lukasz-antoniak commented on code in PR #340:
URL: https://github.com/apache/cassandra-sidecar/pull/340#discussion_r3161663352


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server/src/main/java/org/apache/cassandra/sidecar/handlers/KeyspaceSchemaHandler.java:
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Review Comment:
   `driverUnsupportedSchemaCache.getFullSchema()` will block only if we do not 
have schema initialised at least once. To prevent "first request" latency, we 
load the schema as soon as CQL connection is established (see 
`ConfigurationModule`). My purpose was to change as little code as possible due 
to this workaround. I had a version to do CQL lookup on non-event loop thread, 
but then I had to change complete `handleWithMetadata` method. What do you 
think?



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