How long will a tx sit on mempool ?

[blacksowhat]

so used the shitty blockchain wallet to send a transaction .. appearently the transaction was so big that it was double spent back to me ... now i cant use all the inputs until this tx is cleared out of pool .. can someone tell me how long will this tx stay in the pool ?

Heres the tx : https://blockchain.info/address/1mwWTvFMvN75NptkTu9dJ8EKF44tPVocW

and also why would a big transaction be autometically double spend . This is the first time that has happened to me ..

a satisfying answer will get a donation of 200000 satoshis.. so please leave your address as well

[Jhanzo]

so used the shitty blockchain wallet to send a transaction .. appearently the transaction was so big that it was double spent back to me ... now i cant use all the inputs until this tx is cleared out of pool .. can someone tell me how long will this tx stay in the pool ?

Heres the tx : https://blockchain.info/address/1mwWTvFMvN75NptkTu9dJ8EKF44tPVocW

and also why would a big transaction be autometically double spend . This is the first time that has happened to me ..

a satisfying answer will get a donation of 200000 satoshis.. so please leave your address as well

That's an address, not a transaction.  And that address only have confirmed transactions that will never be dropped because they're already part of the blockchain.

If you're having problems with unable to spend from your blockchain.info wallet, contact their support.  We can't do anything.

There's no such thing as "automatically double spend" for big transactions.

Edit:
https://blockchain.info/tx/4a0d79006d843c8121ac5ddffe9b335f27505653fe8680eca97986237b4a26f9
Blockchain.info is not showing that transaction in the transaction history of the address posted.

That transaction will be dropped within 72 hours provided that no one else rebroadcast it and the unconfirmed input which is the source of the double spend problem.

[Decoded]

A transaction will stay in the mempool for 48-72 hours, but depending on the node configurstion, it can be longer or shorter.

It looks like the address you have received 0.49 btc and then a couple of hours later, sent it away. Not very "instant" to me...

[Jhanzo]

Looks like both transactions have been dropped already.  You can lock the thread if you don't have any more problem, OP.