Quote from: Uniex on September 09, 2018, 09:22:48 AM

I send a transaction via bitcoind configured with txconfirmtarget=1,
even if those parameter I dont get confirmed even in 30 minutes ?

txconfirmtarget=X guesses the required fee to get your TX included within the next X blocks.
While blocks are generated at a rate of 6 per hour, this is just an average value.

The time between two blocks can differ between a few seconds to multiple hours. You are never guaranteed to get a confirmation within Y minutes.

Quote from: Uniex on September 09, 2018, 09:22:48 AM

Fee size is OK

Quote

Fee per byte 19.329 sat/B

Actually the fee is pretty high.
I would suggest to visit https://jochen-hoenicke.de/queue/#1,8h to check the current status of the mempool.

If you need it to confirm as fast as possible during such spikes, such a fee unfortunately is necessary.
But if you can wait 2-3 blocks, 2 sat/B would have been enough (thats ~1/20 of your current fee).