Better error messages in case a ceph pool does not have a quota, and thus appears with 0 size

castor/db/oracleStager.sql

@@ -1439,7 +1439,7 @@ BEGIN
     UPDATE /*+ INDEX(Subrequest PK_Subrequest_Id)*/ SubRequest
        SET status = dconst.SUBREQUEST_FAILED,
            errorCode = serrno.ENOSPC, -- No space left on device
-           errorMessage = 'File creation canceled since diskPool is full'
+           errorMessage = 'File creation canceled since pool is full'
      WHERE id = srId;
     RETURN;
   END IF;

castor/scheduler/diskmanager/reporter.py

@@ -111,6 +111,8 @@ class ReporterThread(threading.Thread):
       for dataPool in dataPools:
           try:
                 totalSpace = quotas[dataPool]
+                if 0 == totalSpace:
+                      raise Exception("Quota missing in datapool %s (set to 0)" % dataPool)
                 freeSpace = totalSpace - usedSpace[dataPool]
                 # fill report
                 reports.append((diskServerName, dataPool, maxFreeSpace, minAllowedFreeSpace,