Unable to reindex titan 1.0.0 mixed index after adding existed property to it

Question

I am using Titan 1.0.0 with cassandra backend and elasticsearch as index. I have user vertices with configured properties (userId, email, fullName... etc). Some of those properties are configured as mixed index in elasticsearch. Now I want to add an existed property (e.g. a previously configured property that was not included in the mixed index before) to the mixed index using:

 TitanManagement tm = graph.openManagement();
 tm.addIndexKey(tm.getGraphIndex("users"), tm.getPropertyKey("age"));
 tm.commit();

From now additional "age" property mapping is added to the elasticsearch. Each update of the "age" property of a user vertex add an "age" field to the elasticserch document. However in order to use this index properly in titan queries I must reindex my mixed graph index. At this point my problem starts. Referred to titan documentation, I need to do the following steps (using Gremlin):

import com.thinkaurelius.titan.graphdb.database.management.ManagementSystem

// Rollback or commit transactions on the graph which predate the index definition
graph.tx().rollback()

// Block until the SchemaStatus transitions from INSTALLED to REGISTERED
ManagementSystem.awaitGraphIndexStatus(graph, "users")
    .status(SchemaStatus.REGISTERED)
    .timeout(10, ChronoUnit.MINUTES) // set timeout to 10
    .call()

After 10 minute timeout the answer that was received:

==>GraphIndexStatusReport[success=false, indexName='users', targetStatus=REGISTERED,
   notConverged={age=INSTALLED, fullName=ENABLED, userId=ENABLED,
   userRegisterDate=ENABLED, userGender=ENABLED, email=ENABLED},
   converged={}, elapsed=PT10M0.173S]

And now, if I try to reindex as follows:

tm = graph.openManagement()
tm.updateIndex(tm.getGraphIndex("users"), SchemaAction.REINDEX).get()
tm.commit()

I receive the error:

WARN  com.thinkaurelius.titan.graphdb.olap.job.IndexRepairJob  - Index users has key age in an invalid status INSTALLED
ERROR com.thinkaurelius.titan.diskstorage.keycolumnvalue.scan.StandardScannerExecutor  - Exception trying to setup the job:
com.thinkaurelius.titan.core.TitanException: The index users is in an invalid state and cannot be indexed. The following index keys have invalid status: age has status INSTALLED (status must be one of [REGISTERED, ENABLED])

Any ideas what I am doing wrong?

Answer 1

You can't add a new property to an existing index. Check docs.