What’s New in This Release

Introduction

This maintenance release includes many bug fixes, updates, and improvements to GridGain. In addition to the Fixed Issues, this release includes:

  • Added support for redeploying services on the fly.

  • Added events on cluster activation and deactivation.

  • Added JMX ability to exclude nodes from topology.

  • Added support of JAR files to UriDeploymentSpi.

  • Updated Cassandra Store Driver version to 3.2

  • Better Java 11 support.

  • Several improvements and fixes for Web Console.

  • Improved performance and stability (memory leak fixes, fixes for SQL, indexes, etc.)

Changes in Behavior

Services Redeployment and JAR File Support

Now you can redeploy services on the fly (without having to restart the node) via DeploymentSpi.

If you have a service in a cluster and you want to update its implementation:

  1. Update the JAR file(s) in the repository where the service is stored (pointed to by your UriDeploymentSpi configuration’s uriList property).

  2. Call the services().cancel() method to stop the service.

  3. Redeploy the service.

This is the same process currently used to redeploy tasks. For more information, see Service Updates (Redeployment).

Note
 As part of this change, UriDeploymentSpi now supports JAR files.

Fixed: Dynamic Changes to Cache Configurations (IGNITE-11541)

Prior to version 8.7.5, if you had a cache configured via XML configuration and changed it dynamically with a DDL statement (for example, alter a table or create/drop indexes), restarting the node would cause the cache to load its configuration from the XML configuration, ignoring the changes made dynamically.

If you have changed a cache configuration dynamically and have to restart a node, there are a couple of workarounds to the issue described above:

Remove the cache configuration from the configuration file before restarting the node. In this case the cache configuration will be loaded from the metadata. Change the XML configuration the same way you changed the cache dynamically. For example, if you dropped a column, remove that column from the cache configuration.

Beginning in version 8.7.5, changes made dynamically will persist after a node restart. If you want to keep the old behavior (i.e. always load static cache configuration after a restart), add the following property to the node’s startup command:

-DIGNITE_KEEP_STATIC_CACHE_CONFIGURATION=true

Installation and Upgrade Information

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

Known Issues

GG-18739

Persistence

If you have enabled WAL compaction and also disabled WAL archiving, the following error message is written to the log on node startup: "Compression of WAL segment was skipped due to unexpected error". You can safely ignore this error message (the issue will be addressed in an upcoming release).

Fixed Issues

GridGain Community Edition Changes

IGN-13796

Cache

Fixed possible PME hang on concurrent coordinator fail and client join.

IGN-13792

Cache

Fixed transaction hang when sessionEnd throws an exception.

IGN-13516

Cache

Fixed: cache.get() sporadically returns 'null' if a remove with skip store is invoked concurrently.

IGN-13293

Cache

First node in new cluster filters out cache configurations received from old cluster.

IGN-12977

Cache

Reduced memory footprint and allocation pressure of affinity assignments.

IGN-11847

Cache

Fixed possible failure during async partition cleanup.

IGN-6961

Cache

Fixed hanging parallel write&evict in CacheWriteBehindStore.

GG-17479

Cache

Fixed memory leak on unstable topology caused by partition reservation.

IGN-13811

Cassandra Integration

Fixed missing dependencies in cassandra-store module.

IGN-13137

Communication

Fixed SSL bug when ignite concurrently sends message and close GridNioSession.

IGN-13030

Compute Grid

Fix deserialization error of cache metrics with OptimizedMarshaller.

IGN-12385

Control Utilities

Fixed invalid message for control.sh utility when removing node from baseline on an inactive cluster.

IGN-10934

Control Utilities

Added coordinator information to control.sh output.

IGN-12317

Data Structures

Fixed sporadic IgniteQueue hang caused by an incorrect CQ listener notification logic.

IGN-13527

Deployment

Add support of JAR files to UriDeploymentSpi.

IGN-13540

Diagnostic

Improved LRT diagnostic messages: now request from local node is sent to near node to get the dump of a thread that started the transaction.

IGN-13466

Diagnostic

Added consistentId to "Node FAILED" message.

IGN-13290

Diagnostic

Improved error message with advice about required JVM parameters for Java 9+.

IGN-8573

Diagnostic

Added limit of diagnostic warnings.

IGN-13611

Discovery

Fixed race on client re-connection that can lead to client segmentation.

IGN-13543

Discovery

Fixed infinite 'no next node in topology' loop in TcpDiscoverySpi.

IGN-13509

Discovery

Implemented: healthy node must ignore a list of failed nodes received from segmented nodes.

IGN-13430

Discovery

Fixed detection of leaving server nodes if SSL is on.

IGN-13404

Discovery

Data packet will be compressed on joining nodes to topology.

IGN-13184

Discovery

TcpDiscoverySpi discard queue heap usage optimization.

IGN-13334

Discovery

Added additional logging for client-server connections in TCP-discovery.

IGN-13145

Discovery

Improve join process, when marshaller’s folder has many files.

IGN-13040

Discovery

Fixed 'Invalid node order' assertion in discovery.

IGN-13038

Discovery

Fixed potential discovery hang when a joining node receives a client reconnect message.

IGN-7529

Discovery

Node considered failed by cluster is forced to shut down when sending another Join Request.

IGN-12732

General

Fixed node hanging in case node is stopped right after start and concurrent grid utility client connecting.

IGN-13116

Metrics & Monitoring

Added getTotalUsedPages property for DataRegionMetrics, which shows the total number of pages used for storing the data.

IGN-12198

Metrics & Monitoring

Provided description for org.apache.ignite.mxbean.TransactionMetricsMxBean.

IGN-8559

Metrics & Monitoring

CacheSize cluster metrics now aggregates all nodes local metrics.

IGN-13721

Partition Map Exchange

Fixed PME hang on coordinator failure.

IGN-13341

Partition Map Exchange

Fixed PME hang when merged exchange node leaves before sending single message.

IGN-13260

Partition Map Exchange

Fixed uncaught exception in TTL during PME.

IGN-12976

Partition Map Exchange

Apply affinity changes on coordinator in multi-threaded mode.

GG-17327

Partition Map Exchange

Avoid keeping metrics-related data in exchange history.

IGN-13783

Persistence

Fixed case when index rebuild broke consistency between partition and index itself.

IGN-13704

Persistence

Static cache configuration should not override persisted cache configuration.

IGN-13699

Persistence

Information about possible long GC pauses during waiting and holding checkpoint write lock.

IGN-13645

Persistence

Pages processing moved to isolated ForkJoinPool.

IGN-13033

Persistence

Avoid to start WAL compressor in recovery mode.

IGN-12806

Persistence

Reduced checkpoint write lock hold time by optimistically saving metadata outside of checkpoint write lock.

IGN-10411

Persistence

Support events on cluster activation and deactivation.

IGN-13814

Persistence

Fixed unsuccessful node recovery after incomplete WAL write when no-archiver mode is enabled.

IGN-13813

Persistence

Fixed NPE on node startup with enabled PDS and SSL.

GG-17390

Persistence

Fixed possible data storage corruption on start in no-WAL-archiver mode.

GG-17383

Platform .NET

Added .NET Core framework dependent binaries and .NET Docker image.

GG-18794

Platform .NET

Added strong-named assemblies for .NET Core.

IGN-13051

Plugins

Added discovery data to PluginProvider.validateNewNode, deprecated old method.

GG-14807

Security

Avoid to remove expired session from cache if cluster deactivated.

IGN-13951

SQL

SQL: Fixed memory leak in connection manager.

IGN-13641

SQL

Fixed races on mvcc cache start-up.

IGN-13818

SQL

Fixed deserialization issue during DELETE query execution.

IGN-13286

SQL

Fixed potential memory leak.

IGN-13093

SQL

Fixed TransactionException handling in mvcc mode.

IGN-12973

SQL

Fixed indexes corruption on node stop under load.

IGN-12661

SQL

Fix failure after node restart with mvcc cache and persistence enabled.

IGN-12637

SQL

Fixed broken rebalance for MVCC caches.

IGN-12447

SQL

Fixed query exception handling.

IGN-12429

SQL

MVCC: Fix EntryProcessor P2P deployment.

IGN-11361

SQL

Automatic deadlock detection and resolution for MVCC caches

IGN-13306

Transactions

Fixed assertion error in preparing state transaction.

GG-17328

Transactions

Fixed memory leak in the GridCacheTxFinishSync#threadMap.

GridGain Enterprise Edition Changes

GG-17490

Data Center Replication

Fixed possible deadlock at startup in DR.

GG-18655

Kafka Connector

Kafka dependency upgraded to 2.2.0 for Kafka Connect.

GG-18803

Kafka Connector

Added missing dependencies to GridGain Kafka Connector scripts.

GG-13166

Rolling Upgrade

Added version information in rolling update compatibility message.

GG-18567

Rolling Upgrade

Fixed compatibility with older versions.

GridGain Ultimate Edition Changes

IGN-13709

Point-in-Time Recovery

Fixed page store corruption that may be caused by early file downloader close during PITR.

GG-14526

Point-in-Time Recovery

Attempt to PITR recovery with list of caches lead to exception.

GG-14777

Snapshots

Fixed: issue with hanging automatic snapshot when system property is set inconsistent in the cluster.

GG-14733

Snapshots

Fixed: Incremental snapshot fails if checkpointer writes pages of partition which was empty on snapshot start.

GG-14708

Snapshots

Fixed: zero-sized partition file created in snapshot for an empty cache or cache group.

GG-14662

Snapshots

Output of all password arguments in snapshot-utility are masked.

GG-14587

Snapshots

Snapshot utility now logs hostname and IP-address of node from which it was launched.

GG-13944

Snapshots

Fixed assertion error of on snapshot cancel command.

Management and Monitoring Changes

GG-14568

Visor GUI

Implemented queries cancellation.

IGN-13476

WebConsole

Added ability to exclude node from topology via JMX beans.

IGN-13462

WebConsole

Changed scaling on mobile devices.

IGN-13226

WebConsole

Web Agent: Implemented support for "--disable-demo".

IGN-13112

WebConsole

Implemented queries cancellation.

IGN-13071

WebConsole

Added more countries.

IGN-12614

WebConsole

Refactored all screens to show "no-data" message instead of blocking modal.

GG-17784

WebConsole

Fixed usability issue when cluster has caches with groups.

GG-17375

WebConsole

Implemented support for Mongo 4.x and latest Ubuntu.

GG-14863

Visor GUI

Fixed creation of snapshot in case when PITR is enabled.

GG-14745

Visor

Added user login to "Visor connected" message.

GG-14135

Visor GUI

Disconnect from secure cluster if cluster was restarted or user idle.

GG-18487

WebConsole

Added missing DR properties on "Configuration" screen.

GG-18320

WebConsole

Updated landing page with new design.

GG-17758

WebConsole

Fixed snapshot availability detection logic.

GG-14633

Visor GUI

Fixed "Snapshots" tab refresh logic.

GG-18097

WebConsole

Added confirmation on changing snapshot schedule enabled state.

Related Information

Customer Support

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