GridGain Developers Hub

GridGain 8.8.28 Release Notes

GridGain 8.8.28 is a stability release dedicated to fixing vulnerabilities and improving usability. No major new features are added in this release.

New Features

Improved Thin Client Endpoint Discovery

In this release, thin client discovery process was improved. A new EnableClusterDiscovery configuration property was added to Java and .NET thin clients. When this property is enabled, thin clients will discover all server nodes automatically and maintain a list of servers at all times. This makes it much easier to run thin clients in cloud environments or Kubernetes.

Improvements and Fixed Issues

Community Edition Changes

Issue ID Category Description

GG-36507

Platforms & Thin Clients

.NET: Added IgniteClientConfiguration.EnableClusterDiscovery configuration property that can be used to enable or disable discovery.

GG-36503

Platforms & Thin Clients

Java thin: Initial connection and SSL handshake process now respects the configured timeout.

GG-36494

Cluster SQL Engine

DB2 did not work as external storage for writing if table had several columns in primary key.

GG-36493

Cluster Storage Engine

Transaction records are no longer logged to WAL if no persistent caches participate in the transaction.

GG-36488

Cluster Security

Updated org.apache.rat library from 0.12 to 0.14.

GG-36472

Platforms & Thin Clients

Java thin: Added ClientConfiguration.clusterDiscoveryEnabled configuration property that can be used to enable or disable discovery.

GG-36467

Cluster SQL Engine

Fixed a rare concurrency exception that happened during SQL index scan.

GG-36435

Cluster Storage Engine

Fixed a possible exception during SQL index defragmentation if query parallelism is more than 1.

GG-36413

Cluster Storage Engine

Fixed a rare issue caused by restarting of a node after a checkpoint without first rebuilding indexes.

GG-36347

Cluster SQL Engine

Fixed an issue that caused degraded performance for SQL GROUP BY queries.

GG-36301

Platforms & Thin Clients

Java thin client: Fixed a potential pending requests race condition on close.

GG-36242

Platforms & Thin Clients

Java thin: Added endpoints discovery feature.

GG-36231

Cluster Storage Engine

Added a way to change checkpoint frequency at runtime.

GG-36202

Cluster SQL Engine

It is no longer possible to create caches with the same index and schema names when using key-value api.

GG-35464

Cluster Security

Added IP address of thin clients to AuthenticationEvent log output.

GG-33516

Cluster Control Script

Added --all mode to reset lost partition command.

Enterprise Edition Changes

Issue ID Category Description

GG-36485

Cluster Security

Updated Spring version from 5.2.22.RELEASE to 5.2.23.RELEASE.

GG-35595

Cluster Data Replication

Improved data center replication performance during batching process.

Ultimate Edition Changes

Issue ID Category Description

GG-36311

Cluster Data Snapshots and Recovery

Snapshot no longer fails if the hard drive runs out of space during snapshot compression process. Data that did not fit on the drive during compression will be left uncompressed.

Installation and Upgrade Information

See the Rolling Upgrades page for information about how to perform automated upgrades and for details about version compatibility.

Older GridGain Versions Compatibility

Below is a list of versions that are compatible with the current version. You can rolling-upgrade from any of those. Compatibility with other versions is not guaranteed. If you are on a version that is not listed, contact GridGain for information on upgrade options.

8.7.29-p1, 8.7.42-p2, 8.8.2-p1, 8.8.4-p2, 8.8.8-p1, 8.8.9-p1, 8.8.13-p2, 8.8.16-p2, 8.8.18-p1, 8.7.22, 8.7.28, 8.7.32, 8.7.34, 8.7.38, 8.8.1, 8.8.2, 8.8.3, 8.8.4, 8.8.5, 8.8.6, 8.8.7, 8.8.8, 8.8.9, 8.8.10, 8.8.11, 8.8.12, 8.8.13, 8.8.14, 8.8.15, 8.8.16, 8.8.17, 8.8.18, 8.8.19, 8.8.20, 8.8.21, 8.8.22, 8.8.23, 8.8.23-p1, 8.8.24, 8.8.25, 8.8.25-p1, 8.8.26, 8.8.27

Apache Ignite Versions Compatibility

Below is a list of versions that are tested for basic compatibility with the current version. If you are on a version that is not listed, contact GridGain for information on upgrade options.

2.11.1, 2.12.0, 2.13.0, 2.14.0

Known Limitations

Jetty Configuration Incompatibility in GridGain 8.7.21 and Later

If you are upgrading from version 8.7.20 or earlier, consider an incompatibility issue related to Jetty configuration introduced in GridGain 8.7.21.

Your setup may be affected if:

  • You use the ignite-rest-http module (e.g. to connect to GridGain Web Console)

  • You have a custom Jetty configuration that enables SSL for REST

  • Your Jetty configuration uses the org.eclipse.jetty.util.ssl.SslContextFactory class

  • The keystore specified in the Jetty configuration contains both the CA certificate and the private certificate

In this case, after starting a new version, an exception is thrown with an error message similar to the following:

java.lang.IllegalStateException: KeyStores with multiple certificates are not supported on the base class
org.eclipse.jetty.util.ssl.SslContextFactory. (Use org.eclipse.jetty.util.ssl.SslContextFactory$Server
or org.eclipse.jetty.util.ssl.SslContextFactory$Client instead)

To workaround this issue, alter the Jetty configuration to use org.eclipse.jetty.util.ssl.SslContextFactory$Server or org.eclipse.jetty.util.ssl.SslContextFactory$Client. See the configuration example at the Client Certificate Authentication page.

Default rebalanceThreadPoolSize in GridGain 8.7.26 and Later

In GridGain 8.7.26, the default value of the property IgniteConfiguration.rebalanceThreadPoolSize changed from 1 to min(4, number of CPU / 4). It may cause a compatibility issue under the following conditions:

  • When a Rolling Upgrade is performed

  • The upgrade is performed from 8.5.7 version (or earlier) to 8.5.x or from 8.7.3 (or earlier) to 8.7.x

  • The server nodes have at least 8 CPU cores

  • The nodes configuration does not have the property IgniteConfiguration.rebalanceThreadPoolSize, so the default value is used

In this case, an exception is thrown with an error message similar to the following:

сlass org.apache.ignite.IgniteException: Rebalance configuration mismatch (fix configuration or set -DIGNITE_SKIP_CONFIGURATION_CONSISTENCY_CHECK=true system property).
Different values of such parameter may lead to rebalance process instability and hanging.  [rmtNodeId=5fc58fb7-209d-489a-8034-0127a81abed6, locRebalanceThreadPoolSize = 4, rmtRebalanceThreadPoolSize = 1]

To workaround this issue, change the configuration of the server nodes to rebalanceThreadPoolSize=1 so that it matches the previous default configuration. For example:

<bean class="org.apache.ignite.configuration.IgniteConfiguration">
    <property name="rebalanceThreadPoolSize" value="1"/>

    <!-- The rest of the configuration goes here -->
</bean>

Jetty Doesn’t Accept Incorrect Configuration in GridGain 8.7.31 and Later

In GridGain 8.7.31 Jetty was upgraded to 9.4.33. Starting that version, Jetty has more strict validation of the provided configuration files. Before that version, an incorrectly spelled property in the configuration file had no effect. Starting this version, errors in the configuration will lead to an error on start.

Your setup may be affected if:

  • You use the ignite-rest-http module (e.g. to connect to GridGain Web Console)

  • You have a custom Jetty configuration for REST

  • The custom configuration has errors in it

You will need to fix the custom Jetty configuration before upgrading.

ignite.sh No Longer Enables Remote JMX by Default in GridGain 8.7.31 and Later

Starting from 8.7.31 version, GridGain no longer attempts to automatically enable the remote JMX. Default settings are known to cause issues if customized (for example, secure the connection). Also, in most cases, remote JMX is not required since many tools use local JMX connections (not using TCP).

Your setup may be affected if:

  • You start GridGain nodes via ignite.sh script

  • You connect to GridGain nodes' JMX interface remotely over TCP using the default configuration

To continue using remote JMX, you need to manually specify the required JMX settings. Please see the example below. Note that you don’t need remote JMX if you use a local connection, such as connecting JConsole to a GridGain process on the same host.

export JVM_OPTS="-Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=33333 \
    -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false"

bin/ignite.sh

.NET: GridGain Nuget Package Misses GridGain.Ignite Jars in 8.8.17 and Later

Add the GridGain.Ignite dependency to your project, so that jars from it are included.

.NET: Docker Images Need Additional Configuration

To run .NET SDK commands, install the .NET SDK. For more details, click here.

We Value Your Feedback

Your comments and suggestions are always welcome. You can reach us here: https://gridgain.freshdesk.com/support/login or docs@gridgain.com

Please visit the documentation for more information.

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Last updated on Apr 18, 2024