[GEODE-7246] Export data shouldn't fail if an exception is encountered while exporting a single entry

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: serialization, snapshot
• Assignee: Unassigned
• Reporter: Barrett Oglesby
• Created: 26/Sep/19 19:18
• Updated: 26/Sep/19 19:28

Description

Export data shouldn't fail if an exception is encountered while exporting a single entry

Currently RegionSnapshotService save fails while deserializing the value before writing it to the snapshot file.

org.apache.geode.SerializationException: An IOException was thrown while deserializing
	at org.apache.geode.internal.cache.EntryEventImpl.deserialize(EntryEventImpl.java:1915)
	at org.apache.geode.internal.cache.EntryEventImpl.deserialize(EntryEventImpl.java:1904)
	at org.apache.geode.internal.cache.VMCachedDeserializable.getDeserializedValue(VMCachedDeserializable.java:134)
	at org.apache.geode.internal.cache.EntrySnapshot.getRawValue(EntrySnapshot.java:113)
	at org.apache.geode.internal.cache.EntrySnapshot.getRawValue(EntrySnapshot.java:101)
	at org.apache.geode.internal.cache.EntrySnapshot.getValue(EntrySnapshot.java:130)
	at org.apache.geode.internal.cache.snapshot.SnapshotPacket$SnapshotRecord.<init>(SnapshotPacket.java:79)
	at org.apache.geode.internal.cache.snapshot.LocalExporter.export(LocalExporter.java:46)
	at org.apache.geode.internal.cache.snapshot.RegionSnapshotServiceImpl.exportOnMember(RegionSnapshotServiceImpl.java:322)
	at org.apache.geode.internal.cache.snapshot.RegionSnapshotServiceImpl.save(RegionSnapshotServiceImpl.java:150)
	at org.apache.geode.internal.cache.snapshot.RegionSnapshotServiceImpl.save(RegionSnapshotServiceImpl.java:133)
Caused by: java.io.IOException: Unknown header byte: -3
	at org.apache.geode.internal.InternalDataSerializer.basicReadObject(InternalDataSerializer.java:2876)
	at org.apache.geode.DataSerializer.readObject(DataSerializer.java:2961)
	at org.apache.geode.internal.util.BlobHelper.deserializeBlob(BlobHelper.java:99)
	at org.apache.geode.internal.cache.EntryEventImpl.deserialize(EntryEventImpl.java:1911)

This causes the export to abort.

Instead, it should log a warning in this case and skip the entry.