exception during loading batch data - hadoop druid indexer

Hello,
I get following exception:

java.lang.Exception: com.metamx.common.ISE: WTF?! No bucket found for timestamp: -146136543-09-08T08:23:32.096Z

I don’t know why. My file has only 100 rows, every of them is properly. What shoud I do ?

Whoa that’s crazy. It’s possible your timestamp spec doesn’t match the timestamp format you’re using in your data, and that combined in a weird way with how buckets are handled for BC years. Could you double check that your timestamp spec matches your data?