public MRCStatusManager(MRCRequestDispatcher master) throws IOException {
super("MRCStatusManager");
this.master = master;
knownMRCs = ServiceSet.newBuilder();
mrcAddrMap = new HashMap<InetSocketAddress, String>();
int interval = master.getConfig().getOsdCheckInterval();
checkIntervalMillis = 1000 * interval;
}
/** Main loop. */
public void run() {
// initially fetch the list of MRCs from the Directory Service
try {
knownMRCs =
master
.getDirClient()
.xtreemfs_service_get_by_type(
null,
RPCAuthentication.authNone,
RPCAuthentication.userService,
ServiceType.SERVICE_TYPE_MRC)
.toBuilder();
} catch (Throwable exc) {
this.notifyCrashed(exc);
}
notifyStarted();
if (Logging.isInfo())
Logging.logMessage(
Logging.LEVEL_INFO,
Category.lifecycle,
this,
"MRC status manager operational, using DIR %s",
master.getConfig().getDirectoryService().toString());
while (!quit) {
synchronized (this) {
try {
this.wait(
knownMRCs == null || knownMRCs.getServicesCount() == 0
? checkIntervalMillis / 2
: checkIntervalMillis);
} catch (InterruptedException ex) {
break;
}
}
Logging.logMessage(
Logging.LEVEL_DEBUG, Category.misc, this, "sending request for MRC list to DIR...");
try {
// request list of registered MRCs from Directory
// Service
knownMRCs =
master
.getDirClient()
.xtreemfs_service_get_by_type(
null,
RPCAuthentication.authNone,
RPCAuthentication.userService,
ServiceType.SERVICE_TYPE_MRC)
.toBuilder();
Logging.logMessage(
Logging.LEVEL_DEBUG, Category.misc, this, "... received MRC list from DIR");
evaluateResponse(knownMRCs);
} catch (InterruptedException ex) {
break;
} catch (Exception exc) {
if (!quit)
Logging.logMessage(
Logging.LEVEL_ERROR, Category.misc, this, OutputUtils.stackTraceToString(exc));
}
synchronized (syncLock) {
syncLock.notifyAll();
}
}
notifyStopped();
}
