tl;dr
If someone is shitting blocks like a machine gun and network diff is not able to catch up, so blocks still come out in 1 sec periods between them
pool is not able to make all its work and stops working
TODO;
re-target diff from block to block in good way.
The difficulty or speed of blocks is not related to the 'transaction too large' error you get.
A 'transaction too large' error is when you have too many inputs that make up a transaction, causing a transaction that is too large (in bytes). You can solve this by combining the inputs by sending it to a new address.
See here for more information:
http://bitcoin.stackexchange.com/questions/37172/transaction-too-large-error
https://bitcoin.stackexchange.com/questions/5583/how-can-i-combine-all-the-tiny-amounts-ive-received-to-minimise-transaction-fee
Thanks for trying to help, but this is not exactly "Transaction too large" but "Transaction too large for fee policy" error, which is quite different story.
In other coin pool I was easy able to make single transactions of 20k coins made of many parts of which no single one was bigger than 15 coins, with few screens of tx moving thru the screen.
Here I can't make payout of 40 from 40*1coin, where 1 coin is full block reward :-D
Still, transactions as big as 10 coins go out without problem. For me it is more this coin wallet transaction limit,
what I just confirmed by manually sending 100 coins, with result:
.
marek@vps68798:~/.QubitCoin$ ./qubitcoin-cli sendtoaddress GUBxdJx6iqBDxuWVHhZ2CbzZu5dmzCt5Ve 50
error: {"code":-4,"message":"Transaction too large for fee policy"}
marek@vps68798:~/.QubitCoin$ ./qubitcoin-cli sendtoaddress GUBxdJx6iqBDxuWVHhZ2CbzZu5dmzCt5Ve 40
error: {"code":-4,"message":"Transaction too large for fee policy"}
marek@vps68798:~/.QubitCoin$ ./qubitcoin-cli sendtoaddress GUBxdJx6iqBDxuWVHhZ2CbzZu5dmzCt5Ve 30
error: {"code":-4,"message":"Transaction too large for fee policy"}
marek@vps68798:~/.QubitCoin$ ./qubitcoin-cli sendtoaddress GUBxdJx6iqBDxuWVHhZ2CbzZu5dmzCt5Ve 20
error: {"code":-4,"message":"Transaction too large for fee policy"}
marek@vps68798:~/.QubitCoin$ ./qubitcoin-cli sendtoaddress GUBxdJx6iqBDxuWVHhZ2CbzZu5dmzCt5Ve 15
error: {"code":-4,"message":"Transaction too large for fee policy"}
marek@vps68798:~/.QubitCoin$ ./qubitcoin-cli sendtoaddress GUBxdJx6iqBDxuWVHhZ2CbzZu5dmzCt5Ve 14
error: {"code":-4,"message":"Transaction too large for fee policy"}
marek@vps68798:~/.QubitCoin$ ./qubitcoin-cli sendtoaddress GUBxdJx6iqBDxuWVHhZ2CbzZu5dmzCt5Ve 13
error: {"code":-4,"message":"Transaction too large for fee policy"}
marek@vps68798:~/.QubitCoin$ ./qubitcoin-cli sendtoaddress GUBxdJx6iqBDxuWVHhZ2CbzZu5dmzCt5Ve 12
c6c3cb34c59d7372bee5c733025c315dd45b563f45640bd1df4c431d682463a6
I'm also even more worried about other error E0005, which stops payouts in 1st place, and occurs, as I said, when new blocks start to flood wallet.