public InstanceSnapshotInfo GetSnapshot(string keyName = null, bool isCompress = true)
{
keyName = this.NormalizeKeyName(keyName);
ExTraceGlobals.StoreReadTracer.TraceDebug <string, string, bool>((long)this.identityHash, "{0}: Entering GetSnapshot - Key: {1} IsCompress: {2}", this.identity, keyName, isCompress);
InstanceSnapshotInfo instanceSnapshotInfo = new InstanceSnapshotInfo
{
FullKeyName = keyName,
RetrievalStartTime = DateTimeOffset.Now
};
int num;
XElement xelementSnapshot = this.GetXElementSnapshot(keyName, out num);
if (xelementSnapshot == null)
{
throw new DxStoreInstanceKeyNotFoundException(keyName);
}
instanceSnapshotInfo.Snapshot = xelementSnapshot.ToString();
if (isCompress)
{
instanceSnapshotInfo.Compress();
}
instanceSnapshotInfo.LastInstanceExecuted = num;
instanceSnapshotInfo.RetrievalFinishTime = DateTimeOffset.Now;
ExTraceGlobals.StoreReadTracer.TraceDebug <string, int, int>((long)this.identityHash, "{0}: [1] Exiting GetSnapshot (Length: {2})", this.identity, num, instanceSnapshotInfo.Snapshot.Length);
return(instanceSnapshotInfo);
}
// Token: 0x06000EB3 RID: 3763 RVA: 0x0003ECF8 File Offset: 0x0003CEF8
public XElement GetDxStoreSnapshot()
{
DxStoreInstanceClient localClient = this.ClientFactory.LocalClient;
InstanceSnapshotInfo instanceSnapshotInfo = localClient.AcquireSnapshot("Public", true, null);
instanceSnapshotInfo.Decompress();
return(XElement.Parse(instanceSnapshotInfo.Snapshot));
}
public void ApplySnapshot(InstanceSnapshotInfo snapshotInfo, bool isTakeSnapshot = true)
{
lock (this.locker)
{
this.instance.LocalDataStore.ApplySnapshot(snapshotInfo, null);
if (isTakeSnapshot)
{
this.SaveSnapshot(true);
}
}
}
public InstanceSnapshotInfo AcquireSnapshot(string fullKeyName, bool isCompress)
{
this.EnsureInstanceIsReady();
bool isStale = !this.HealthChecker.IsStoreReady();
InstanceSnapshotInfo snapshot = this.LocalDataStore.GetSnapshot(fullKeyName, isCompress);
if (snapshot != null)
{
snapshot.IsStale = isStale;
}
return(snapshot);
}
// Token: 0x06000EB7 RID: 3767 RVA: 0x0003F048 File Offset: 0x0003D248
public void CopyClusdbSnapshotToDxStore()
{
InstanceSnapshotInfo instanceSnapshotInfo = new InstanceSnapshotInfo();
instanceSnapshotInfo.FullKeyName = "Public";
instanceSnapshotInfo.Snapshot = this.ClusdbSnapshot.ToString();
instanceSnapshotInfo.Compress();
using (InstanceClientFactory defaultGroupInstanceClientFactory = this.GetDefaultGroupInstanceClientFactory())
{
DxStoreInstanceClient localClient = defaultGroupInstanceClientFactory.LocalClient;
localClient.ApplySnapshot(instanceSnapshotInfo, false, null);
}
}
public void ApplySnapshot(InstanceSnapshotInfo snapshotInfo, int?instanceNumber)
{
if (snapshotInfo == null || string.IsNullOrEmpty(snapshotInfo.Snapshot))
{
ExTraceGlobals.StoreWriteTracer.TraceError <string, int>((long)this.identityHash, "{0}: [1] ApplySnapshot ignored since snapshot info is not valid", this.identity, instanceNumber ?? -1);
return;
}
snapshotInfo.Decompress();
XElement rootElement = XElement.Parse(snapshotInfo.Snapshot);
int num = (instanceNumber != null) ? instanceNumber.Value : snapshotInfo.LastInstanceExecuted;
this.ApplySnapshotFromXElement(snapshotInfo.FullKeyName, num, rootElement);
ExTraceGlobals.StoreWriteTracer.TraceDebug <string, int>((long)this.identityHash, "{0}: [1] Exiting ApplySnapshot", this.identity, num);
}
public void ApplySnapshot(InstanceSnapshotInfo snapshot, bool isForce = false)
{
this.EventLogger.Log(isForce ? DxEventSeverity.Warning : DxEventSeverity.Info, 0, "{0}: Applying snapshot (isForce={1})", new object[]
{
this.Identity,
isForce
});
if (isForce)
{
this.LocalDataStore.ApplySnapshot(snapshot, null);
return;
}
this.EnsureInstanceIsReady();
snapshot.Compress();
DxStoreCommand.ApplySnapshot command = new DxStoreCommand.ApplySnapshot
{
SnapshotInfo = snapshot
};
this.StateMachine.ReplicateCommand(command, null);
}
private void WhenHealthCheckerSeeMajorityOfNodes(GroupStatusInfo gsi)
{
if (this.IsStartupCompleted)
{
return;
}
bool flag = false;
try
{
object obj;
Monitor.Enter(obj = this.instanceLock, ref flag);
bool isWaitForNextRound = false;
bool flag2 = gsi.Lag > this.GroupConfig.Settings.MaxAllowedLagToCatchup;
DxStoreInstance.Tracer.TraceDebug((long)this.IdentityHash, "{0}: Instance start - Majority replied (LocalInstance# {1}, Lag: {2}, CatchupLimit: {3}", new object[]
{
this.Identity,
(gsi.LocalInstance != null) ? gsi.LocalInstance.InstanceNumber : -1,
gsi.Lag,
this.GroupConfig.Settings.MaxAllowedLagToCatchup
});
if (flag2)
{
isWaitForNextRound = true;
}
DxStoreInstanceClient client = this.InstanceClientFactory.GetClient(gsi.HighestInstance.NodeName);
InstanceSnapshotInfo snapshotInfo = null;
this.RunBestEffortOperation("GetSnapshot :" + gsi.HighestInstance.NodeName, delegate
{
snapshotInfo = client.AcquireSnapshot(null, true, null);
}, LogOptions.LogAll, null, null, null, null);
if (snapshotInfo != null && snapshotInfo.LastInstanceExecuted > gsi.LocalInstance.InstanceNumber)
{
this.RunBestEffortOperation("Apply local snapshot", delegate
{
this.SnapshotManager.ApplySnapshot(snapshotInfo, true);
isWaitForNextRound = false;
}, LogOptions.LogAll, null, null, null, null);
}
if (!isWaitForNextRound)
{
this.majorityNotificationSubscription.Dispose();
this.majorityNotificationSubscription = null;
this.HealthChecker.ChangeTimerDuration(this.GroupConfig.Settings.GroupHealthCheckDuration);
Round <string>?leaderHint = null;
if (gsi.IsLeaderExist)
{
leaderHint = new Round <string>?(gsi.LeaderHint);
}
this.StateMachine = this.CreateStateMachine(leaderHint, null);
Task task = this.StartStateMachine();
task.ContinueWith(delegate(Task t)
{
this.EventLogger.Log(DxEventSeverity.Info, 0, "Successfully started state machine", new object[0]);
this.SnapshotManager.Start();
this.State = InstanceState.Running;
this.IsStartupCompleted = true;
});
}
else
{
DxStoreInstance.Tracer.TraceWarning <string>((long)this.IdentityHash, "{0}: Instance start - waiting for the next round to start local instance", this.Identity);
}
}
finally
{
if (flag)
{
object obj;
Monitor.Exit(obj);
}
}
}
