private static IDictionary <string, long> GetCacheBulkStatistics(ICacheCoreSession session)
{
var cacheStatistics = new Dictionary <string, long>();
foreach (var statistic in GetLoggedStatistics(session, out _))
{
cacheStatistics.Add(statistic.qualifiedId, statistic.value);
}
return(cacheStatistics);
}
private CacheCoreCacheInitializer(
LoggingContext loggingContext,
ICacheCoreCache cache,
ICacheCoreSession session,
List <IDisposable> acquiredDisposables,
bool enableFingerprintLookup,
RootTranslator rootTranslator)
: base(
loggingContext,
acquiredDisposables,
enableFingerprintLookup)
{
Contract.Requires(cache != null);
Contract.Requires(session != null);
m_cache = cache;
m_session = session;
m_rootTranslator = rootTranslator;
m_initialStatistics = GetCacheBulkStatistics(session);
}
private static IEnumerable <(string cacheId, string cacheType, string qualifiedId, string id, long value)> GetLoggedStatistics(ICacheCoreSession session, out Dictionary <string, string> cacheNameMap)
{
cacheNameMap = null;
var statistics = new List <(string, string, string, string, long)>();
var maybeStats = session.GetStatisticsAsync().GetAwaiter().GetResult();
if (maybeStats.Succeeded)
{
var stats = maybeStats.Result;
cacheNameMap = BuildCacheNameMap(stats);
foreach (var singleCacheStats in stats)
{
foreach (KeyValuePair <string, double> statValue in singleCacheStats.Statistics)
{
// The *Sum2 stats are sum of squares of values and while stored as doubles can esaily explode a ulong, so they'll drop here.
// If those stats are wanted, they should be collected via an ETW based telemtry system.
if (!statValue.Key.EndsWith("Sum2", StringComparison.OrdinalIgnoreCase))
{
var value = Convert.ToInt64(statValue.Value);
statistics.Add((
singleCacheStats.CacheId,
singleCacheStats.CacheType,
$"{singleCacheStats.CacheId}.{statValue.Key}",
statValue.Key,
value));
}
}
}
}
return(statistics);
}
internal static async Task <Possible <CacheCoreCacheInitializer> > TryInitializeCacheInternalAsync(
LoggingContext loggingContext,
PathTable pathTable,
string cacheDirectory,
ICacheConfiguration config,
bool enableFingerprintLookup,
RootTranslator rootTranslator)
{
Contract.Requires(pathTable != null);
Contract.Requires(pathTable.IsValid);
Contract.Requires(config != null);
Contract.Requires(config.CacheLogFilePath.IsValid);
Contract.Requires(config.CacheConfigFile.IsValid);
Contract.Requires(!string.IsNullOrWhiteSpace(cacheDirectory));
bool succeeded = false;
ICacheCoreCache cache = null;
ICacheCoreSession session = null;
try
{
Possible <ICacheConfigData> cacheConfigData = TryGetCacheConfigData(pathTable, cacheDirectory, config, rootTranslator);
if (!cacheConfigData.Succeeded)
{
return(cacheConfigData.Failure);
}
Possible <ICacheCoreCache> maybeCache = await CacheFactory.InitializeCacheAsync(cacheConfigData.Result, loggingContext.ActivityId, config);
if (!maybeCache.Succeeded)
{
return(maybeCache.Failure);
}
// We are now responsible for shutting this down (even if something later fails).
cache = maybeCache.Result;
cache.SuscribeForCacheStateDegredationFailures(
failure => { Tracing.Logger.Log.CacheReportedRecoverableError(loggingContext, failure.DescribeIncludingInnerFailures()); });
// Log the cache ID we got.
Tracing.Logger.Log.CacheInitialized(loggingContext, cache.CacheId);
Possible <ICacheCoreSession> maybeSession =
string.IsNullOrWhiteSpace(config.CacheSessionName)
? await cache.CreateSessionAsync()
: await cache.CreateSessionAsync(config.CacheSessionName);
if (!maybeSession.Succeeded)
{
return(maybeSession.Failure);
}
session = maybeSession.Result;
succeeded = true;
return(new CacheCoreCacheInitializer(
loggingContext,
cache,
session,
new List <IDisposable>(),
enableFingerprintLookup: enableFingerprintLookup,
rootTranslator: rootTranslator,
replaceExistingFileOnMaterialization: config.ReplaceExistingFileOnMaterialization));
}
finally
{
if (!succeeded)
{
// Note that we clean up in reverse order that we initialized things.
if (session != null)
{
Analysis.IgnoreResult(await session.CloseAsync(), justification: "Okay to ignore close");
Analysis.IgnoreResult(await cache.ShutdownAsync(), justification: "Okay to ignore shutdown");
}
}
}
}
