GridGain 9.1.3 Release Notes
Overview
GridGain 9.1.3 is a release with multiple minor improvements and significant improvements on cluster stability and performance.
Major Changes
Changed Syntax for Getting Nodes in Java
The ignite.clusterNodes()
method was deprecated in this release and is replaced by ignite.cluster().nodes()
method. This method now returns nodes in the logical topology.
The clusterNodes()
will continue to work for backwards compatiblily, however we recommend changing your code to use the new method.
Ignite ignite = node.api();
// Deprecated method for getting cluster nodes
var oldClusterNodes = ignite.clusterNodes();
// New method for getting cluster nodes
var newClusterNodes = ignite.cluster().nodes()
New Features
Creating Caches From Java
With this release, you can use the @Cache
annotation in Java to create caches from Java classes. You can create caches from Key-Value POJOs. Once a cache is created, you can work with it as described in cache documentation.
class PojoKey {
@Id
Integer id;
@Id(SortOrder.DESC)
@Column(value = "id_str", length = 20)
String idStr;
}
@Cache(
value = "kv_pojo",
zone = @Zone(
value = "zone_test",
replicas = 2,
storageProfiles = "default"
),
colocateBy = { @ColumnRef("id"), @ColumnRef("id_str") },
indexes = { @Index(value = "ix", columns = {
@ColumnRef(value = "f_name"),
@ColumnRef(value = "l_name") })
}
)
class PojoValue {
@Column("f_name")
String firstName;
@Column("l_name")
String lastName;
String str;
}
Table myTable = ignite.catalog().createCache(PojoKey.class, PojoValue.class);
KeyValueView<PojoKey, PojoValue> view = myTable.keyValueView(PojoKey.class, PojoValue.class);
New Method to Get Local Node
With this release, you can use the new ignite.cluster().localNode()
method to quickly get the local embedded node.
Improvements and Fixed Issues
Enterprise Edition Changes
Issue ID | Category | Description |
---|---|---|
IGN-27966 |
Metrics and Monitoring |
Added CpuLoad metric to os metric source and UpTime metric to jvm metric source. |
IGN-27959 |
Configuration |
You can now use old configuration from before 9.1.0 release after update. |
IGN-27922 |
General |
Added |
IGN-27861 |
SQL |
In the EXPLAIN command output, offset and fetch attributes now have consistent meaning in Sort and Limit sections. |
IGN-27835 |
SQL |
Changed the column name resolution algorithm for columns with the same name during JOIN operation. An index with a $ separator is now added to the column to avoid collision. |
IGN-27820 |
SQL |
JDBC driver now provides correct metadata for all available schemas. |
IGN-27787 |
SQL |
Improved EXPLAIN command output. |
IGN-27742 |
SQL |
Fixed an issue that caused the createTableAsync method to not fetch the table when using non-default schema. |
IGN-27724 |
Platforms and Clients |
C++ client now supports heartbeats. |
IGN-27702 |
SQL |
Added support for EXPLAIN MAPPING FOR command. |
IGN-27676 |
Data Streamer |
Data Streamer: fixed the receiver API. Added |
IGN-27650 |
SQL |
Fixed incorrect parsing of DATE, TIME, TIMESTAMP, and TIMESTAMP WITH LOCAL TIME ZONE in the CAST(string AS <datetime type> FORMAT 'format-string') operation. |
IGN-27631 |
SQL |
You now need to commit the explicit transaction in the script for it to be executed. |
IGN-25829 |
Platforms and Clients |
.NET: Added overloads with |
GG-43835 |
Cluster Data Snapshots and Recovery |
Fixed an issue that could lead to some data not being restored from snapshots. |
GG-43814 |
Cluster Rolling Upgrade |
Fixed an issue that prevented older node from joining GridGain 9.1.2 cluster during rolling upgrade. |
GG-43642 |
SQL |
Added support for automatic conversion of values of legacy java time api during DCR from GridGain 8. |
GG-43626 |
SQL |
Updated parquet-avro to version 1.15.2. |
GG-43534 |
Cluster Continuous Queries |
Fixed continuous query returning incorrect results on primary replica miss. |
GG-43419 |
Cluster Storage Engine |
Cluster nodes will no longer start if there are storage profiles with storage engines that are forbidden by the provided license in the node configuration. |
GG-43392 |
Builds and Deliveries |
RPM packages are now correctly signed. |
GG-43177 |
Cluster SQL Engine |
Improved performance of COPY FROM command when exporting data into parquet format. |
GG-43136 |
Cluster SQL Engine |
Fixes an issue with creating sequences in SQL scripts |
GG-41861 |
Cluster Architecture |
You can now create caches by using Catalog API. |
Upgrade Information
You can upgrade to current GridGain version from previous releases. Below is a list of versions that are compatible with the current version. Compatibility with other versions is not guaranteed. If you are on a version that is not listed, contact GridGain for information on upgrade options.
9.1.0
, 9.1.1
, 9.1.2
Known Limitations
Data Restoration After Data Rebalance
Currently, data rebalance may cause partition distribution to change and cause issues with snapshots and data recovery. In particular:
-
It is currently not possible to restore a
LOCAL
snapshot if data rebalance happened after snapshot creation. This will be addressed in one of the upcoming releases. -
It is currently not possible to perform point-in-time recovery if data rebalance happened after table creation. This will be addressed in one of the upcoming releases.
Data Center Replication With Complex Topologies
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 releases.
SQL Performance in Complex Scenarios
There are known issues with the performance of SQL read-write transactions in complex read-write scenarios. These issues will be addressed in an upcoming releases.
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