chore(server): Add more logging in case of check fail

Author: romange

src/server/engine_shard_set.cc

@@ -135,14 +135,15 @@ void EngineShard::DestroyThreadLocal() {
 // Is called by Transaction::ExecuteAsync in order to run transaction tasks.
 // Only runs in its own thread.
 void EngineShard::PollExecution(const char* context, Transaction* trans) {
- VLOG(2) << "PollExecution " << context << " " << (trans ? trans->DebugId() : "")
- << " " << txq_.size() << " " << continuation_trans_;
+ VLOG(2) << "PollExecution " << context << " " << (trans ? trans->DebugId() : "") << " "
+ << txq_.size() << " " << continuation_trans_;
 
  ShardId sid = shard_id();
 
  uint16_t trans_mask = trans ? trans->GetLocalMask(sid) : 0;
  if (trans_mask & Transaction::AWAKED_Q) {
- DCHECK(continuation_trans_ == nullptr);
+ DCHECK(continuation_trans_ == nullptr)
+ << continuation_trans_->DebugId() << " when polling " << trans->DebugId();
 
  CHECK_EQ(committed_txid_, trans->notify_txid());
  bool keep = trans->RunInShard(this);