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The following commit(s) were added to refs/heads/IGNITE-7595 by this push:
new c559232 IGNITE-13331 Document .NET thin client features implemented
in 2.9 release (#8306)
c559232 is described below
commit c5592322b705be65fa49ce8e323b2463f23442a9
Author: Pavel Tupitsyn <ptupit...@apache.org>
AuthorDate: Fri Oct 2 22:23:30 2020 +0300
IGNITE-13331 Document .NET thin client features implemented in 2.9 release
(#8306)
* Documentation for the compute and clustering APIs that appeared in the
.NET thin client
---
docs/_docs/code-snippets/dotnet/DataStreaming.cs | 2 +-
docs/_docs/code-snippets/dotnet/SqlJoinOrder.cs | 2 -
docs/_docs/code-snippets/dotnet/ThinClient.cs | 52 ++++++++++++-
docs/_docs/code-snippets/dotnet/dotnet.csproj | 11 +++
docs/_docs/thin-clients/dotnet-thin-client.adoc | 95 +++++++++++++++++++++---
5 files changed, 146 insertions(+), 16 deletions(-)
diff --git a/docs/_docs/code-snippets/dotnet/DataStreaming.cs
b/docs/_docs/code-snippets/dotnet/DataStreaming.cs
index 1d10182..a03b04a 100644
--- a/docs/_docs/code-snippets/dotnet/DataStreaming.cs
+++ b/docs/_docs/code-snippets/dotnet/DataStreaming.cs
@@ -15,7 +15,7 @@ namespace dotnet_helloworld
public static void DataStreamerExample()
{
- using (var ignite = Ignition.Start(Util.getIngiteCfg()))
+ using (var ignite = Ignition.Start())
{
ignite.GetOrCreateCache<int, string>("myCache");
//tag::dataStreamer1[]
diff --git a/docs/_docs/code-snippets/dotnet/SqlJoinOrder.cs
b/docs/_docs/code-snippets/dotnet/SqlJoinOrder.cs
index 878e650..16fc870 100644
--- a/docs/_docs/code-snippets/dotnet/SqlJoinOrder.cs
+++ b/docs/_docs/code-snippets/dotnet/SqlJoinOrder.cs
@@ -5,8 +5,6 @@ namespace dotnet_helloworld
using System;
using System.Collections.Generic;
using Apache.Ignite.Core;
- using GridGain.Core;
- using GridGain.Core.Security;
public static class SqlJoinOrder
{
diff --git a/docs/_docs/code-snippets/dotnet/ThinClient.cs
b/docs/_docs/code-snippets/dotnet/ThinClient.cs
index f92172d..06d4579 100644
--- a/docs/_docs/code-snippets/dotnet/ThinClient.cs
+++ b/docs/_docs/code-snippets/dotnet/ThinClient.cs
@@ -8,6 +8,7 @@ using Apache.Ignite.Core.Cache.Configuration;
using Apache.Ignite.Core.Cache.Query;
using Apache.Ignite.Core.Client;
using Apache.Ignite.Core.Client.Cache;
+using Apache.Ignite.Core.Client.Compute;
using Apache.Ignite.Core.Configuration;
using Apache.Ignite.Core.Log;
@@ -95,7 +96,7 @@ namespace dotnet_helloworld
public static void ScanQueryFilterDemo()
{
- using (var ignite = Ignition.Start(Util.getIngiteCfg()))
+ using (var ignite = Ignition.Start())
{
var cfg = new IgniteClientConfiguration
{
@@ -158,7 +159,7 @@ namespace dotnet_helloworld
public static void ExecutingSql()
{
- using (var ignite = Ignition.Start(Util.getIngiteCfg()))
+ using (var ignite = Ignition.Start())
{
var cfg = new IgniteClientConfiguration
{
@@ -283,5 +284,52 @@ namespace dotnet_helloworld
}
//end::discovery[]
}
+
+ public static void ClientCluster()
+ {
+ var cfg = new IgniteClientConfiguration();
+ //tag::client-cluster[]
+ IIgniteClient client = Ignition.StartClient(cfg);
+ IClientCluster cluster = client.GetCluster();
+ cluster.SetActive(true);
+ cluster.EnableWal("my-cache");
+ //end::client-cluster[]
+ }
+
+ public static void ClientClusterGroups()
+ {
+ var cfg = new IgniteClientConfiguration();
+ //tag::client-cluster-groups[]
+ IIgniteClient client = Ignition.StartClient(cfg);
+ IClientClusterGroup serversInDc1 =
client.GetCluster().ForServers().ForAttribute("dc", "dc1");
+ foreach (IClientClusterNode node in serversInDc1.GetNodes())
+ Console.WriteLine($"Node ID: {node.Id}");
+ //end::client-cluster-groups[]
+ }
+
+ public static void Compute()
+ {
+ //tag::client-compute-setup[]
+ var igniteCfg = new IgniteConfiguration
+ {
+ ClientConnectorConfiguration = new ClientConnectorConfiguration
+ {
+ ThinClientConfiguration = new ThinClientConfiguration
+ {
+ MaxActiveComputeTasksPerConnection = 10
+ }
+ }
+ };
+
+ IIgnite ignite = Ignition.Start(igniteCfg);
+ //end::client-compute-setup[]
+
+ var cfg = new IgniteClientConfiguration();
+ //tag::client-compute-task[]
+ IIgniteClient client = Ignition.StartClient(cfg);
+ IComputeClient compute = client.GetCompute();
+ int result =
compute.ExecuteJavaTask<int>("org.foo.bar.AddOneTask", 1);
+ //end::client-compute-task[]
+ }
}
}
diff --git a/docs/_docs/code-snippets/dotnet/dotnet.csproj
b/docs/_docs/code-snippets/dotnet/dotnet.csproj
new file mode 100644
index 0000000..14f8fa3
--- /dev/null
+++ b/docs/_docs/code-snippets/dotnet/dotnet.csproj
@@ -0,0 +1,11 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+ <PropertyGroup>
+ <TargetFramework>netcoreapp2.0</TargetFramework>
+ </PropertyGroup>
+
+ <ItemGroup>
+ <PackageReference Include="Apache.Ignite" Version="2.9.0-alpha20201001" />
+ </ItemGroup>
+
+</Project>
diff --git a/docs/_docs/thin-clients/dotnet-thin-client.adoc
b/docs/_docs/thin-clients/dotnet-thin-client.adoc
index 07cba4f..1acc02c 100644
--- a/docs/_docs/thin-clients/dotnet-thin-client.adoc
+++ b/docs/_docs/thin-clients/dotnet-thin-client.adoc
@@ -1,5 +1,7 @@
= .NET Thin Client
+:sourceCodeFile: code-snippets/dotnet/ThinClient.cs
+
== Prerequisites
- Supported runtimes: .NET 4.0+, .NET Core 2.0+
- Supported OS: Windows, Linux, macOS (any OS supported by .NET Core 2.0+)
@@ -16,7 +18,7 @@ The `IgniteClientConfiguration.Endpoints` property is
mandatory; it must point t
[source, csharp]
----
-include::code-snippets/dotnet/ThinClient.cs[tag=connecting,indent=0]
+include::{sourceCodeFile}[tag=connecting,indent=0]
----
=== Failover
@@ -38,7 +40,7 @@ You can observe the discovery process by enabling logging
and/or calling `IIgnit
[source, csharp]
----
-include::code-snippets/dotnet/ThinClient.cs[tag=discovery,indent=0]
+include::{sourceCodeFile}[tag=discovery,indent=0]
----
[WARNING]
@@ -90,17 +92,17 @@ The `ICacheClient` interface provides the key-value API.
You can use the followi
[source, csharp]
----
-include::code-snippets/dotnet/ThinClient.cs[tag=createCache,indent=0]
+include::{sourceCodeFile}[tag=createCache,indent=0]
----
-Use `IIgnite​Client.GetCacheNames()` to obtain a list of all existing caches.
+Use `IIgniteClient.GetCacheNames()` to obtain a list of all existing caches.
=== Basic Operations
The following code snippet demonstrates how to execute basic cache operations
on a specific cache.
[source, csharp]
----
-include::code-snippets/dotnet/ThinClient.cs[tag=basicOperations,indent=0]
+include::{sourceCodeFile}[tag=basicOperations,indent=0]
----
////
@@ -113,7 +115,7 @@ The .NET thin client supports the Binary Object API
described in the link:key-va
[source, csharp]
----
-include::code-snippets/dotnet/ThinClient.cs[tag=binaryObj,indent=0]
+include::{sourceCodeFile}[tag=binaryObj,indent=0]
----
== Scan Queries
@@ -125,13 +127,13 @@ The query condition is specified by an
`ICacheEntryFilter` object that is passed
Define a query filter as follows:
[source, csharp]
----
-include::code-snippets/dotnet/ThinClient.cs[tag=scanQry,indent=0]
+include::{sourceCodeFile}[tag=scanQry,indent=0]
----
Then execute the scan query:
[source, csharp]
----
-include::code-snippets/dotnet/ThinClient.cs[tag=scanQry2,indent=0]
+include::{sourceCodeFile}[tag=scanQry2,indent=0]
----
@@ -142,8 +144,79 @@ Alternatively, SQL queries can be performed via Ignite
LINQ provider.
[source, csharp]
----
-include::code-snippets/dotnet/ThinClient.cs[tag=executingSql,indent=0]
+include::{sourceCodeFile}[tag=executingSql,indent=0]
+----
+
+
+== Cluster API
+
+Cluster functionality (APIs for accessing cluster and nodes) is provided via
the `IClientCluster` interface.
+You can get an instance of `IClientCluster` from `IIgniteClient` as follows:
+[source, csharp]
+-------------------------------------------------------------------------------
+include::{sourceCodeFile}[tag=client-cluster,indent=0]
+-------------------------------------------------------------------------------
+
+Through the `IClientCluster` interface you can:
+
+* Get or set cluster state
+* Get a list of all cluster members
+* Create logical groups of nodes
+
+=== Logical nodes grouping
+
+API to create logical groups of nodes within your cluster is provided by
`IClientClusterGroup` interface.
+Instance of this interface can be obtained from a parent `IClientClusterGroup`
instance using node-filtering methods.
+
+The `IClientCluster` instance implements `IClientClusterGroup` and is a root
cluster group, which includes all nodes in the cluster.
+
+Here is how you can use this API to get all server nodes in certain
data-center (assuming node attribute "dc" is set to bind node and data-center):
+[source, csharp]
+-------------------------------------------------------------------------------
+include::{sourceCodeFile}[tag=client-cluster-groups,indent=0]
+-------------------------------------------------------------------------------
+
+Refer to link:distributed-computing/cluster-groups[Cluster groups] to get more
information about logical nodes grouping.
+
+
+== Executing compute tasks
+
+Thin client has basic functionality to execute compute tasks. This feature is
disabled by default on the server side.
+Set `ThinClientConfiguration.MaxActiveComputeTasksPerConnection` to a non-zero
value to enable:
+
+[tabs]
+--
+tab:Spring XML[]
+[source,xml]
+----
+<bean class="org.apache.ignite.configuration.IgniteConfiguration"
id="ignite.cfg">
+ <property name="clientConnectorConfiguration">
+ <bean class="org.apache.ignite.configuration.ClientConnectorConfiguration">
+ <property name="thinClientConfiguration">
+ <bean class="org.apache.ignite.configuration.ThinClientConfiguration">
+ <property name="maxActiveComputeTasksPerConnection" value="100" />
+ </bean>
+ </property>
+ </bean>
+ </property>
+</bean>
+----
+tab:C#[]
+[source,csharp]
+----
+include::{sourceCodeFile}[tag=client-compute-setup,indent=0]
----
+--
+
+Compute functionality is provided by `IComputeClient` interface, which can be
obtained from `IIgniteClient` instance.
+
+Currently, thin clients can run already deployed tasks by class name. Task
classes should be depoyed in advance to the server nodes.
+[source, java]
+-------------------------------------------------------------------------------
+include::{sourceCodeFile}[tag=client-compute-task,indent=0]
+-------------------------------------------------------------------------------
+
+See link:distributed-computing/distributed-computing[distributed computing]
for more information about compute grid functionality.
== Security
@@ -155,7 +228,7 @@ To use encrypted communication between the thin client and
the cluster, you have
The following code example demonstrates how to configure SSL parameters in the
thin client.
[source, csharp]
----
-include::code-snippets/dotnet/ThinClient.cs[tag=ssl,indent=0]
+include::{sourceCodeFile}[tag=ssl,indent=0]
----
@@ -166,6 +239,6 @@ Configure link:security/authentication[authentication on
the cluster side] and p
[source, csharp]
----
-include::code-snippets/dotnet/ThinClient.cs[tag=auth,indent=0]
+include::{sourceCodeFile}[tag=auth,indent=0]
----
