Stage OSS reference article

Author: MikeRayMSFT

docs/big-data-cluster/reference-open-source-software.md

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+---
+title: Open-source software reference
+titleSuffix: SQL Server Big Data Clusters
+description: Identify open-source software and version used in SQL Server Big Data Clusters.
+author: mihaelablendea 
+ms.author: mihaelab
+ms.reviewer: mikeray
+ms.date: 2/08/2021
+ms.topic: reference
+ms.prod: sql
+ms.technology: big-data-cluster
+---
+
+# Open-source software reference
+
+[!INCLUDE [sqlserver2019](../includes/applies-to-version/sqlserver2019.md)]
+
+A SQL Server Big Data Cluster includes some containers that are developed by open-source projects. This article identifies specific projects, and versions of these containers.
+
+## Project list
+
+The table below shows the open-source projects in use as of [!INCLUDE [sssql19-md](../includes/sssql19-md.md)] CU8 and prior, and CU9 and later. 
+
+| Project | CU8 and prior | Beginning with CU9 |
+|--|--|--|
+| [Fluent Bit](https://docs.fluentbit.io/manual/about/what-is-fluent-bit) | 1.1.1 | 1.6.3 |
+| [Telegraf](https://docs.influxdata.com/telegraf/) | 1.10.3 | 1.16.1 |
+| [Kibana](https://www.elastic.co/kibana) | 7.0.1 | 7.9.1 |
+| [Grafana](https://grafana.com/) | 6.3.6 | 7.3.1 |
+| [Elasticsearch](https://www.elastic.co/) | 7.0.1 | 7.9.1 |
+| [InfluxDB](https://www.influxdata.com) | 1.7.6 | 1.8.3 |
+| [collectd](https://collectd.org/) | 5.8.1 | 5.12 |
+| [Openresty (Nginx)](https://openresty.org/) | 1.15.8 | 1.17.8.2 |
+| [opendistro-elasticsearch-security](https://www.elastic.co/what-is/elastic-stack-security) | 1.0.0.1 | 1.10.1.0 |
+| [Knox](https://knox.apache.org/) |1.2.0|1.4.0|
+| [Livy](https://livy.apache.org/) |0.6.0|0.7.0|
+| [Spark](configure-spark-hdfs.md) |2.4.6+|3.0.1|
+| Core Hadoop <br/>- [HDFS DataNode](concept-storage-pool.md)<br/>[HDFS NameNode](https://cwiki.apache.org/confluence/display/HADOOP2/NameNode) |3.1.3+|3.3.0|
+| [ZooKeeper](https://kubernetes.io/docs/tutorials/stateful-application/zookeeper/) |3.5.8|3.6.2
+| [Kafka](https://kafka.apache.org/) |2.6|2.6.0|
+| [Hive (Metastore)](https://hive.apache.org/) |2.3.7|2.3.7<br/>3.0.0 (standalone)<br/>3.1.2 (hive)|
+
+## Next steps
+
+Review [Resources deployed with Big Data Cluster](concept-architecture-pods.md).