{"id":36858,"date":"2021-10-06T08:00:09","date_gmt":"2021-10-06T15:00:09","guid":{"rendered":""},"modified":"2024-04-19T10:45:19","modified_gmt":"2024-04-19T17:45:19","slug":"whats-new-with-sql-server-big-data-clusters-cu13-release","status":"publish","type":"post","link":"https:\/\/www.microsoft.com\/en-us\/sql-server\/blog\/2021\/10\/06\/whats-new-with-sql-server-big-data-clusters-cu13-release\/","title":{"rendered":"What\u2019s new with SQL Server Big Data Clusters\u2014CU13 Release"},"content":{"rendered":"<p><a target=\"_blank\" href=\"https:\/\/docs.microsoft.com\/en-us\/sql\/big-data-cluster\/big-data-cluster-overview?view=sql-server-ver15\" rel=\"noopener\">SQL Server Big Data Clusters (BDC)<\/a> is a capability brought to market as part of the SQL Server 2019 release. Big Data Clusters extends SQL Server\u2019s analytical capabilities beyond in-database processing of transactional and analytical workloads by uniting the SQL engine with Apache Spark and Apache Hadoop to create a single, secure, and unified data platform. It is available exclusively to run on Linux containers, orchestrated by Kubernetes, and can be deployed in multiple-cloud providers or on-premises.<\/p>\n<p>Today, we\u2019re proud to announce the release of the latest cumulative update, CU13, for SQL Server Big Data Clusters which includes important changes and capabilities:<\/p>\n<ul>\n<li>Hadoop Distributed File System (HDFS) distributed copy capabilities through azdata<\/li>\n<li>Apache Spark 3.1.2<\/li>\n<li><span class=\"TrackChangeTextInsertion TrackedChange SCXW129723355 BCX8\"><span class=\"TextRun SCXW129723355 BCX8\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW129723355 BCX8\">SQL Server Big Data Clusters runtime for Apache Spark<\/span><\/span><\/span><span class=\"TrackChangeTextInsertion TrackedChange SCXW129723355 BCX8\"><span class=\"TextRun SCXW129723355 BCX8\" lang=\"EN-US\" xml:lang=\"EN-US\" data-contrast=\"none\"><span class=\"NormalTextRun SCXW129723355 BCX8\"> release 2021.1<\/span><\/span><\/span><\/li>\n<li>Password rotation for Big Data Cluster\u2019s <a target=\"_blank\" href=\"https:\/\/docs.microsoft.com\/en-us\/sql\/big-data-cluster\/active-directory-objects?view=sql-server-ver15\" rel=\"noopener\">auto-generated Active Directory service accounts<\/a> during BDC deployment<\/li>\n<li>Enable Advanced Encryption Standard (AES) Optional parameter on the automatically generated AD accounts<\/li>\n<\/ul>\n<p>Major improvements in this update are highlighted below, along with resources for you to learn more and get started.<\/p>\n<h2>HDFS distributed copy capabilities through azdata<\/h2>\n<p>Hadoop HDFS DistCP is a command line tool that enables high-performant distributed data copy between HDFS clusters. On SQL Server Big Data Clusters CU13 we are surfacing the capability of distcp through the new <em>azdata bdc hdfs distcp<\/em> command to enable inter Big Data Clusters distributed data copy. This enables data migration scenarios between SQL Server Big Data Clusters; supporting both secure and non-secure cluster deployment configurations.<\/p>\n<p>For more information, see:<\/p>\n<ul>\n<li><a target=\"_blank\" href=\"https:\/\/docs.microsoft.com\/sql\/big-data-cluster\/distributed-data-copy-hdfs?view=sql-server-linux-ver15\" rel=\"noopener\">HDFS distributed data copy\u2014SQL Server Big Data Clusters<\/a><\/li>\n<li><a target=\"_blank\" href=\"https:\/\/docs.microsoft.com\/sql\/azdata\/reference\/reference-azdata-bdc-hdfs?view=sql-server-ver15#azdata-bdc-hdfs-distcp\" rel=\"noopener\">azdata bdc hdfs reference\u2014SQL Server Big Data Clusters<\/a><\/li>\n<\/ul>\n<h2>Apache Spark 3.1.2<\/h2>\n<p>Up to cumulative update 12, Big Data Clusters relied on the Apache Spark 2.4 line, which reached its <a target=\"_blank\" href=\"https:\/\/spark.apache.org\/versioning-policy.html\" rel=\"noopener\">end of life in May 2021<\/a>. Consistent with our continuous improvement commitment to the Big Data and Machine Learning capabilities of the Apache Spark engine, CU13 brings in the current release of Apache Spark, version 3.1.2.<\/p>\n<p>This new version of Apache Spark brings stellar performance benefits on big data processing workloads. Using the reference TCP-DS 10 TB workload in our tests we were able to reduce runtime from 4.19 hours to 2.96 hours, a 29.36 percent improvement achieved just by switching engines while using the same hardware and configuration profiles, no additional application optimizations. The improvement mean of individual query runtime is 36 percent.<\/p>\n<p><strong><img loading=\"lazy\" decoding=\"async\" class=\"attachment-large size-large webp-format\" src=\"https:\/\/www.microsoft.com\/en-us\/sql-server\/blog\/wp-content\/uploads\/2021\/09\/cu13_blog_chart-1024x520.webp\" alt=\"Individual TCP-DS 10TB query runtimes between Spark 2.4 and Spark 3.1. Chart shows that average runtimes across all queries are 30 lower, highlighting the benefits of using Spark 3.1 with CU13.\" width=\"1024\" height=\"520\" data-orig-srcset=\"https:\/\/www.microsoft.com\/en-us\/sql-server\/blog\/wp-content\/uploads\/2021\/09\/cu13_blog_chart-1024x520.png 1024w, https:\/\/www.microsoft.com\/en-us\/sql-server\/blog\/wp-content\/uploads\/2021\/09\/cu13_blog_chart-300x152.png 300w, https:\/\/www.microsoft.com\/en-us\/sql-server\/blog\/wp-content\/uploads\/2021\/09\/cu13_blog_chart-768x390.png 768w, https:\/\/www.microsoft.com\/en-us\/sql-server\/blog\/wp-content\/uploads\/2021\/09\/cu13_blog_chart-1536x781.png 1536w, https:\/\/www.microsoft.com\/en-us\/sql-server\/blog\/wp-content\/uploads\/2021\/09\/cu13_blog_chart-2048x1041.png 2048w, https:\/\/www.microsoft.com\/en-us\/sql-server\/blog\/wp-content\/uploads\/2021\/09\/cu13_blog_chart-330x168.png 330w, https:\/\/www.microsoft.com\/en-us\/sql-server\/blog\/wp-content\/uploads\/2021\/09\/cu13_blog_chart-800x407.png 800w, https:\/\/www.microsoft.com\/en-us\/sql-server\/blog\/wp-content\/uploads\/2021\/09\/cu13_blog_chart-400x203.png 400w\" data-orig-src=\"https:\/\/www.microsoft.com\/en-us\/sql-server\/blog\/wp-content\/uploads\/2021\/09\/cu13_blog_chart-1024x520.png\" \/><\/strong><\/p>\n<p>Spark 3 is a major release and as such, contains breaking changes. Following the same established best practice in the SQL Server universe, perform a side-by-side deployment of SQL Server Big Data Clusters to validate your current workload with Spark 3 before upgrading. You can leverage the new azdata HDFS distributed copy capability to have a subset of your data needed to validate this workload. For more information, see the following articles to help you assess your scenario before upgrading to the CU13 release:<\/p>\n<ul>\n<li><a target=\"_blank\" href=\"https:\/\/docs.microsoft.com\/sql\/big-data-cluster\/spark-3-upgrade?view=sql-server-linux-ver15\" rel=\"noopener\">Spark 3 upgrade guide\u2014SQL Server Big Data Clusters<\/a><\/li>\n<li><a target=\"_blank\" href=\"https:\/\/spark.apache.org\/docs\/latest\/core-migration-guide.html\" rel=\"noopener\">Migration guide: Spark Core\u2014Spark 3.1.2 documentation<\/a><\/li>\n<\/ul>\n<h2>SQL Server Big Data Clusters runtime for Apache Spark release 2021.1<\/h2>\n<p>With this release of SQL Server Big Data Clusters, we doubled down on our commitment of release cadence, binary compatibility, and consistency of experiences for data engineers and data scientists through the SQL Server Big Data Clusters runtime for Apache Spark initiative.<\/p>\n<p>The SQL Server Big Data Clusters runtime for Apache Spark is a consistent versioned block of programming language distributions, engine optimizations, core libraries, and packages for Apache Spark.<\/p>\n<p>Here is a summary of the SQL Server Big Data Clusters runtime for Apache Spark release 2021.1 shipped with SQL Server Big Data Clusters CU13:<\/p>\n<ul>\n<li>Apache Spark 3.1.2<\/li>\n<li>Scala 2.12 for Scala Spark<\/li>\n<li>Python 3.8 for PySpark<\/li>\n<li>Microsoft R Open 3.5.2 for SparkR and sparklyr<\/li>\n<\/ul>\n<p>For more information on all included packages and how to use it, see:<\/p>\n<ul>\n<li><a target=\"_blank\" href=\"https:\/\/docs.microsoft.com\/sql\/big-data-cluster\/release-notes-cumulative-update-13?view=sql-server-linux-ver15\" rel=\"noopener\">SQL Server Big Data Clusters CU13 release notes\u2014SQL Server Big Data Clusters<\/a><\/li>\n<li><a target=\"_blank\" href=\"https:\/\/docs.microsoft.com\/en-us\/sql\/big-data-cluster\/spark-install-packages?view=sql-server-ver15\" rel=\"noopener\">Spark library management\u2014SQL Server Big Data Clusters<\/a><\/li>\n<\/ul>\n<h2>Password rotation for Big Data Cluster\u2019s Active Directory service accounts<\/h2>\n<p>When a big data cluster is deployed with Active Directory integration for security, there are Active Directory (AD) accounts and groups that SQL Server creates during a big data cluster deployment, see <a target=\"_blank\" href=\"https:\/\/docs.microsoft.com\/en-us\/sql\/big-data-cluster\/release-notes-cumulative-updates-history?view=sql-server-ver15#cu11\" rel=\"noopener\">auto-generated active directory objects<\/a> for further information.<\/p>\n<p>When it comes to security-sensitive customers, it is usually required security reinforcement such as <a target=\"_blank\" href=\"https:\/\/docs.microsoft.com\/en-us\/microsoft-365\/admin\/manage\/set-password-expiration-policy?\" rel=\"noopener\">setting password expiration policies<\/a>, allowing the administrator to set user passwords to never expire or expire after a certain number of days. For SQL Server Big Data Cluster deployments it was previously required to manually rotate the password for those <a target=\"_blank\" href=\"https:\/\/docs.microsoft.com\/en-us\/sql\/big-data-cluster\/release-notes-cumulative-updates-history?view=sql-server-ver15#cu11\" rel=\"noopener\">auto-generated active directory objects<\/a>.<\/p>\n<p>With SQL Server Big Data Clusters CU13, we are now releasing the <em>azdata bdc rotate<\/em> command to rotate passwords for all auto-generated accounts except for the DSA account. In order to update the <a target=\"_blank\" href=\"https:\/\/docs.microsoft.com\/en-us\/sql\/big-data-cluster\/active-directory-prerequisites?view=sql-server-ver15#ad-account-for-bdc-domain-service-account\" rel=\"noopener\">DSA password<\/a> for SQL Server Big Data Clusters we are releasing a specific operation notebook.<\/p>\n<h2>Enable Advanced Encryption Standard (AES) on the automatically generated AD accounts<\/h2>\n<p>Today\u2019s enterprise environments are facing a lot more challenges than it used to be. Using secure and encrypted connections when authenticating with Kerberos will significantly lower the risk to encounter attacks such as <a target=\"_blank\" href=\"https:\/\/attack.mitre.org\/techniques\/T1558\/003\/\" rel=\"noopener\">Kerberoasting<\/a>; a type of attack targeting service accounts in Active Directory.\u00a0 Starting with SQL Server Big Data Clusters CU13, we\u2019re enabling the Advanced Encryption Standard (AES) \u00a0support on the auto-generated AD accounts by allowing users to set an optional boolean parameter in the BDC deployment profile to indicate this AD account supports Kerberos AES 128 bit and 256 bit encryptions.<\/p>\n<p>For more information, see:<\/p>\n<ul>\n<li><a target=\"_blank\" href=\"https:\/\/docs.microsoft.com\/sql\/big-data-cluster\/release-notes-cumulative-update-13?view=sql-server-linux-ver15\" rel=\"noopener\">SQL Server Big Data Clusters CU13 release notes\u2014SQL Server Big Data Clusters<\/a><\/li>\n<li><a target=\"_blank\" href=\"https:\/\/docs.microsoft.com\/en-us\/sql\/big-data-cluster\/cluster-manage-notebooks?view=sql-server-ver15\" rel=\"noopener\">Management notebooks for SQL Server Big Data Clusters\u2014SQL Server Big Data Clusters<\/a><\/li>\n<\/ul>\n<h2>Ready to learn more?<\/h2>\n<p>Check out the SQL Server Big Data Clusters CU13 <a target=\"_blank\" href=\"https:\/\/docs.microsoft.com\/en-us\/sql\/big-data-cluster\/release-notes-big-data-cluster?view=sql-server-ver15\" rel=\"noopener\">release notes<\/a> to learn more about all the improvements available with the latest update. For a technical deep-dive on Big Data Clusters, read the documentation and visit our <a target=\"_blank\" href=\"https:\/\/github.com\/microsoft\/sql-server-samples\/tree\/master\/samples\/features\/sql-big-data-cluster\" rel=\"noopener\">GitHub repository<\/a>.<\/p>\n<p>Follow the instructions on our <a target=\"_blank\" href=\"https:\/\/docs.microsoft.com\/en-us\/sql\/big-data-cluster\/big-data-cluster-overview?view=sql-server-ver15\" rel=\"noopener\">documentation page<\/a> to get started and deploy Big Data Clusters.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Today, we\u2019re proud to announce the release of the latest cumulative update, CU13, for SQL Server Big Data Clusters which includes important changes and capabilities.<\/p>\n","protected":false},"author":6110,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ep_exclude_from_search":false,"_classifai_error":"","_classifai_text_to_speech_error":"","footnotes":""},"post_tag":[],"product":[5227,2536],"content-type":[2448],"topic":[2451,2457,2469],"coauthors":[3618],"class_list":["post-36858","post","type-post","status-publish","format-standard","hentry","product-sql","product-sql-server-2019","content-type-updates","topic-big-data","topic-data-analytics","topic-high-performance-database","review-flag-1-1593580431-15","review-flag-2-1593580436-981","review-flag-3-1593580441-293","review-flag-4-1593580446-456","review-flag-5-1593580452-31","review-flag-8-1593580467-480","review-flag-lever-1593580264-545","review-flag-machi-1680214154-170","review-flag-never-1593580314-843","review-flag-new-1593580247-437"],"yoast_head":"<!-- This site is optimized with the Yoast SEO 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