Avi Kivity 6c71eae63f Merge "API: Stream compaction history records" from Amnon ...

"
get_compaction_history can return a lot of records which will add up to a
big http reply.

This series makes sure it will not create large allocations when
returning the results.

It adds an api to the query_processor to use paged queries with a
consumer function that returns a future, this way we can use the http
stream after each record.

This implementation will prevent large allocations and stalls.

Fixes #4152
"

* 'amnon/compaction_history_stream_v7' of github.com:scylladb/seastar-dev:
  tests/query_processor_test: add query_with_consumer_test
  system_keyspace, api: stream get_compaction_history
  query_processor: query and for_each_cql_result with future

2019-02-05 14:16:36 +02:00

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