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Posted to issues@ignite.apache.org by "Rahul Mohan (Jira)" <ji...@apache.org> on 2023/10/22 10:15:00 UTC
[jira] [Commented] (IGNITE-20688) Java Thin Client - Error while deserializing Collection
[ https://issues.apache.org/jira/browse/IGNITE-20688?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17778336#comment-17778336 ]
Rahul Mohan commented on IGNITE-20688:
--------------------------------------
Hi [~PetrovMikhail] ,
Let me know if you need more details. I am also open to contributing here if it helps, as this is seriously affecting Ignite usage in our apps.
> Java Thin Client - Error while deserializing Collection
> -------------------------------------------------------
>
> Key: IGNITE-20688
> URL: https://issues.apache.org/jira/browse/IGNITE-20688
> Project: Ignite
> Issue Type: Bug
> Components: binary, thin client
> Affects Versions: 2.9, 2.10, 2.12, 2.13, 2.14, 2.15
> Reporter: Rahul Mohan
> Assignee: Mikhail Petrov
> Priority: Major
> Attachments: image001.png
>
>
> I have encountered an issue in deserializing cache values which are of Collection type.
> The issue occurs if a field in different objects within the collection points to the same reference.
> *Versions:*
> org.apache.ignite:ignite-core:2.9.0 to org.apache.ignite:ignite-core:2.15.0
>
> {code:java}
> Person.java
> public class Person implements Serializable {
> private String id;
> private String firstName;
> private String lastName;
> private double salary;
> private String country;
> private String deleted;
> private Set<String> accounts;
> }
> Client
> ClientCacheConfiguration cacheCfg = new ClientCacheConfiguration().setName(cacheName).
> setCacheMode(CacheMode.REPLICATED).
> setWriteSynchronizationMode(CacheWriteSynchronizationMode.FULL_SYNC);
>
> cache = client.getOrCreateCache(cacheCfg);
>
> Set<String> set = new HashSet<>();
> set.add("1");
>
> List<Person> persons = new ArrayList<>();
> persons.add(new Person("105286a4","Jack","Smith",10000f, "USA","false", set));
> persons.add(new Person("98545b0fd3af","John", "Doe", 500000f, "Australia","false", null));
> persons.add(new Person("98545b0fd3afd","Hari","M",400000f, "India", null, null));
> persons.add(new Person("985488b0fd3ae","Bugs","Bunny",300000f,"Wabbit Land ", null, set));
> cache.put("group1", value) // Write collection to cache
>
> List<Person> persons = (List<Person>) cache.get("group1"); // Get from cache, Exception here {code}
>
> *Exception:*
> {code:java}
> class org.apache.ignite.binary.BinaryObjectException: Failed to deserialize object [typeName=com.ignite.example.model.Person]
> at org.apache.ignite.internal.binary.BinaryClassDescriptor.read(BinaryClassDescriptor.java:927)
> at org.apache.ignite.internal.binary.BinaryReaderExImpl.deserialize0(BinaryReaderExImpl.java:1764)
> at org.apache.ignite.internal.binary.BinaryReaderExImpl.deserialize(BinaryReaderExImpl.java:1716)
> at org.apache.ignite.internal.binary.GridBinaryMarshaller.deserialize(GridBinaryMarshaller.java:316)
> at org.apache.ignite.internal.client.thin.ClientBinaryMarshaller.deserialize(ClientBinaryMarshaller.java:74)
> at org.apache.ignite.internal.client.thin.ClientUtils.unwrapBinary(ClientUtils.java:557)
> at org.apache.ignite.internal.client.thin.ClientUtils.unwrapCollection(ClientUtils.java:578)
> at org.apache.ignite.internal.client.thin.ClientUtils.unwrapBinary(ClientUtils.java:562)
> at org.apache.ignite.internal.client.thin.ClientUtils.readObject(ClientUtils.java:546)
> at org.apache.ignite.internal.client.thin.TcpClientCache.readObject(TcpClientCache.java:556)
> at org.apache.ignite.internal.client.thin.TcpClientCache.readObject(TcpClientCache.java:561)
> at org.apache.ignite.internal.client.thin.TcpClientCache$$Lambda$395/1950117092.apply(Unknown Source)
> at org.apache.ignite.internal.client.thin.TcpClientChannel.receive(TcpClientChannel.java:284)
> at org.apache.ignite.internal.client.thin.TcpClientChannel.service(TcpClientChannel.java:219)
> at org.apache.ignite.internal.client.thin.ReliableChannel.service(ReliableChannel.java:198)
> at org.apache.ignite.internal.client.thin.ReliableChannel.affinityService(ReliableChannel.java:261)
> at org.apache.ignite.internal.client.thin.TcpClientCache.cacheSingleKeyOperation(TcpClientCache.java:508)
> at org.apache.ignite.internal.client.thin.TcpClientCache.get(TcpClientCache.java:111)
> at com.ignite.example.service.ApacheIgniteService.printAllKeys(ApacheIgniteService.java:117)
> at com.ignite.example.service.ApacheIgniteService.init(ApacheIgniteService.java:103)
> at com.ignite.example.IgniteCacheExampleApplication.run(IgniteCacheExampleApplication.java:22)
> at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:768)
> at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:752)
> at org.springframework.boot.SpringApplication.run(SpringApplication.java:314)
> at com.ignite.example.IgniteCacheExampleApplication.main(IgniteCacheExampleApplication.java:17)
> Caused by: class org.apache.ignite.binary.BinaryObjectException: Failed to read field [name=accounts]
> at org.apache.ignite.internal.binary.BinaryFieldAccessor.read(BinaryFieldAccessor.java:192)
> at org.apache.ignite.internal.binary.BinaryClassDescriptor.read(BinaryClassDescriptor.java:888)
> ... 24 more
> Caused by: java.lang.ArrayIndexOutOfBoundsException: -430
> at org.apache.ignite.internal.binary.streams.BinaryHeapInputStream.readByteAndShift(BinaryHeapInputStream.java:120)
> at org.apache.ignite.internal.binary.streams.BinaryAbstractInputStream.readByte(BinaryAbstractInputStream.java:37)
> at org.apache.ignite.internal.binary.BinaryReaderExImpl.<init>(BinaryReaderExImpl.java:219)
> at org.apache.ignite.internal.binary.BinaryReaderExImpl.<init>(BinaryReaderExImpl.java:186)
> at org.apache.ignite.internal.binary.BinaryUtils.doReadObject(BinaryUtils.java:1801)
> at org.apache.ignite.internal.binary.BinaryReaderExImpl.deserialize0(BinaryReaderExImpl.java:1748)
> at org.apache.ignite.internal.binary.BinaryReaderExImpl.deserialize(BinaryReaderExImpl.java:1716)
> at org.apache.ignite.internal.binary.BinaryReaderExImpl.readField(BinaryReaderExImpl.java:1978)
> at org.apache.ignite.internal.binary.BinaryFieldAccessor$DefaultFinalClassAccessor.read0(BinaryFieldAccessor.java:703)
> at org.apache.ignite.internal.binary.BinaryFieldAccessor.read(BinaryFieldAccessor.java:188) {code}
> *Analysis*
> The exception occurs due to a OutOfBounds read happening in
> obj = BinaryUtils.doReadObject(in, ctx, ldr, this);
> This is because *handlePos* points to a location in the ByteBuffer which is outside that of the Buffer in the current object resulting in a negative offset (java.lang.ArrayIndexOutOfBoundsException: {*}-430{*})
> {{!image001.png!}}
> The serialization works and the Byte array response returned from the server is the same as that was written. It's the way HANDLE types within a Collection are read that's probably causing this.
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