[RATIS-475] [Log Service] Writing data from Log Stream failing with IllegalStateException

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.3.0
• Component/s: LogService
• Assignee: Rajeshbabu Chintaguntla
• Reporter: Rajeshbabu Chintaguntla
• Created: 24/Jan/19 16:36
• Updated: 28/Mar/19 14:22
• Resolved: 27/Mar/19 20:11

Description

Written an app to create multiple logs and write data to the logs. At some point of time writing to log failing with following error.

2019-01-24 22:09:04 ERROR RaftServerImpl:1119 - localhost_9951: applyTransaction failed for index:1 proto:(t:1, i:1), STATEMACHINELOGENTRY, client-DE592625D102, cid=11
2019-01-24 22:09:04 ERROR StateMachineUpdater:133 - Terminating with exit status 2: StateMachineUpdater-localhost_9951: the StateMachineUpdater hits Throwable
java.lang.IllegalStateException: localhost_9951: Failed updateLastAppliedTermIndex: newTI = (t:1, i:1) < oldTI = (t:1, i:7)
	at org.apache.ratis.util.Preconditions.assertTrue(Preconditions.java:72)
	at org.apache.ratis.statemachine.impl.BaseStateMachine.updateLastAppliedTermIndex(BaseStateMachine.java:116)
	at org.apache.ratis.logservice.server.LogStateMachine.processAppendRequest(LogStateMachine.java:324)
	at org.apache.ratis.logservice.server.LogStateMachine.applyTransaction(LogStateMachine.java:356)
	at org.apache.ratis.server.impl.RaftServerImpl.applyLogToStateMachine(RaftServerImpl.java:1116)
	at org.apache.ratis.server.impl.StateMachineUpdater.run(StateMachineUpdater.java:169)
	at java.lang.Thread.run(Thread.java:745)

Getting this error just after writing few entries.