Cryptsy DRKBTC chart has been stuck for quite a while now
It seems Cryptsy has changed their timezone again.
--UPDATE--
The API returns nothing for drkbtc and others pairs. It should not be timezone issue. at least dogebtc works though it returns glitch data some time.
DOGE/BTC and DRK/BTC uses same entry. that's quite strange for DOGE/BTC works but DRK/BTC does not work totally.
--UPDATE at 15:55 GMT --
The time must be broken once. The repeated trades is found obviously in some cold market such as VTC/BTC QRK/BTC.
I see.
The last trade is in the future with incorrect date. For example, the last trade of DRK/BTC in our database is 2014-05-24 03:19 GMT. All trades is ignored before 2014-05-24 03:19, so the trades is not refreshed anymore.
After trying fix the issue, with current Cryptsy API we used, It could not be avoided. because the tid is based on timestamp. Exchange should keep the time and data always correct. So finally only roughly remove all data between 2014-05-22 22:00:00 to 2014-05-24 18:00:00
Also tried their authorized API which provide tid and low lag. Unfortunately it has nonce parameter which must be in ascend, it is conflict with the way extract the data in parallel. It will reduce the speed to 1/8.