Arvados

I'm seeing a lot of this in the logs of production keep servers:

2015-08-14_18:41:17.23735 2015/08/14 18:41:17 [10.XX.XX.XX:55083] GET status.json 0.000731s 200 3981 "OK" 
2015-08-14_18:41:17.27110 2015/08/14 18:41:17 http: multiple response.WriteHeader calls
2015-08-14_18:41:17.27112 2015/08/14 18:41:17 [10.XX.XX.XX:55083] GET index 0.033062s 500 135237 "write tcp 10.XX.XX.XX:55083: connection reset by peer" 

Note that the index call also seems to return a 500.

This appears to be related to data manager: when I kept seeing the above in the logs, data manager kept asking this keep server for an index, and then abort because it couldn't reach another keep server, and then restart, rinse and repeat.