[GitHub] [incubator-druid] leventov opened a new issue #8445: In DirectDruidClient, Future cancellation listener shouldn't run in HTTP library thread

[GitBox <gi...@apache.org>]

leventov opened a new issue #8445: In DirectDruidClient, Future cancellation listener shouldn't run in HTTP library thread
URL: https://github.com/apache/incubator-druid/issues/8445
 
 
   This `Futures.addCallback()` call:
   
   https://github.com/apache/incubator-druid/blob/984958122b962ab019a590f4fd01792de81b75df/server/src/main/java/org/apache/druid/client/DirectDruidClient.java#L453-L500
   
   Uses `MoreExecutors.sameThreadExecutor()` by default, which leads to canceling query (with waiting for one second) in the HTTP client thread (in `org.apache.druid.java.util.http.client.HttpClient`). This is undesirable because `HttpClient` is an asynchronous client.

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