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| author | Péter Szilágyi <peterke@gmail.com> | 2015-06-10 17:30:35 +0800 |
|---|---|---|
| committer | Péter Szilágyi <peterke@gmail.com> | 2015-06-11 00:47:59 +0800 |
| commit | 355b1e3bb1c749d8ecb19e967db988a34aa36788 (patch) | |
| tree | fb2abf5932e316d0a352b869add536c01eb0abc8 /eth | |
| parent | b9affbf9fe1ca8e76aef5efdc456a43dff38dc8d (diff) | |
| download | dexon-355b1e3bb1c749d8ecb19e967db988a34aa36788.tar.gz dexon-355b1e3bb1c749d8ecb19e967db988a34aa36788.tar.zst dexon-355b1e3bb1c749d8ecb19e967db988a34aa36788.zip | |
eth: randomly fetch announced block (don't hammer origin)
Diffstat (limited to 'eth')
| -rw-r--r-- | eth/sync.go | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/eth/sync.go b/eth/sync.go index 7a3b5fcd4..7817266f8 100644 --- a/eth/sync.go +++ b/eth/sync.go @@ -127,7 +127,7 @@ func (pm *ProtocolManager) txsyncLoop() { // fetcher is responsible for collecting hash notifications, and periodically // checking all unknown ones and individually fetching them. func (pm *ProtocolManager) fetcher() { - announces := make(map[common.Hash]*blockAnnounce) + announces := make(map[common.Hash][]*blockAnnounce) request := make(map[*peer][]common.Hash) pending := make(map[common.Hash]*blockAnnounce) cycle := time.Tick(notifyCheckCycle) @@ -139,7 +139,7 @@ func (pm *ProtocolManager) fetcher() { // A batch of hashes the notified, schedule them for retrieval glog.V(logger.Debug).Infof("Scheduling %d hash announcements from %s", len(notifications), notifications[0].peer.id) for _, announce := range notifications { - announces[announce.hash] = announce + announces[announce.hash] = append(announces[announce.hash], announce) } case <-cycle: @@ -150,8 +150,9 @@ func (pm *ProtocolManager) fetcher() { } } // Check if any notified blocks failed to arrive - for hash, announce := range announces { - if time.Since(announce.time) > notifyArriveTimeout { + for hash, all := range announces { + if time.Since(all[0].time) > notifyArriveTimeout { + announce := all[rand.Intn(len(all))] if !pm.chainman.HasBlock(hash) { request[announce.peer] = append(request[announce.peer], hash) pending[hash] = announce |