MRS new version 3.3.1-LTS.1 is available in EU-DE and EU-NL regions

This new minor version upgrade includes the following new features and fixed bugs.

• The MemArtsCC component is now supported.
  MemArtsCC is a distributed caching service designed for systems of decoupled storage and compute. It adopts a lightweight architecture and is deployed in a compute cluster. It prefetches data from remote object storage to provide high-speed access to these data, accelerating execution of compute tasks.
• HBase supports table-level overload control.
  When HBase requests soar in a short period of time, the system is overloaded. As a result, the P99 latency of requests increases, which severely affects services that relay on quick responses. HBase table-level overload prevention is used to control request latency of core tables (core services).
• The Hive slow log function is enhanced.
  When the cluster load is heavy, tasks may run slowly after SQL statements are submitted due to many reasons, and the cause cannot be quickly located based on logs. To solve this problem, HiveServer logs now contains logs generated in important phases, such as SQL compilation, execution, and Yarn task submission and runtime.
• Hudi TTL is supported.
  Hudi data in a partition can be aged and deleted based on the partition TTL.
• Hudi supports hidden partitioning.
  The Hudi uses hidden partitioning to implicitly convert the original columns in a table and generate partition column values without adding columns. This allows you to flexibly create partition levels and partition directories that improve the query pruning efficiency and query performance.

Improved functionality:

The client can be directly downloaded to a remote node.

Before:

1. Log in to FusionInsight Manager.
2. In the upper right corner of the home page, click Download Client.
3. In the Download Cluster Client dialog box, set the following parameters:
   1. Select Client Type: Select Complete Client or Configuration Files Only as required.
   2. Enter a path to Save to Path.
4. Click OK to download the client.

Now:

1. Log in to FusionInsight Manager.
2. In the upper right corner of the home page, click Download Client.
3. In the Download Cluster Client dialog box, set the following parameters:
   1. Select Client Type: Select Complete Client or Configuration Files Only as required.
   2. Select Download Path: Select Server, Browser, or Remote Node as you need.
4. Click OK to download the client.

Further information can be found in the MapReduce Service (MRS) area of the Help Center.