//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldPerformTruncation() throws Exception
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void ShouldPerformTruncation()
{
// when
// we have a log appended up to appendIndex, and committed somewhere before that
long appendIndex = 5;
long localTermForAllEntries = 1L;
Outcome outcome = mock(typeof(Outcome));
ReadableRaftLog logMock = mock(typeof(ReadableRaftLog));
when(logMock.ReadEntryTerm(anyLong())).thenReturn(localTermForAllEntries); // for simplicity, all entries are at term 1
when(logMock.AppendIndex()).thenReturn(appendIndex);
ReadableRaftState state = mock(typeof(ReadableRaftState));
when(state.EntryLog()).thenReturn(logMock);
when(state.CommitIndex()).thenReturn(appendIndex - 3);
// when
// the leader asks to append after the commit index an entry that mismatches on term
Appending.HandleAppendEntriesRequest(state, outcome, new Org.Neo4j.causalclustering.core.consensus.RaftMessages_AppendEntries_Request(_aMember, localTermForAllEntries, appendIndex - 2, localTermForAllEntries, new RaftLogEntry[] { new RaftLogEntry(localTermForAllEntries + 1, ReplicatedInteger.valueOf(2)) }, appendIndex + 3), NullLog.Instance);
// then
// we must produce a TruncateLogCommand at the earliest mismatching index
verify(outcome, times(1)).addLogCommand(argThat(new LogCommandMatcher(appendIndex - 1)));
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldNotAllowTruncationAtCommit() throws Exception
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void ShouldNotAllowTruncationAtCommit()
{
// given
long commitIndex = 5;
long localTermForAllEntries = 1L;
Outcome outcome = mock(typeof(Outcome));
ReadableRaftLog logMock = mock(typeof(ReadableRaftLog));
when(logMock.ReadEntryTerm(anyLong())).thenReturn(localTermForAllEntries); // for simplicity, all entries are at term 1
when(logMock.AppendIndex()).thenReturn(commitIndex);
ReadableRaftState state = mock(typeof(ReadableRaftState));
when(state.EntryLog()).thenReturn(logMock);
when(state.CommitIndex()).thenReturn(commitIndex);
// when - then
try
{
Appending.HandleAppendEntriesRequest(state, outcome, new Org.Neo4j.causalclustering.core.consensus.RaftMessages_AppendEntries_Request(_aMember, localTermForAllEntries, commitIndex - 1, localTermForAllEntries, new RaftLogEntry[] { new RaftLogEntry(localTermForAllEntries + 1, ReplicatedInteger.valueOf(2)) }, commitIndex + 3), NullLog.Instance);
fail("Appending should not allow truncation at or before the commit index");
}
catch (System.InvalidOperationException)
{
// ok
}
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldNotAttemptToTruncateAtIndexBeforeTheLogPrevIndex() throws Exception
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void ShouldNotAttemptToTruncateAtIndexBeforeTheLogPrevIndex()
{
// given
// a log with prevIndex and prevTerm set
ReadableRaftLog logMock = mock(typeof(ReadableRaftLog));
long prevIndex = 5;
long prevTerm = 5;
when(logMock.PrevIndex()).thenReturn(prevIndex);
when(logMock.ReadEntryTerm(prevIndex)).thenReturn(prevTerm);
// and which also properly returns -1 as the term for an unknown entry, in this case prevIndex - 2
when(logMock.ReadEntryTerm(prevIndex - 2)).thenReturn(-1L);
// also, a state with a given commitIndex, obviously ahead of prevIndex
long commitIndex = 10;
ReadableRaftState state = mock(typeof(ReadableRaftState));
when(state.EntryLog()).thenReturn(logMock);
when(state.CommitIndex()).thenReturn(commitIndex);
// which is also the append index
when(logMock.AppendIndex()).thenReturn(commitIndex);
// when
// an appendEntriesRequest arrives for appending entries before the prevIndex (for whatever reason)
Outcome outcome = mock(typeof(Outcome));
Appending.HandleAppendEntriesRequest(state, outcome, new Org.Neo4j.causalclustering.core.consensus.RaftMessages_AppendEntries_Request(_aMember, prevTerm, prevIndex - 2, prevTerm, new RaftLogEntry[] { new RaftLogEntry(prevTerm, ReplicatedInteger.valueOf(2)) }, commitIndex + 3), NullLog.Instance);
// then
// there should be no truncate commands. Actually, the whole thing should be a no op
verify(outcome, never()).addLogCommand(any());
}
internal CatchupGoal(ReadableRaftLog raftLog, Clock clock, long electionTimeout)
{
this._raftLog = raftLog;
this._clock = clock;
this._electionTimeout = electionTimeout;
this._targetIndex = raftLog.AppendIndex();
this._startTime = clock.millis();
this._roundCount = 1;
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: public ComparableRaftLog(org.neo4j.causalclustering.core.consensus.log.ReadableRaftLog raftLog) throws java.io.IOException
public ComparableRaftLog(ReadableRaftLog raftLog)
{
using (RaftLogCursor cursor = raftLog.GetEntryCursor(0))
{
while (cursor.Next())
{
Append(cursor.get());
}
}
}
internal CatchupGoalTracker(ReadableRaftLog raftLog, Clock clock, long roundTimeout, long catchupTimeout)
{
this._raftLog = raftLog;
this._clock = clock;
this._roundTimeout = roundTimeout;
this._catchupTimeout = catchupTimeout;
this._targetIndex = raftLog.AppendIndex();
this._startTime = clock.millis();
this._roundStartTime = clock.millis();
this._roundCount = 1;
}
internal RaftLogShipper(Outbound <MemberId, Org.Neo4j.causalclustering.core.consensus.RaftMessages_RaftMessage> outbound, LogProvider logProvider, ReadableRaftLog raftLog, Clock clock, TimerService timerService, MemberId leader, MemberId follower, long leaderTerm, long leaderCommit, long retryTimeMillis, int catchupBatchSize, int maxAllowedShippingLag, InFlightCache inFlightCache)
{
this._outbound = outbound;
this._timerService = timerService;
this._catchupBatchSize = catchupBatchSize;
this._maxAllowedShippingLag = maxAllowedShippingLag;
this._log = logProvider.getLog(this.GetType());
this._raftLog = raftLog;
this._clock = clock;
this._follower = follower;
this._leader = leader;
this._retryTimeMillis = retryTimeMillis;
this._lastLeaderContext = new LeaderContext(leaderTerm, leaderCommit);
this._inFlightCache = inFlightCache;
}
public InFlightLogEntryReader(ReadableRaftLog raftLog, InFlightCache inFlightCache, bool pruneAfterRead)
{
this._raftLog = raftLog;
this._inFlightCache = inFlightCache;
this._pruneAfterRead = pruneAfterRead;
}
