diff --git a/src/main/java/org/gcube/accounting/insert/rstudio/plugin/AccountingInsertRstudioPlugin.java b/src/main/java/org/gcube/accounting/insert/rstudio/plugin/AccountingInsertRstudioPlugin.java
index c9742b0..b558049 100644
--- a/src/main/java/org/gcube/accounting/insert/rstudio/plugin/AccountingInsertRstudioPlugin.java
+++ b/src/main/java/org/gcube/accounting/insert/rstudio/plugin/AccountingInsertRstudioPlugin.java
@@ -157,7 +157,8 @@ public class AccountingInsertRstudioPlugin extends Plugin<AccountingInsertRstudi
 				document = JsonDocument.create("docId", content);
 
 				JsonDocument doc = JsonDocument.create(docId, content);
-				JsonDocument response = accountingBucket.upsert(doc);
+				accountingBucket.upsert(doc);
+				//JsonDocument response = accountingBucket.upsert(doc);
 				logger.debug("upsert doc:{}",doc.toString());
 				Thread.sleep(timeWait);
 			}
@@ -181,10 +182,11 @@ public class AccountingInsertRstudioPlugin extends Plugin<AccountingInsertRstudi
 		Thread.currentThread().interrupt();
 	}
 
+	@SuppressWarnings("unused")
 	private static long bytesToMeg(long bytes) {
 		return bytes / Constant.MEGABYTE;
 	}
-
+	
 	private static long bytesToKil(long bytes) {
 		return bytes / Constant.KILOBYTE ;
 	}