TEZ-1029. Fetcher can fail to report input failed event upon connection error (bikas)
TEZ-1028. Handle killed tasks and attempts when handling recovery data. (hitesh)
TEZ-1030. Address intermittent errors created due to race condition in YARN-1915.
BUG-16326. Some HiveServer2 e2e tests on secure tez Ambari installed cluster are failing with error "Illegal client-token!"

Internal commit only. This is a hack as actual fix is needed in YARN.