private void UmbracoModule_RouteAttempt(object sender, RoutableAttemptEventArgs e)
{
if (!_initialized)
{
lock (_locker)
{
// double check lock, we must only do this once
if (!_initialized)
{
_initialized = true;
UmbracoModule.RouteAttempt -= UmbracoModule_RouteAttempt;
if (!_mainDom.IsMainDom)
{
return;
}
var bootState = _syncBootStateAccessor.GetSyncBootState();
_examineManager.ConfigureIndexes(_mainDom, _logger);
// if it's a cold boot, rebuild all indexes including non-empty ones
// delay one minute since a cold boot also triggers nucache rebuilds
_indexRebuilder.RebuildIndexes(bootState != SyncBootState.ColdBoot, 60000);
}
}
}
}
// <summary>
/// Initializes a server that has never synchronized before.
/// </summary>
/// <remarks>
/// Thread safety: this is NOT thread safe. Because it is NOT meant to run multi-threaded.
/// Callers MUST ensure thread-safety.
/// </remarks>
private SyncBootState InitializeColdBootState()
{
lock (_locko)
{
if (_cancellationToken.IsCancellationRequested)
{
return(SyncBootState.Unknown);
}
SyncBootState syncState = _syncBootStateAccessor.GetSyncBootState();
if (syncState == SyncBootState.ColdBoot)
{
// Get the last id in the db and store it.
// Note: Do it BEFORE initializing otherwise some instructions might get lost
// when doing it before. Some instructions might run twice but this is not an issue.
var maxId = CacheInstructionService.GetMaxInstructionId();
// if there is a max currently, or if we've never synced
if (maxId > 0 || _lastSyncedFileManager.LastSyncedId < 0)
{
_lastSyncedFileManager.SaveLastSyncedId(maxId);
}
}
return(syncState);
}
}
/// <summary>
/// On first http request schedule an index rebuild for any empty indexes (or all if it's a cold boot)
/// </summary>
/// <param name="notification"></param>
public void Handle(UmbracoRequestBeginNotification notification)
{
if (_runtimeState.Level != RuntimeLevel.Run)
{
return;
}
LazyInitializer.EnsureInitialized(
ref _isReady,
ref _isReadSet,
ref _isReadyLock,
() =>
{
SyncBootState bootState = _syncBootStateAccessor.GetSyncBootState();
_backgroundIndexRebuilder.RebuildIndexes(
// if it's not a cold boot, only rebuild empty ones
bootState != SyncBootState.ColdBoot,
TimeSpan.FromMinutes(1));
return(true);
});
}
/// <summary>
/// Lazily populates the stores only when they are first requested
/// </summary>
internal void EnsureCaches() => LazyInitializer.EnsureInitialized(
ref _isReady,
ref _isReadSet,
ref _isReadyLock,
() =>
{
// lock this entire call, we only want a single thread to be accessing the stores at once and within
// the call below to mainDom.Register, a callback may occur on a threadpool thread to MainDomRelease
// at the same time as we are trying to write to the stores. MainDomRelease also locks on _storesLock so
// it will not be able to close the stores until we are done populating (if the store is empty)
lock (_storesLock)
{
if (!_options.IgnoreLocalDb)
{
_mainDom.Register(MainDomRegister, MainDomRelease);
// stores are created with a db so they can write to it, but they do not read from it,
// stores need to be populated, happens in OnResolutionFrozen which uses _localDbExists to
// figure out whether it can read the databases or it should populate them from sql
_logger.LogInformation("Creating the content store, localContentDbExists? {LocalContentDbExists}", _localContentDbExists);
_contentStore = new ContentStore(_publishedSnapshotAccessor, _variationContextAccessor, _loggerFactory.CreateLogger("ContentStore"), _loggerFactory, _publishedModelFactory, _localContentDb);
_logger.LogInformation("Creating the media store, localMediaDbExists? {LocalMediaDbExists}", _localMediaDbExists);
_mediaStore = new ContentStore(_publishedSnapshotAccessor, _variationContextAccessor, _loggerFactory.CreateLogger("ContentStore"), _loggerFactory, _publishedModelFactory, _localMediaDb);
}
else
{
_logger.LogInformation("Creating the content store (local db ignored)");
_contentStore = new ContentStore(_publishedSnapshotAccessor, _variationContextAccessor, _loggerFactory.CreateLogger("ContentStore"), _loggerFactory, _publishedModelFactory);
_logger.LogInformation("Creating the media store (local db ignored)");
_mediaStore = new ContentStore(_publishedSnapshotAccessor, _variationContextAccessor, _loggerFactory.CreateLogger("ContentStore"), _loggerFactory, _publishedModelFactory);
}
_domainStore = new SnapDictionary <int, Domain>();
var okContent = false;
var okMedia = false;
SyncBootState bootState = _syncBootStateAccessor.GetSyncBootState();
try
{
if (bootState != SyncBootState.ColdBoot && _localContentDbExists)
{
okContent = LockAndLoadContent(() => LoadContentFromLocalDbLocked(true));
if (!okContent)
{
_logger.LogWarning("Loading content from local db raised warnings, will reload from database.");
}
}
if (bootState != SyncBootState.ColdBoot && _localMediaDbExists)
{
okMedia = LockAndLoadMedia(() => LoadMediaFromLocalDbLocked(true));
if (!okMedia)
{
_logger.LogWarning("Loading media from local db raised warnings, will reload from database.");
}
}
if (!okContent)
{
LockAndLoadContent(() => LoadContentFromDatabaseLocked(true));
}
if (!okMedia)
{
LockAndLoadMedia(() => LoadMediaFromDatabaseLocked(true));
}
LockAndLoadDomains();
}
catch (Exception ex)
{
_logger.LogCritical(ex, "Panic, exception while loading cache data.");
throw;
}
return(true);
}
});