Bitcoin-QT sent transaction not working or just delay

[speciall]

Hi, Just a little technical question about Bitcoin-QT,

I noticed when I send some coins to gox or bitstamp, that the transaction is only locally in my bitcoin-qt.
There is no transaction showing up in the blockchain. (even not after a night.)

I checked in qt and my fee is zero for this moment (did not know this option)


My question is, is there something broke at my side, and should a transaction that sent some coins appear a immediatly or a few minutes later unconfirmed  in the blockchain? And maybe gets confirmed a few hours later

Or does my bitcoin-qt have to wait on the transaction delay and can only send the transaction to the blockchain after a few hours / days and appears only after a few hours / days in the blockchain?

How exactly can a miner decide to process a transacion or not? is it a setting or is this setting managed by the mining pools and not by the individual miners?

[CIYAM]

If your transaction is not showing up on blockchain.info then it hasn't been broadcast to the network.

Your client will periodically attempt to resend it but if it needs a fee and doesn't have one (possible if your bitcoin-qt isn't up to date) then it simply won't be forwarded by any peer (and therefore will never even make it to a miner).

If this is the case then you could use "pywallet" to remove the offending transaction from your wallet or if you don't think you're up to doing that then you are probably best to ask for someone to help out.

[speciall]

Ok, thank you for the clear explenation.

I was thinking it would appear unconfirmed int the blockchain immediatly and then it would wait to get processed