Details
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Sub-task
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Status: Closed
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Major
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Resolution: Fixed
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None
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None
Description
When GEODE-3928 is complete, we will have a process to index existing data in a region when a lucene index is added. That process may take some time. While indexing is going on queries should not block for a long period of time or return incorrect results. Instead the query should throw an exception indicating that the index does not exist/is not built yet.
Acceptance:
Queries executed while indexing is going on throw an exception, rather than blocking or returning incorrect results.
Implementation Details:
GEODE-3928 is about modifying computeRepository to actually do the indexing. Queries also call compute repository, so they will block until computeRepository is done.
To avoid blocking, we can make computeRepo to return an IndexRepository in an "building" state. That index repo could contain an asynchronous task that is actually indexing the data. Until the asynchronous task is complete, the IndexRepostory could throw exceptions from query operations. This has the advantage of making sure that whenever computeRepository is called, we always at least start or make sure there is a task running to index the data.
