Improve FutureUtils.get exception handling (#50339) #50417
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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.
henningandersen
added
>non-issue
:Distributed/Recovery
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Pinging @elastic/es-distributed (:Distributed/Recovery) |
Since ElasticsearchException.guessRootCause does not support wrapped non-ElasticsearchException, this causes a test failure in 7.x.
henningandersen
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Dec 30, 2019
ElasticsearchException.guessRootCauses would return wrapper exception if inner exception was not an ElasticsearchException. Fixed to never return wrapper exceptions. Relates elastic#50417
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@elasticmachine run elasticsearch-ci/2 |
henningandersen
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Jan 3, 2020
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.
henningandersen
added a commit
that referenced
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Jan 8, 2020
ElasticsearchException.guessRootCauses would return wrapper exception if inner exception was not an ElasticsearchException. Fixed to never return wrapper exceptions. At least following APIs change root_cause.0.type as a result: _update with bad script _index with bad pipeline Relates #50417
henningandersen
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to henningandersen/elasticsearch
that referenced
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Jan 8, 2020
ElasticsearchException.guessRootCauses would return wrapper exception if inner exception was not an ElasticsearchException. Fixed to never return wrapper exceptions. At least following APIs change root_cause.0.type as a result: _update with bad script _index with bad pipeline Relates elastic#50417
henningandersen
added a commit
that referenced
this pull request
Jan 8, 2020
ElasticsearchException.guessRootCauses would return wrapper exception if inner exception was not an ElasticsearchException. Fixed to never return wrapper exceptions. At least following APIs change root_cause.0.type as a result: _update with bad script _index with bad pipeline Relates #50417
henningandersen
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to henningandersen/elasticsearch
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Jan 8, 2020
Removed workaround for guessRootCauses returning wrapper. Relates elastic#50525 and elastic#50417
SivagurunathanV
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Jan 23, 2020
ElasticsearchException.guessRootCauses would return wrapper exception if inner exception was not an ElasticsearchException. Fixed to never return wrapper exceptions. At least following APIs change root_cause.0.type as a result: _update with bad script _index with bad pipeline Relates elastic#50417
This was referenced Feb 3, 2020
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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.