internal AppInstanceEtlFileDataReader(
string directory,
ServicePackageTableBackup tableBackup,
ServicePackageTableManager.AddOrUpdateHandler addOrUpdateServicePackageHandler,
ServicePackageTableManager.RemoveHandler removeServicePackageHandler)
: base(addOrUpdateServicePackageHandler, removeServicePackageHandler)
{
this.etlDirectory = directory;
this.tableBackup = tableBackup;
this.currentEtlReadIntervalMillisec = TimeSpan.MaxValue;
this.currentEtlFileFlushInterval = TimeSpan.MaxValue;
this.currentAppEtwTracesDeletionAgeMinutes = TimeSpan.MaxValue;
// Start reading events from the ETL file.
this.etlReadTimer = new DcaTimer(
AppInstanceEtlReadTimerId,
this.Read,
this.GetEtlReadInterval());
this.etlReadTimer.Start();
// Create a timer to periodically delete old ETL files
var oldDataDeletionInterval = TimeSpan.FromSeconds(Utility.GetUnencryptedConfigValue(
ConfigReader.DiagnosticsSectionName,
TestOnlyAppDataDeletionIntervalSecondsParamName,
(int)DefaultOldDataDeletionInterval.TotalSeconds));
Utility.TraceSource.WriteInfo(
TraceType,
"Interval at which we check for old data to delete: {0} seconds.",
oldDataDeletionInterval);
this.oldDataDeletionTimer = new DcaTimer(
OldDataDeletionTimerId,
this.DeleteOldEtlFiles,
oldDataDeletionInterval);
this.oldDataDeletionTimer.Start();
}
internal ServicePackageTableManager(AppInstanceManager appInstanceMgr)
{
this.applicationInstanceManager = appInstanceMgr;
this.servicePackageTable = new ServicePackageTable();
// Get the interval at which we need to read ETL files
int servicePackageNotificationIntervalSeconds = Utility.GetUnencryptedConfigValue(
HostingSectionName,
ServicePackageNotificationIntervalInSecondsParamName,
DefaultServicePackageNotificationIntervalInSeconds);
this.maxServicePackageInactiveTimeSeconds = servicePackageNotificationIntervalSeconds * MaxServicePackageInactiveTimeMultiplier;
Utility.TraceSource.WriteInfo(
TraceType,
"Interval at which we check for inactive service packages: {0} seconds.",
servicePackageNotificationIntervalSeconds);
Utility.TraceSource.WriteInfo(
TraceType,
"Maximum time for which a service package can remain inactive before being deleted: {0} seconds.",
this.maxServicePackageInactiveTimeSeconds);
// Create the folder where the backup files are stored
string tableBackupDirectory = Path.Combine(
Utility.LogDirectory,
AppInstanceDataDirName,
AppInstanceTableDirName);
FabricDirectory.CreateDirectory(tableBackupDirectory);
// Initialize the application activation table
AppActivationTable.Initialize(tableBackupDirectory);
// Retrieve the file where we last saved the service package table
this.tableBackup = new ServicePackageTableBackup(
tableBackupDirectory,
this.AddOrUpdateServicePackage);
// Initialize the service package table from the file that we last saved.
if (false == this.tableBackup.Read())
{
Utility.TraceSource.WriteError(
TraceType,
"Unable to initialize service package table from backup file on disk.");
}
// Initialize the timestamp up to which ETW events can be read
Utility.ApplicationEtwTracesEndTime = this.tableBackup.LatestBackupTime.Timestamp;
// Compute the directory containing ETL files containing information about
// application instances
string etlFileDirectory = Path.Combine(
Utility.LogDirectory,
AppInstanceDataDirName,
AppInstanceDataEtlDirName);
FabricDirectory.CreateDirectory(etlFileDirectory);
#if !DotNetCoreClrLinux
// Create the object that reads events from ETL files.
this.etlFileReader = new AppInstanceEtlFileDataReader(
etlFileDirectory,
this.tableBackup,
this.AddOrUpdateServicePackage,
this.RemoveServicePackage);
#endif
long inactiveServicePackageScanIntervalMillisec = ((long)servicePackageNotificationIntervalSeconds) * 1000;
this.inactiveServicePackageScanTimer = new DcaTimer(
InactiveServicePackageScanTimerId,
this.MarkInactiveServicePackagesForDeletion,
inactiveServicePackageScanIntervalMillisec);
this.inactiveServicePackageScanTimer.Start();
}
