218bd19034
FutureUtils.get() would unwrap ElasticsearchWrapperExceptions. This is trappy, since nearly all usages of FutureUtils.get() expected only to not have to deal with checked exceptions. In particular, StepListener builds upon ListenableFuture which uses FutureUtils.get to be informed about the exception passed to onFailure. This had the bad consequence of masking away any exception that was an ElasticsearchWrapperException like RemoteTransportException. Specifically for recovery, this made CircuitBreakerExceptions happening on the target node look like they originated from the source node. The only usage that expected that behaviour was AdapterActionFuture. The unwrap behaviour has been moved to that class. |
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