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fix(list): Fixes blpop failure. (#462)

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The bug was that if two push operations where queued together in the tx queue,
and the first push awakes pending blpop, then the PollExecution function would continue with the
second push before switching to blpop, which contradicts the spec.

Signed-off-by: Roman Gershman <roman@dragonflydb.io>
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Roman Gershman 2022-11-05 14:43:11 +02:00 • committed by GitHub
parent d95de3347a
commit 2b87088121
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3 changed files with 51 additions and 6 deletions
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3
src/server/transaction.cc
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@ -1137,7 +1137,8 @@ bool Transaction::NotifySuspended(TxId committed_txid, ShardId sid) {
return false;
}
DVLOG(1) << "NotifySuspended " << DebugId() << ", local_mask:" << local_mask;
DVLOG(1) << "NotifySuspended " << DebugId() << ", local_mask:" << local_mask
<< " by " << committed_txid;
// local_mask could be awaked (i.e. not suspended) if the transaction has been
// awakened by another key or awakened by the same key multiple times.