I'm trying to get setup using Apache Ignite.
I have a dotnet core client application that is attempting to either get a cache (ignite.GetCache<int, CacheThing>("test-cache") or create a cache (ignite.CreateCache<int, CacheThing>).
In both cases the result is the same error (see below).
I am using a docker container from https://hub.docker.com/r/apacheignite/ignite/, and am using the apache/ignite:2.6.0 tag.
The client is attempting to create a cache using a custom dotnet core assembly for the schema definition.
class Program
{
public static bool ClientDisconnected = false;
static void Main(string[] args)
{
Console.WriteLine("Starting client");
string x = typeof(CacheStoreFactory).FullName;
Console.WriteLine("Cache factory: " + x);
var cfg = new IgniteConfiguration
{
SpringConfigUrl = "ignite.config",
JvmOptions = new[]
{
"-Xdebug","-DIGNITE_QUIET=false"
},
};
/*
var cfg = new IgniteConfiguration()
{
ClientMode = true,
JvmOptions = new[]
{
"-Xdebug","-DIGNITE_QUIET=false"
},
BinaryConfiguration = new BinaryConfiguration
{
Types = new List<string>
{
typeof(CacheStoreFactory).FullName,
}
},
};
*/
Console.WriteLine("Ignite -> Start");
using (IIgnite ignite = Ignition.Start(cfg))
{
Console.WriteLine("Destroy test-cache");
//ignite.DestroyCache("test-cache");
//ICache<int, CacheThing> cache = ignite.GetCache<int, CacheThing>("test-cache");
ICache<int, CacheThing> cache = ignite.CreateCache<int, CacheThing>(new CacheConfiguration
{
Name = "test-cache",
ReadThrough = true,
WriteThrough = true,
KeepBinaryInStore = true,
CacheStoreFactory = new CacheStoreFactory()
});
ignite.ClientDisconnected += (sender, eventArgs) =>
{
ClientDisconnected = true;
Console.WriteLine("Client disconnected.");
};
ignite.ClientReconnected += (sender, eventArgs) =>
{
ClientDisconnected = false;
Console.WriteLine("Client reconnected.");
};
Object retrieved = cache.Get(1);
Console.WriteLine(retrieved);
Console.WriteLine("Press enter to quit client");
Console.ReadLine();
}
}
}
at org.apache.ignite.internal.processors.cache.store.GridCacheStoreManagerAdapter.load(GridCacheStoreManagerAdapter.java:293)
at org.apache.ignite.internal.processors.cache.store.GridCacheStoreManagerAdapter.loadAllFromStore(GridCacheStoreManagerAdapter.java:434)
at org.apache.ignite.internal.processors.cache.store.GridCacheStoreManagerAdapter.loadAll(GridCacheStoreManagerAdapter.java:400)
at org.apache.ignite.internal.processors.cache.GridCacheAdapter$18.call(GridCacheAdapter.java:2046)
at org.apache.ignite.internal.processors.cache.GridCacheAdapter$18.call(GridCacheAdapter.java:2044)
at org.apache.ignite.internal.util.IgniteUtils.wrapThreadLoader(IgniteUtils.java:6695)
at org.apache.ignite.internal.processors.closure.GridClosureProcessor$2.body(GridClosureProcessor.java:967)
at org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:110)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NullPointerException
at org.apache.ignite.internal.processors.platform.dotnet.PlatformDotNetCacheStore.doInvoke(PlatformDotNetCacheStore.java:469)
at org.apache.ignite.internal.processors.platform.dotnet.PlatformDotNetCacheStore.load(PlatformDotNetCacheStore.java:176)
at org.apache.ignite.internal.processors.cache.CacheStoreBalancingWrapper.load(CacheStoreBalancingWrapper.java:98)
at org.apache.ignite.internal.processors.cache.store.GridCacheStoreManagerAdapter.loadFromStore(GridCacheStoreManagerAdapter.java:327)
... 11 more
--- End of inner exception stack trace ---
at Apache.Ignite.Core.Impl.PlatformJniTarget.InStreamOutLong[TR](Int32 type, Action`1 outAction, Func`3 inAction, Func`2 readErrorAction)
at SpikeCD750.Program.Main(String[] args) in /home/anton/git/ignite-readthrough/SpikeCD750/Program.cs:line 85
server_1 | [03:07:20,337][SEVERE][sys-#81][GridDhtAtomicCache] <test-cache> Failed processing get request: GridNearSingleGetRequest [futId=1535944038969, key=KeyCacheObjectImpl [part=1, val=1, hasValBytes=true], flags=1, topVer=AffinityTopologyVersion [topVer=6, minorTopVer=0], subjId=f91be4be-6ca6-4b70-8264-6dc5fee43357, taskNameHash=0, createTtl=-1, accessTtl=-1]
server_1 | class org.apache.ignite.IgniteCheckedException: java.lang.NullPointerException
server_1 | at org.apache.ignite.internal.processors.cache.store.GridCacheStoreManagerAdapter.loadFromStore(GridCacheStoreManagerAdapter.java:338)
server_1 | at org.apache.ignite.internal.processors.cache.store.GridCacheStoreManagerAdapter.load(GridCacheStoreManagerAdapter.java:293)
server_1 | at org.apache.ignite.internal.processors.cache.store.GridCacheStoreManagerAdapter.loadAllFromStore(GridCacheStoreManagerAdapter.java:434)
server_1 | at org.apache.ignite.internal.processors.cache.store.GridCacheStoreManagerAdapter.loadAll(GridCacheStoreManagerAdapter.java:400)
server_1 | at org.apache.ignite.internal.processors.cache.GridCacheAdapter$18.call(GridCacheAdapter.java:2046)
server_1 | at org.apache.ignite.internal.processors.cache.GridCacheAdapter$18.call(GridCacheAdapter.java:2044)
server_1 | at org.apache.ignite.internal.util.IgniteUtils.wrapThreadLoader(IgniteUtils.java:6695)
server_1 | at org.apache.ignite.internal.processors.closure.GridClosureProcessor$2.body(GridClosureProcessor.java:967)
server_1 | at org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:110)
server_1 | at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
server_1 | at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
server_1 | at java.lang.Thread.run(Thread.java:748)
server_1 | Caused by: javax.cache.integration.CacheLoaderException: java.lang.NullPointerException
server_1 | ... 12 more
server_1 | Caused by: java.lang.NullPointerException
server_1 | at org.apache.ignite.internal.processors.platform.dotnet.PlatformDotNetCacheStore.doInvoke(PlatformDotNetCacheStore.java:469)
server_1 | at org.apache.ignite.internal.processors.platform.dotnet.PlatformDotNetCacheStore.load(PlatformDotNetCacheStore.java:176)
server_1 | at org.apache.ignite.internal.processors.cache.CacheStoreBalancingWrapper.load(CacheStoreBalancingWrapper.java:98)
server_1 | at org.apache.ignite.internal.processors.cache.store.GridCacheStoreManagerAdapter.loadFromStore(GridCacheStoreManagerAdapter.java:327)
server_1 | ... 11 more
Is it even possible for a dotnet client to create a cache in the Apache Ignite java server?
.NET Cache Store can not be deployed on Java-only node.
Docker container contains Java-only Ignite, and you create a custom Cache Store in your C# code.
So unless Ignite team releases a Docker image running Ignite.NET, you have to create a custom docker image, or start Ignite.NET server nodes in some other way.