GridGain 9.0.6 Release Notes
GridGain 9.0.6 is a stability and performance release that adds a license metrics exporter.
Overview
GridGain 9.0.6 is a release dedicated to stability and performance.
New Features
License Metrics
In this release, a new license metrics exporter was added. You can use it to check the details of the current license.
Improvements and Fixed Issues
IGN-25466
General
Linux and Windows environment files are now consistent.
IGN-25409
General
Lease duration is now configurable in cluster configuration.
IGN-25362
Cluster Storage Engine
Improved stability of transactions that are run in parallel.
IGN-25351
SQL
SQL AVG function now returns DECIMAL data type for exact numeric types and DOUBLE data type for approximate numeric types.
IGN-24870
CLI Tool
Improved SQL script results processing in CLI tool.
IGN-24056
Platforms and Clients
.NET: Fixed decimal cast precision loss in LINQ.
GG-40548
Cluster SQL Engine
Updated awssdk to version 2.25.21.
GG-40530
CLI Tool
You can now specify several source cluster addresses for DCR.
GG-40434
Cluster Data Snapshots and Recovery
Fixed an issue with restoring indexes when snapshot is restored.
GG-39823
Licenses
Added metrics for licenses.
GG-39752
CLI Tool
COPY INTO command now properly handles invalid parameters.
Known Limitations
Delay on DDL Requests
DDL requests, such as CREATE TABLE, take a few seconds each to complete. Because of that, large database initialization scripts may take longer than expected. This will be addressed in an upcoming release.
Performance of GridGain 8 Applications
Some scenarios may see lower performance when moving to GridGain 9. This is a temporary limitation, and the performance in these scenarios will be improved in upcoming versions.
High-Availability with Two Data Copies
When a partition loses majority of its copies, it becomes unavailable. This behavior is required for split-brain protection. Because of this, in a distribution zone with 2 data replicas, losing one node may lead to partial unavailability.
To achieve both split-brain protection and full availability with one node down, use 3 or more replicas.
Upcoming versions will add a high-availability mode that support full availability with one node down when using 2 replicas.
Data Center Replication with Multiple Data Centers
Complex Data Center Replication topologies (for example, the ones involving cycles) of 3 or more data centers are not supported. This will be addressed in an upcoming release.
GridGain 8 Features
The following features of GridGain 8 are not available in this version, and will be added in upcoming versions:
Rack-Awareness
SQL Offloading
Tracing
Service Grid
Write-Behind Caching
We Value Your Feedback
Your comments and suggestions are always welcome. You can reach us here: http://support.gridgain.com/.
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