[ZOOKEEPER-1343] getEpochToPropose should check if lastAcceptedEpoch is greater or equal than epoch

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 3.4.0
• Fix Version/s: 3.4.3, 3.5.0
• Hadoop Flags: Reviewed
• Assignee: Flavio Paiva Junqueira
• Reporter: Flavio Paiva Junqueira
• Created: 23/Dec/11 12:44
• Updated: 09/Jan/12 22:50
• Resolved: 04/Jan/12 00:28

Description

The following block in Leader.getEpochToPropose:

if (lastAcceptedEpoch > epoch) {
	epoch = lastAcceptedEpoch+1;
}

needs to be fixed, since it doesn't increment the epoch variable in the case epoch != -1 (initial value) and lastAcceptedEpoch is equal. The fix trivial and corresponds to changing > with >=.