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https://issues.apache.org/jira/browse/IGNITE-14347?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ivan Bessonov updated IGNITE-14347:
-----------------------------------
    Issue Type: Bug  (was: Improvement)

> Fix Node failure on Receiving Data of Unknown class via Distributed 
> Metastorage
> -------------------------------------------------------------------------------
>
>                 Key: IGNITE-14347
>                 URL: https://issues.apache.org/jira/browse/IGNITE-14347
>             Project: Ignite
>          Issue Type: Bug
>            Reporter: Atri Sharma
>            Assignee: Atri Sharma
>            Priority: Major
>             Fix For: 2.11
>
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> When a node sees an object of a class that is missing on this node's 
> classpath, it fails with the following exception:
> {noformat}
> [16:46:47,134][SEVERE][disco-notifier-worker-#41][] Critical system error 
> detected. Will be handled accordingly to configured handler 
> [hnd=StopNodeOrHaltFailureHandler [tryStop=false, timeout=0, 
> super=AbstractFailureHandler [ignoredFailureTypes=UnmodifiableSet 
> [SYSTEM_WORKER_BLOCKED, SYSTEM_CRITICAL_OPERATION_TIMEOUT]]], 
> failureCtx=FailureContext [type=CRITICAL_ERROR, err=class 
> o.a.i.IgniteCheckedException: Failed to find class with given class loader 
> for unmarshalling (make sure same versions of all classes are available on 
> all nodes or enable peer-class-loading) 
> [clsLdr=sun.misc.Launcher$AppClassLoader@764c12b6, 
> cls=example.ClientNode$BamboozleClass]]]
> class org.apache.ignite.IgniteCheckedException: Failed to find class with 
> given class loader for unmarshalling (make sure same versions of all classes 
> are available on all nodes or enable peer-class-loading) 
> [clsLdr=sun.misc.Launcher$AppClassLoader@764c12b6, 
> cls=example.ClientNode$BamboozleClass]
>       at 
> org.apache.ignite.marshaller.jdk.JdkMarshaller.unmarshal0(JdkMarshaller.java:128)
>       at 
> org.apache.ignite.marshaller.jdk.JdkMarshaller.unmarshal0(JdkMarshaller.java:138)
>       at 
> org.apache.ignite.marshaller.AbstractNodeNameAwareMarshaller.unmarshal(AbstractNodeNameAwareMarshaller.java:80)
>       at 
> org.apache.ignite.internal.processors.metastorage.persistence.DistributedMetaStorageUtil.unmarshal(DistributedMetaStorageUtil.java:61)
>       at 
> org.apache.ignite.internal.processors.metastorage.persistence.DistributedMetaStorageImpl.completeWrite(DistributedMetaStorageImpl.java:1161)
>       at 
> org.apache.ignite.internal.processors.metastorage.persistence.DistributedMetaStorageImpl.onUpdateMessage(DistributedMetaStorageImpl.java:1089)
>       at 
> org.apache.ignite.internal.managers.discovery.GridDiscoveryManager$4.onDiscovery0(GridDiscoveryManager.java:650)
>       at 
> org.apache.ignite.internal.managers.discovery.GridDiscoveryManager$4.lambda$onDiscovery$0(GridDiscoveryManager.java:521)
>       at 
> org.apache.ignite.internal.managers.discovery.GridDiscoveryManager$DiscoveryMessageNotifierWorker.body0(GridDiscoveryManager.java:2718)
>       at 
> org.apache.ignite.internal.managers.discovery.GridDiscoveryManager$DiscoveryMessageNotifierWorker.body(GridDiscoveryManager.java:2756)
>       at 
> org.apache.ignite.internal.util.worker.GridWorker.run(GridWorker.java:119)
>       at java.lang.Thread.run(Thread.java:748)
> Caused by: java.lang.ClassNotFoundException: example.ClientNode$BamboozleClass
>       at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
>       at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
>       at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:352)
>       at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
>       at java.lang.Class.forName0(Native Method)
>       at java.lang.Class.forName(Class.java:348)
>       at 
> org.apache.ignite.internal.util.IgniteUtils.forName(IgniteUtils.java:9061)
>       at 
> org.apache.ignite.marshaller.jdk.JdkMarshallerObjectInputStream.resolveClass(JdkMarshallerObjectInputStream.java:58)
>       at 
> java.io.ObjectInputStream.readNonProxyDesc(ObjectInputStream.java:1925)
>       at java.io.ObjectInputStream.readClassDesc(ObjectInputStream.java:1808)
>       at 
> java.io.ObjectInputStream.readOrdinaryObject(ObjectInputStream.java:2099)
>       at java.io.ObjectInputStream.readObject0(ObjectInputStream.java:1625)
>       at java.io.ObjectInputStream.readObject(ObjectInputStream.java:465)
>       at java.io.ObjectInputStream.readObject(ObjectInputStream.java:423)
>       at 
> org.apache.ignite.marshaller.jdk.JdkMarshaller.unmarshal0(JdkMarshaller.java:123)
>       ... 11 more{noformat}
> The result is that one node can write an object of some custom class to the 
> metastorage and make all other nodes fail.
> The following reproducer can be used:
> {code:java}
> public class ClientNode {
>     public static void main(String[] args) throws IgniteCheckedException {
>         IgniteConfiguration igniteCfg = 
> nodeConfiguration().setClientMode(true);
>         IgniteKernal ignite = (IgniteKernal) Ignition.start(igniteCfg);
>         DistributedMetaStorage metaStorage = 
> ignite.context().distributedMetastorage();
>         metaStorage.write("hey", new BamboozleClass());
>     }
>     private static IgniteConfiguration nodeConfiguration() {
>         IgniteConfiguration igniteCfg = new IgniteConfiguration();
>         TcpDiscoverySpi discoverySpi = new TcpDiscoverySpi();
>         discoverySpi.setIpFinder(new TcpDiscoveryVmIpFinder()
>                 
> .setAddresses(Collections.singleton("127.0.0.1:47500..47600")));
>         igniteCfg.setDiscoverySpi(discoverySpi);
>         return igniteCfg;
>     }
>     public static class BamboozleClass implements Serializable {
>     }
> }{code}



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