-server-polybase
+   ```
 
-The PolyBase Hadoop package has dependencies on the following packages:
-- `mssql-server`
-- `mssql-server-polybase`
-- `mssql-server-extensibility`
-- `mssql-zulu-jre-11`. 
+1. You will be prompted to restart the SQL Server instance. Use the following command to do so.
 
-Installation prompts to restart `launchpadd`. Use the following command to do so.
+   ```console
+   sudo systemctl restart mssql-server
+   ```
 
-```bash
-sudo systemctl restart mssql-launchpadd
-```
+   >[!NOTE]
+   >After installation, you must [enable the PolyBase feature](#enable).
+
+   Use the following command to install the `mssql-server-polybase-hadoop`. 
+
+1. ```console
+   sudo yum install -y mssql-server-polybase-hadoop
+   ```
+
+   The PolyBase Hadoop package has dependencies on the following packages:
+   - `mssql-server`
+   - `mssql-server-polybase`
+   - `mssql-server-extensibility`
+   - `mssql-zulu-jre-11`. 
+
+1. Installation prompts to restart `launchpadd`. Use the following command to do so.
+
+   ```console
+   sudo systemctl restart mssql-launchpadd
+   ```
 
 >[!NOTE]
 >After installation, you must [set the Hadoop connectivity level](../../database-engine/configure-windows/polybase-connectivity-configuration-transact-sql.md#c-set-hadoop-connectivity).
@@ -73,64 +87,91 @@ If you need an offline installation, locate the PolyBase package download in the
 
 ## <a name="ubuntu"></a>Install on Ubuntu
 
-Use the following command to install the `mssql-server-polybase` on Ubuntu. 
+1. Register the Microsoft Ubuntu repository.
+   
+   For Ubuntu 16.04:
 
-```bash
-sudo apt-get install mssql-server-polybase
-```
+   ```console
+   curl https://packages.microsoft.com/config/ubuntu/16.04/prod.list | sudo tee /etc/apt/sources.list.d/msprod.list
+   ```
 
-You will be prompted to restart the SQL Server instance. Use the following command to do so.
+   For Ubuntu 18.04:
 
-```bash
-sudo systemctl restart mssql-server
-```
+   ```console
+   curl https://packages.microsoft.com/config/ubuntu/18.04/prod.list | sudo tee /etc/apt/sources.list.d/msprod.list
+   ```
 
->[!NOTE]
->After installation, you must [enable the PolyBase feature](#enable).
+   For Ubuntu 20.04:
 
-If you need an offline installation, locate the PolyBase package download in the [Release notes](../../linux/sql-server-linux-release-notes.md). Then use the same offline installation steps described in the article [Install SQL Server](../../linux/sql-server-linux-setup.md#offline).
+   ```console
+   curl https://packages.microsoft.com/config/ubuntu/20.04/prod.list | sudo tee /etc/apt/sources.list.d/msprod.list
+   ```
 
-Use the following command to install the `mssql-server-polybase-hadoop`. 
+2. Use the following command to install the `mssql-server-polybase` on Ubuntu. 
 
-```bash
-sudo apt-get install mssql-server-polybase-hadoop
-```
+   ```console
+   sudo apt-get install mssql-server-polybase
+   ```
 
-The PolyBase Hadoop package has dependencies on the following packages:
-- `mssql-server`
-- `mssql-server-polybase`
-- `mssql-server-extensibility`
-- `mssql-zulu-jre-11`. 
+3. When prompted, restart the SQL Server instance.
 
-Installation prompts to restart `launchpadd`. Use the following command to do so.
+   ```console
+   sudo systemctl restart mssql-server
+   ```
 
-```bash
-sudo systemctl restart mssql-launchpadd
-```
+   >[!NOTE]
+   >After installation, you must [enable the PolyBase feature](#enable).
+
+   If you need an offline installation, locate the PolyBase package download in the [Release notes](../../linux/sql-server-linux-release-notes.md). Then use the same offline installation steps described in the article [Install SQL Server](../../linux/sql-server-linux-setup.md#offline).
+
+4. Use the following command to install the `mssql-server-polybase-hadoop`. 
+
+   ```console
+   sudo apt-get install mssql-server-polybase-hadoop
+   ```
+
+   The PolyBase Hadoop package has dependencies on the following packages:
+
+   - `mssql-server`
+   - `mssql-server-polybase`
+   - `mssql-server-extensibility`
+   - `mssql-zulu-jre-11`
+
+5. Installation prompts to restart `launchpadd`. Use the following command to do so.
+
+   ```console
+   sudo systemctl restart mssql-launchpadd
+   ```
 
 >[!NOTE]
 >After installation, you must [set the Hadoop connectivity level](../../relational-databases/polybase/polybase-configure-hadoop.md#configure-hadoop-connectivity).
 
 ## <a name="SLES"></a>Install on SLES
 
-Use the following commands to install the `mssql-server-polybase` on SUSE Linux Enterprise Server. 
+1. Add the Microsoft SQL Server repository to Zypper.
 
-```bash
-sudo zypper install mssql-server-polybase
-```
+   ```console
+   sudo zypper addrepo -fc https://packages.microsoft.com/config/sles/12/prod.repo 
+   sudo zypper --gpg-auto-import-keys refresh
+   ```
 
-You will be prompted to restart the SQL Server instance. Use the following command to do so.
+1. Use the following commands to install the `mssql-server-polybase` on SUSE Linux Enterprise Server. 
 
-```bash
-sudo systemctl restart mssql-server
-```
+   ```console
+   sudo zypper install mssql-server-polybase
+   ```
+
+   You will be prompted to restart the SQL Server instance. Use the following command to do so.
+
+1. ```console
+   sudo systemctl restart mssql-server
+   ```
 
 >[!NOTE]
 >After installation, you must [enable the PolyBase feature](#enable).
 
 If you need an offline installation, locate the PolyBase package download in the [Release notes](../../linux/sql-server-linux-release-notes.md). Then use the same offline installation steps described in the article [Install SQL Server](../../linux/sql-server-linux-setup.md#offline).
 
-
 ## <a name="enable"></a> Enable PolyBase
 
 After installation, PolyBase must be enabled to access its features. Connect to the installed SQL Server instance and use the following Transact-SQL command to enable.
@@ -146,7 +187,7 @@ If you already have `mssql-server-polybase` installed, you can update to the lat
 
 ### RHEL
 
-```bash
+```console
 sudo yum remove -y mssql-server-polybase-hadoop
 sudo yum remove -y mssql-server-polybase
 sudo yum check-update
@@ -156,13 +197,13 @@ sudo yum install -y mssql-server-polybase-hadoop
 
 You will be prompted to restart the SQL Server instance. Use the following command to do so.
 
-```
+```console
 sudo systemctl restart mssql-server
 ```
 
 ### Ubuntu
 
-```bash
+```console
 sudo apt-get remove mssql-server-polybase-hadoop
 sudo apt-get remove mssql-server-polybase
 sudo apt-get update 
@@ -172,21 +213,21 @@ sudo apt-get remove mssql-server-polybase-hadoop
 
 You will be prompted to restart the SQL Server instance. Use the following command to do so.
 
-```
+```console
 sudo systemctl restart mssql-server
 ```
 
 ### SLES
 
-```bash
+```console
 sudo zypper remove mssql-server-polybase
 sudo zypper refresh
 sudo zypper install mssql-server-polybase
 ```
 
 You will be prompted to restart the SQL Server instance. Use the following command to do so.
 
-```
+```console
 sudo systemctl restart mssql-server
 ```
 

docs/relational-databases/system-dynamic-management-views/sys-dm-os-spinlock-stats-transact-sql.md

@@ -84,7 +84,7 @@ GO
 |ASYNCSTATSLIST|Internal use only.|
 |BACKUP|Internal use only.|
 |BACKUP_COPY_CONTEXT|Internal use only.|
-|BACKUP_CTX|Internal use only.|
+|BACKUP_CTX|Protects access to list of pages involved in I/O while a backup is happening on that particular database. High spins could be observed when long checkpoints or lazwriter activity happen during backup operations. You can obtain relief using one of the following methods: <br /><br /> - a) Use [indirect checkpoint](../../relational-databases/logs/database-checkpoints-sql-server.md#IndirectChkpt) instead of [automatic checkpoint](../../relational-databases/logs/database-checkpoints-sql-server.md#AutomaticChkpt) <br /><br /> - b) Minimize lazywriter activity by properly allocating memory required for this instance <br /><br /> - c) Avoid too many concurrent backups for databases on the instance|
 |BASE_XACT_HASH|Internal use only.|
 |BLOCKER_ENUM|Internal use only.|
 |BPREPARTITION|Internal use only.|