import java.util.concurrent.TimeUnit;
import org.opendaylight.controller.cluster.raft.ClientRequestTracker;
import org.opendaylight.controller.cluster.raft.RaftActorContext;
+import org.opendaylight.controller.cluster.raft.RaftState;
import org.opendaylight.controller.cluster.raft.ReplicatedLogEntry;
import org.opendaylight.controller.cluster.raft.SerializationUtils;
-import org.opendaylight.controller.cluster.raft.base.messages.ApplyLogEntries;
+import org.opendaylight.controller.cluster.raft.base.messages.ApplyJournalEntries;
import org.opendaylight.controller.cluster.raft.base.messages.ApplyState;
import org.opendaylight.controller.cluster.raft.base.messages.ElectionTimeout;
import org.opendaylight.controller.cluster.raft.messages.AppendEntries;
private long replicatedToAllIndex = -1;
- protected AbstractRaftActorBehavior(RaftActorContext context) {
+ private final String logName;
+
+ private final RaftState state;
+
+ protected AbstractRaftActorBehavior(RaftActorContext context, RaftState state) {
this.context = context;
+ this.state = state;
this.LOG = context.getLogger();
+
+ logName = String.format("%s (%s)", context.getId(), state);
+ }
+
+ @Override
+ public RaftState state() {
+ return state;
+ }
+
+ public String logName() {
+ return logName;
}
@Override
if (appendEntries.getTerm() < currentTerm()) {
if(LOG.isDebugEnabled()) {
LOG.debug("{}: Cannot append entries because sender term {} is less than {}",
- context.getId(), appendEntries.getTerm(), currentTerm());
+ logName(), appendEntries.getTerm(), currentTerm());
}
sender.tell(
* @param requestVote
* @return
*/
- protected RaftActorBehavior requestVote(ActorRef sender,
- RequestVote requestVote) {
+ protected RaftActorBehavior requestVote(ActorRef sender, RequestVote requestVote) {
- if(LOG.isDebugEnabled()) {
- LOG.debug("{}: Received {}", context.getId(), requestVote);
- }
+ LOG.debug("{}: In requestVote: {}", logName(), requestVote);
boolean grantVote = false;
}
}
- sender.tell(new RequestVoteReply(currentTerm(), grantVote), actor());
+ RequestVoteReply reply = new RequestVoteReply(currentTerm(), grantVote);
+
+ LOG.debug("{}: requestVote returning: {}", logName(), reply);
+
+ sender.tell(reply, actor());
return this;
}
// around as the rest wont be present either
LOG.warn(
"{}: Missing index {} from log. Cannot apply state. Ignoring {} to {}",
- context.getId(), i, i, index);
+ logName(), i, i, index);
break;
}
}
if(LOG.isDebugEnabled()) {
- LOG.debug("{}: Setting last applied to {}", context.getId(), newLastApplied);
+ LOG.debug("{}: Setting last applied to {}", logName(), newLastApplied);
}
context.setLastApplied(newLastApplied);
// will be used during recovery
//in case if the above code throws an error and this message is not sent, it would be fine
// as the append entries received later would initiate add this message to the journal
- actor().tell(new ApplyLogEntries((int) context.getLastApplied()), actor());
+ actor().tell(new ApplyJournalEntries(context.getLastApplied()), actor());
}
protected Object fromSerializableMessage(Object serializable){
}
protected RaftActorBehavior switchBehavior(RaftActorBehavior behavior) {
- LOG.info("{} :- Switching from behavior {} to {}", context.getId(), this.state(), behavior.state());
+ LOG.info("{} :- Switching from behavior {} to {}", logName(), this.state(), behavior.state());
try {
close();
} catch (Exception e) {
- LOG.error("{}: Failed to close behavior : {}", context.getId(), this.state(), e);
+ LOG.error("{}: Failed to close behavior : {}", logName(), this.state(), e);
}
return behavior;
long lastApplied = context.getLastApplied();
long tempMin = Math.min(snapshotCapturedIndex, (lastApplied > -1 ? lastApplied - 1 : -1));
+ if(LOG.isTraceEnabled()) {
+ LOG.trace("{}: performSnapshotWithoutCapture: snapshotCapturedIndex: {}, lastApplied: {}, tempMin: {}",
+ logName, snapshotCapturedIndex, lastApplied, tempMin);
+ }
+
if (tempMin > -1 && context.getReplicatedLog().isPresent(tempMin)) {
+ LOG.debug("{}: fakeSnapshot purging log to {} for term {}", logName(), tempMin,
+ context.getTermInformation().getCurrentTerm());
+
//use the term of the temp-min, since we check for isPresent, entry will not be null
ReplicatedLogEntry entry = context.getReplicatedLog().get(tempMin);
context.getReplicatedLog().snapshotPreCommit(tempMin, entry.getTerm());
context.getReplicatedLog().snapshotCommit();
setReplicatedToAllIndex(tempMin);
+ } else if(tempMin > getReplicatedToAllIndex()) {
+ // It's possible a follower was lagging and an install snapshot advanced its match index past
+ // the current replicatedToAllIndex. Since the follower is now caught up we should advance the
+ // replicatedToAllIndex (to tempMin). The fact that tempMin wasn't found in the log is likely
+ // due to a previous snapshot triggered by the memory threshold exceeded, in that case we
+ // trim the log to the last applied index even if previous entries weren't replicated to all followers.
+ setReplicatedToAllIndex(tempMin);
}
}
+ protected String getId(){
+ return context.getId();
+ }
+
}