kishendas commented on a change in pull request #1808:
URL: https://github.com/apache/hive/pull/1808#discussion_r547501798



##########
File path: 
itests/hive-unit/src/test/java/org/apache/hadoop/hive/metastore/cache/TestCachedStoreUpdateUsingEvents.java
##########
@@ -94,8 +96,9 @@ private Database createTestDb(String dbName, String dbOwner) {
   }
 
   private Table createTestTblParam(String dbName, String tblName, String 
tblOwner,
-                              List<FieldSchema> cols, List<FieldSchema> 
ptnCols, Map<String, String> tblParams) {
-    String serdeLocation = "file:/tmp";
+                              List<FieldSchema> cols, List<FieldSchema> 
ptnCols, Map<String, String> tblParams)
+      throws IOException {
+    String serdeLocation = Files.createTempDirectory(dbName + "_" + 
tblName).toString();

Review comment:
       Even the dbName and tblName can be same across multiple tests, which can 
get cleaned up. Would it be a good idea to use the current timestamp or 
generate a random number and prepend that to dbName and use that for the 
temporary directory ?




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