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Account for Skipped Slots When Requesting for Blocks #4130

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merged 3 commits into from
Nov 27, 2019

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nisdas
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@nisdas nisdas commented Nov 27, 2019

Resolves #4041

Before sending out a new request, we check if the start slot of the request is higher than the finalized epoch. We also include potential skipped slots in our check.

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codecov bot commented Nov 27, 2019

Codecov Report

Merging #4130 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff           @@
##           master   #4130   +/-   ##
======================================
  Coverage    6.44%   6.44%           
======================================
  Files         171     171           
  Lines       11022   11022           
======================================
  Hits          710     710           
  Misses      10204   10204           
  Partials      108     108

prestonvanloon
prestonvanloon previously approved these changes Nov 27, 2019
rauljordan
rauljordan previously approved these changes Nov 27, 2019
beacon-chain/sync/initial-sync/round_robin.go Outdated Show resolved Hide resolved
@rauljordan rauljordan dismissed stale reviews from prestonvanloon and themself via b549a34 November 27, 2019 16:27
@rauljordan rauljordan merged commit 80865ff into master Nov 27, 2019
@rauljordan rauljordan deleted the handleEmptyBlocks branch November 27, 2019 17:18
@@ -84,7 +84,7 @@ func (s *InitialSync) roundRobinSync(genesis time.Time) error {

// Short circuit start far exceeding the highest finalized epoch in some infinite loop.
if start > helpers.StartSlot(highestFinalizedEpoch()+1) {
return nil, errors.New("attempted to ask for a start slot greater than the next highest epoch")
return nil, errors.Errorf("attempted to ask for a start slot of %d which is greater than the next highest epoch of %d", start, helpers.StartSlot(highestFinalizedEpoch()+1))
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Start slot is not correct here. This log doesn’t make sense as is

prestonvanloon added a commit that referenced this pull request Nov 27, 2019
prylabs-bulldozer bot pushed a commit that referenced this pull request Nov 27, 2019
* fix log message from PR #4130
* Merge refs/heads/master into fix-log-2
cryptomental pushed a commit to cryptomental/prysm that referenced this pull request Feb 24, 2020
)

* add check

* Update beacon-chain/sync/initial-sync/round_robin.go
cryptomental pushed a commit to cryptomental/prysm that referenced this pull request Feb 24, 2020
* fix log message from PR prysmaticlabs#4130
* Merge refs/heads/master into fix-log-2
cryptomental pushed a commit to cryptomental/prysm that referenced this pull request Feb 28, 2020
)

* add check

* Update beacon-chain/sync/initial-sync/round_robin.go
cryptomental pushed a commit to cryptomental/prysm that referenced this pull request Feb 28, 2020
* fix log message from PR prysmaticlabs#4130
* Merge refs/heads/master into fix-log-2
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Sync panic: attempted to ask for a start slot greater than the next highest epoch
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