GridGain Developers Hub

GridGain 8.7.29 Release Notes

New Features

Checking snapshots on a schedule

Added ability to schedule snapshot checks using Snapshot Utility

Improvements and Fixed Issues

Community Edition Changes

GG-30975

Control Center Agent

Fixed a bug preventing the GridGain cluster activation/deactivation (8.7.27 and higher) via Control Center 2020.08.00.

GG-31084

Control Center Agent

Fixed an error that led to “Connection closed” message when multiple Control Center URIs are configured.

GG-31085

Cluster SQL Engine

Fixed an issue causing errors on arithmetic operations that use DATE, TIME, and TIMESTAMP types.

GG-30757

Cluster Storage Engine

Fixed an issue where compute jobs could not load user-defined classes through peer class loading.

GG-29269

Cluster Storage Engine

Fixed an issue where the cache size could return a wrong value when TTL is enabled.

GG-30931

Platforms & Thin Clients

Added support of using CMake for building Ignite C++ on Windows platform.

GG-31018

Cluster Control Script

Fixed an issue with the 'help' command for control command line utility.

GG-28222

Platforms & Thin Clients

Added shuffling of remote IP addresses for ODBC and C++ thin clients that can be useful for cases when DNS-level balancing is used.

GG-30825

Cluster SQL Engine

Fixed the JDBC property names reported to external tools.

GG-30492

Cluster SQL Engine

Disabled optional usage of ICU4J in H2 library which prevented it from working on recent JVM1.8 patch levels such as u262.

Ultimate Edition Changes

GG-24792

Cluster Snapshot Utility

Added ability to schedule snapshot checks using Snapshot Utility.

Installation and Upgrade Information

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

8.5.3, 8.5.5, 8.5.6, 8.5.7, 8.5.8, 8.5.8-p6, 8.5.9, 8.5.10, 8.5.11, 8.5.12, 8.5.13, 8.5.14, 8.5.15, 8.5.16, 8.5.17, 8.5.18, 8.5.19, 8.5.20, 8.5.22, 8.5.23, 8.5.24, 8.7.2, 8.7.2-p12, 8.7.2-p13, 8.7.3, 8.7.4, 8.7.5, 8.7.6, 8.7.7, 8.7.8, 8.7.9, 8.7.10, 8.7.11, 8.7.12, 8.7.13, 8.7.14, 8.7.15, 8.7.16, 8.7.17, 8.7.18, 8.7.19, 8.7.19-p1, 8.7.20, 8.7.21, 8.7.22, 8.7.23, 8.7.24, 8.7.25, 8.7.26, 8.7.27, 8.7.28

Known Limitations

Jetty configuration incompatibility in GridGain 8.7.21 and later

If you are upgrading from version 8.7.20 or earlier, you must take into account an incompatibility related to Jetty configuration, which was introduced in GridGain 8.7.21.

Your setup may be affected if:

  • You’re using 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 the new version, you’ll see an error similar to:

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, you need to alter the Jetty configuration to use org.eclipse.jetty.util.ssl.SslContextFactory$Server or org.eclipse.jetty.util.ssl.SslContextFactory$Client. For a configuration example, see Client Certificate Authentication.

Default rebalanceThreadPoolSize in GridGain 8.7.26 and later

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

  • A Rolling Upgrade is being performed

  • The upgrade is performed from a version 8.5.7 or earlier for 8.5.x, or 8.7.3 or earlier for 8.7.x

  • The server nodes have at least 8 CPU cores

  • The nodes configuration don’t have the property IgniteConfiguration.rebalanceThreadPoolSize set (i.e. the default value is used)

In this case, you’ll see an error similar to

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, you need to change the configuration of the server nodes to set rebalanceThreadPoolSize=1 so that it matches the old default. Example:

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

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

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 Nov 12, 2024