Receiving erro r'Request size is too large' when querying Cosmos DB.

While running a query against my database and getting a 'Request size is too large' while iterating through the results:

The query is 'select c.id, c.snippet.channelId from c where (c.kind = 'youtube#channel' or c.kind = 'youtube#video') and c.statistics.commentCount > 0'

Stack Trace:

java.util.concurrent.ExecutionException: java.lang.IllegalStateException: com.microsoft.azure.documentdb.DocumentClientException: {'Errors':['Request size is too large']}
ActivityId: 00000000-0000-0000-0000-000000000000, Request URI: //, StatusCode: RequestEntityTooLarge, SubStatusCode:
at java.util.concurrent.FutureTask.report(FutureTask.java:122)
at java.util.concurrent.FutureTask.get(FutureTask.java:192)
at com.affinio.work.Worker$class.waitUntilDone(Worker.scala:51)
at com.affinio.scanner.CommentScan$.waitUntilDone(CommentScan.scala:11)
at com.affinio.work.Worker$class.cleanUp(Worker.scala:87)
at com.affinio.scanner.CommentScan$.com$affinio$reader$Reader$$super$cleanUp(CommentScan.scala:11)
at com.affinio.reader.Reader$class.cleanUp(Reader.scala:147)
at com.affinio.scanner.CommentScan$.cleanUp(CommentScan.scala:11)
at com.affinio.work.Worker$class.main(Worker.scala:105)
at com.affinio.scanner.CommentScan$.main(CommentScan.scala:11)
at com.affinio.scanner.CommentScan.main(CommentScan.scala)
Caused by: java.lang.IllegalStateException: com.microsoft.azure.documentdb.DocumentClientException: {'Errors':['Request size is too large']}

Once the item is already on the database the error should not be related to document size.

Start by reproducing the provided Cosmos DB query while iterating through results and compare the failure with the stack trace through Worker.scala, CommentScan.scala, and Reader.scala. Determine why an existing database item produces RequestEntityTooLarge, then make the error reproducible and verify that the query completes without the request-size failure.

Written by the indexing model from the issue text.