[OAK-8207] Read-only DocumentNodeStore tries to create root document

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 1.10.3, 1.14.0, 1.8.14
• Component/s: documentmk
• Assignee: Marcel Reutegger
• Reporter: Marcel Reutegger
• Created: 09/Apr/19 12:42
• Updated: 11/Jun/19 10:51
• Resolved: 09/Apr/19 15:23

Description

When connecting a read-only DocumentNodeStore to a DocumentStore with an empty nodes collection, the DocumentNodeStore tries to create the root document. The operation then fails with something like:

Exception in thread "main" org.apache.jackrabbit.oak.plugins.document.DocumentStoreException: Method - createOrUpdate. Params: [nodes, [key: 0:/ new {_deleted.r16a020ebbbf-0-0=SET_MAP_ENTRY false, _commitRoot.r16a020ebbbf-0-0=SET_MAP_ENTRY 0, _modified=MAX 1554812680}]]
        at org.apache.jackrabbit.oak.plugins.document.DocumentStoreException.asDocumentStoreException(DocumentStoreException.java:179)
        at org.apache.jackrabbit.oak.plugins.document.DocumentStoreException.convert(DocumentStoreException.java:131)
        at org.apache.jackrabbit.oak.plugins.document.DocumentStoreException.convert(DocumentStoreException.java:114)
        at org.apache.jackrabbit.oak.plugins.document.Commit.applyToDocumentStore(Commit.java:425)
        at org.apache.jackrabbit.oak.plugins.document.Commit.applyToDocumentStoreWithTiming(Commit.java:280)
        at org.apache.jackrabbit.oak.plugins.document.Commit.applyToDocumentStore(Commit.java:264)
        at org.apache.jackrabbit.oak.plugins.document.DocumentNodeStore.<init>(DocumentNodeStore.java:624)
        at org.apache.jackrabbit.oak.plugins.document.DocumentNodeStoreBuilder.build(DocumentNodeStoreBuilder.java:174)
        at org.apache.jackrabbit.oak.run.ClusterNodesCommand.execute(ClusterNodesCommand.java:65)
        at org.apache.jackrabbit.oak.run.Main.main(Main.java:49)
Caused by: java.lang.UnsupportedOperationException: Method - createOrUpdate. Params: [nodes, [key: 0:/ new {_deleted.r16a020ebbbf-0-0=SET_MAP_ENTRY false, _commitRoot.r16a020ebbbf-0-0=SET_MAP_ENTRY 0, _modified=MAX 1554812680}]]
        at org.apache.jackrabbit.oak.plugins.document.util.ReadOnlyDocumentStoreWrapperFactory$1.invoke(ReadOnlyDocumentStoreWrapperFactory.java:38)
        at com.sun.proxy.$Proxy0.createOrUpdate(Unknown Source)
        at org.apache.jackrabbit.oak.plugins.document.Commit.applyToDocumentStore(Commit.java:365)
        ... 6 more