Function of awaitGraphIndexStatus()

[Hui Cao]

Hi guys, 

I am currently using Solr as the index engine for Titan, after I created the index using the command

mgmt.buildIndex('nameAndAge',Vertex.class).addKey(pkeyName).addKey(pkeyAge).buildMixedIndex("search")

then I run the following command

mgmt.awaitGraphIndexStatus(graph, "nameAndAge").call()

which has inconsistent results, sometimes it returns 

GraphIndexStatusReport[success=false, indexName='nameAndAge', targetStatus=REGISTERED, notConverged={name=INSTALLED, age=INSTALLED}, converged={}, elapsed=PT1M0.182S]

where success=false

while other times I see it returns success=true

I am wondering what does this command do? what are the results mean, does "success=false" means that I could not use the index? 

Thanks