linyiqun edited a comment on pull request #1746:
URL: https://github.com/apache/ozone/pull/1746#issuecomment-757158465


   >I agree that we need to distinguish between these two different behaviors 
of the user. ”Don't allow 0 can be set“ It's our purpose,also agree this. The 
point is, how do we do that?
   
   @captainzmc , here I mean don't allow 0 can be set in quota from the client 
side. So we can just add limit check in OzoneQuota#parseQuota and 
RpcClient#verifyCountsQuota/verifySpaceQuota. 
   
   I see OmVolumeArgs resets the quotaInBytes/quotaInNamespace to 
OzoneConsts.QUOTA_RESET in its builder function. We can also make this change 
in OmBucketArgs# builder constructor. In addition, we should also reset quota 
when 0 was passed in constructor method.
   
   ```java
     private OmBucketArgs(String volumeName, String bucketName,
         Boolean isVersionEnabled, StorageType storageType,
         Map<String, String> metadata, long quotaInBytes, long 
quotaInNamespace) {
       this.volumeName = volumeName;
       this.bucketName = bucketName;
       this.isVersionEnabled = isVersionEnabled;
       this.storageType = storageType;
       this.metadata = metadata;
       // if quota is 0, reset to OzoneConsts.QUOTA_RESET
       this.quotaInBytes = quotaInBytes;
       this.quotaInNamespace = quotaInNamespace;
     }
   
   ```
   
   Does this make sense to you?


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