GridGain 9.1.9 Release Notes
Overview
GridGain 9.1.9 is a private release that fixes the known issue from the previous release and provides support for WASM compute jobs.
New Features
Support for WebAssembly Computing
This release provides support for using WebAssembly compute jobs in GridGain 9, expanding the options for creating computing jobs. You can compile your code to WebAssembly and then load the binaries as deployment units and execute the code on cluster nodes.
The example below shows how you can execute your code, and assumes it is already deployed to the cluster:
try (IgniteClient client = IgniteClient.builder()
.addresses("127.0.0.1:10800")
.build()
) {
IgniteCompute compute = client.compute();
JobExecutionOptions jobOptions = JobExecutionOptions.builder()
.executorType(JobExecutorType.WASM_EMBEDDED)
.build();
JobDescriptor<String, String> helloDesc = JobDescriptor.<String, String>builder(HELLO_FUNC)
.units(DEPLOYMENT_UNIT)
.options(jobOptions)
.build();
JobTarget target = JobTarget.anyNode(client.cluster().nodes());
String helloRes = compute.execute(target, helloDesc, "World");
System.out.println("Wasm job result: " + helloRes);
}For step-by-step instructions, see WebAssembly Compute Jobs documentation.
Dropping SQL Plans
When executing SQL queries, GridGain caches execution plans and reuses them for later queries. These plans may become outdated as data is updated on the cluster. This release adds a new CLI command that can be used to drop a cache for an individual table, or multiple tables at the same time.
The example below invalidates the cache for a single table:
sql planner invalidate-cache --tables=PUBLIC.PersonImprovements and Fixed Issues
| Issue ID | Category | Description |
|---|---|---|
IGN-28771 |
Cluster Storage Engine |
Fixed an issue that made it impossible to add new values to arrays in configuration. |
IGN-28671 |
General |
You can no longer create a distribution zone that would not include any nodes. |
IGN-28486 |
Cluster SQL Engine |
You can now drop SQL plans from CLI. |
IGN-28349 |
Cluster SQL Engine |
Improved row estimation for all JOIN type operations to improve SQL performance. |
IGN-27839 |
Code Deployment |
You can now load deployment unit code from files on node startup. |
GG-45105 |
Cluster SQL Engine |
Updated parquet from version 1.15.2 to version 1.16.0 and iceberg from version 1.9.2 to version 1.10.0. |
GG-44960 |
Cluster Storage Engine |
Fixed rare cases where table with secondary storage could produce an error in logs. |
GG-44919 |
Distributed Computing |
Added experimental support for WebAssembly compute jobs. |
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.
9.1.8
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
LOCALsnapshot 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.
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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