Backward sync exception improvements #4092
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Signed-off-by: Fabio Di Fabio <fabio.difabio@consensys.net>
Signed-off-by: Fabio Di Fabio <fabio.difabio@consensys.net>
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| @@ -165,7 +165,13 @@ public JsonRpcResponse syncResponse(final JsonRpcRequestContext requestContext) | |||
| new Block(newBlockHeader, new BlockBody(transactions, Collections.emptyList())); | |||
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| if (mergeContext.isSyncing() || parentHeader.isEmpty()) { | |||
| mergeCoordinator.appendNewPayloadToSync(block); | |||
| mergeCoordinator | |||
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Should this be part of this PR? Is this related to BWSync?
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The idea is to log also the not recoverable backward sync exceptions, and to do that closest possible to where the sync was invoked, and possibly do other actions in case of these exceptions.
So it related to backward sync since the exception is triggered there, but no problem for me to move it to a separate PR if you think it does not belong here.
Signed-off-by: Fabio Di Fabio <fabio.difabio@consensys.net>
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* Remove backward sync exception recursive nesting Signed-off-by: Fabio Di Fabio <fabio.difabio@consensys.net>
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* Remove backward sync exception recursive nesting Signed-off-by: Fabio Di Fabio <fabio.difabio@consensys.net> Signed-off-by: Cody Born <codyborn@outlook.com>
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* Remove backward sync exception recursive nesting Signed-off-by: Fabio Di Fabio <fabio.difabio@consensys.net>
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Signed-off-by: Fabio Di Fabio fabio.difabio@consensys.net
PR description
During the investigation of a Hive test that triggers backward sync, found some improvements that could be applied to backward sync exceptions.
Remove of recoursive exceptions nesting, that produces monster exception like this one
deeply-nested-exception.txt
Avoid to return
nullfromsyncBackwardsUntilmethods in case the block is already trustedLog a warning for backward sync exception that are not recoverable, likewise it is already done for recoverable exceptions
Rephrase the error messages when there is a validator error found during the backward sync, with the assumption that the child block is the invalid one, and the parent is correct, this makes clearer the error message for the Hive test
Fixed Issue(s)
Documentation
doc-change-requiredlabel to this PR ifupdates are required.
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