nvazquez commented on a change in pull request #4918:
URL: https://github.com/apache/cloudstack/pull/4918#discussion_r614201836



##########
File path: server/src/main/java/com/cloud/server/StatsCollector.java
##########
@@ -1020,14 +1020,22 @@ protected void runInContext() {
                         if (answer != null && answer.getResult()) {
                             storagePoolStats.put(pool.getId(), 
(StorageStats)answer);
 
+                            boolean poolNeedsUpdating = false;
                             // Seems like we have dynamically updated the pool 
size since the prev. size and the current do not match
-                            if (pool.getCapacityBytes() != 
((StorageStats)answer).getCapacityBytes() ||
-                                    pool.getUsedBytes() != 
((StorageStats)answer).getByteUsed()) {
-                                
pool.setCapacityBytes(((StorageStats)answer).getCapacityBytes());
-                                if 
(pool.getStorageProviderName().equalsIgnoreCase(DataStoreProvider.DEFAULT_PRIMARY))
 {
-                                    pool.setUsedBytes(((StorageStats) 
answer).getByteUsed());
-                                    pool.setUpdateTime(new Date());
+                            if (_storagePoolStats.get(poolId) != null && 
_storagePoolStats.get(poolId).getCapacityBytes() != 
((StorageStats)answer).getCapacityBytes()) {
+                                if (((StorageStats)answer).getCapacityBytes() 
> 0) {
+                                    
pool.setCapacityBytes(((StorageStats)answer).getCapacityBytes());
+                                    poolNeedsUpdating = true;
+                                } else {
+                                    s_logger.warn("Received 0 capacity for 
pool ID " + poolId);

Review comment:
       ```suggestion
                                       s_logger.warn("Not setting capacity 
bytes, received " + ((StorageStats)answer).getCapacityBytes()  + " capacity for 
pool ID " + poolId);
   ```




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