Questions tagged [mempool]

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Purge the mempool of low-fee transactions?

Is there any way to purge the tezos-node mempool of transactions whose fees are too low? I'm playing with making my own wallet and I sometimes send poorly-constructed transactions to my tezos-node, ...
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1answer
66 views

Is it possible to chain transactions from an orbitary account in a single block

In most blockchains, it's possible to chain several outgoing transactions for an account. In Tezos we've tried to do the same, but got errors like: Netezos.Rpc.InternalErrorException: [{"kind&...
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1answer
60 views

Does an operation in the mempool expire after 60 or 64 blocks?

Ive seen some conflicting answers saying 64 blocks or 60 blocks thanks
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1answer
143 views

Stuck transaction for more than 12 hours

i tried sending my funds from trezor Simple Staking wallet to the exchange, and it seems that the transaction is stuck. i tried many recommendations online such as increasing the transaction fee but ...
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1answer
281 views

stuck transaction error: Pre-validation error

I was trying to send a transaction from my Trezor SimplyStaking wallet over 5 hours ago and seem to get an error. at the tzkt explorer, it says the following errors Status Branch refused Pre-...
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1answer
38 views

What causes /mempool/monitor_operations to exit?

When I run curl http://127.0.0.1:8732/mempool/monitor_operations, the mempool contents are printed to the screen, and more data is printed as more operations come into the mempool (ie: stream of data) ...
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1answer
70 views

Why won't transaction propagate to other nodes?

I've got a transaction where I've already signed bytes and am ready to inject the operation. If I inject it to my local node, I can see the txn in my nodes' mempool. But if I query another node, say ...
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1answer
96 views

Tezos transactions life-time in mempool

Before a transactions get rejected from the mempool. What is the max of life-time of a transaction in the mempool?
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1answer
114 views

What are the bounds / restrictions on the mempool?

While consulting documentation on the prevalidator, it describes portions of the mempool as bounded sets: For instance, in Alpha, contracts have counters, and operations with counters in the future ...
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1answer
124 views

Missing more blocks than normal (Fitness/Mempool issue)

I've been told this could be a connectivity issue, but I highly doubt that's the issue. Any help would be greatly appreciated. This is not your random block missed issue. I miss about 1/3-1/4 blocks I ...
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1answer
132 views

transaction rejected by the mempool pre filter

I'm trying to broadcast this operation. The first reveal operation went fine. Now with this one: { amount: "1000000" counter: "1179510" destination: "tz1......" fee: "1273" gas_limit: "...
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1answer
34 views

Local operations vs remote operation

Are local operations (one's received from local client) treated differently from remote operations (one's received from peer) during mempool management? Are they given higher priority are included ...
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1answer
63 views

How are Smart Contracts saved for checking in future?

Am I understanding correctly, that I can store for example my rental contract as a Smart Contract and then it is made official with baking it with bakers? If I got the first part right, the contract ...
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1answer
354 views

What is the mempool

I have seen a lot of comments and questions that mention the Tezos mempool, however I have not seen a clear and concise description of what the mempool is. A complete answer should cover the ...
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375 views

Access to the mempool

Is there a way to access to the mempool through RPC API? And is there a way to manipulate the mempool from the outside?
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1answer
294 views

How does Tezos manage its mempool?

I heard from @ArthurB that mempool management is one of the core aspects of developing a new blockchain. This in turn is impacted by the choice of how to represent balances in the chain, namely UTXO ...
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2answers
143 views

Max lifetime of transactions in mempool?

If a transaction sits a long time in the tezos mempool for a reason or another does it get eventually cleaned-up or will it stay there forever ?
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119 views

How do baking node choose the transactions from the mempool

Could someone describe how the full node chooses transactions from the mempool that make it into a block. I suppose there must be some logic that makes a compromise between fees and gas cost but it ...
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1answer
78 views

Mempool management

What are the considerations that came into play when choosing the design of the Tezos mempool management ? Arthur has made a number of remarks on that topic in some video dev updates but I would ...