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https://issues.apache.org/jira/browse/DRILL-4275?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15147981#comment-15147981
 ] 

ASF GitHub Bot commented on DRILL-4275:
---------------------------------------

Github user sudheeshkatkam commented on a diff in the pull request:

    https://github.com/apache/drill/pull/374#discussion_r52960456
  
    --- Diff: 
exec/java-exec/src/main/java/org/apache/drill/exec/server/rest/profile/ProfileResources.java
 ---
    @@ -217,11 +223,14 @@ private QueryProfile getQueryProfile(String queryId) 
throws IOException {
         }
     
         // then check blob store
    -    PStore<QueryProfile> profiles = 
provider().getStore(QueryManager.QUERY_PROFILE);
    -    QueryProfile queryProfile = profiles.get(queryId);
    -    if (queryProfile != null) {
    -      checkOrThrowProfileViewAuthorization(queryProfile);
    -      return queryProfile;
    +    try (final PersistentStore<QueryProfile> profiles = 
getProvider().getOrCreateStore(QueryManager.QUERY_PROFILE)) {
    --- End diff --
    
    same here


> Refactor e/pstore interfaces and their factories to provide a unified 
> mechanism to access stores
> ------------------------------------------------------------------------------------------------
>
>                 Key: DRILL-4275
>                 URL: https://issues.apache.org/jira/browse/DRILL-4275
>             Project: Apache Drill
>          Issue Type: Improvement
>          Components: Execution - Flow
>            Reporter: Hanifi Gunes
>            Assignee: Deneche A. Hakim
>
> We rely on E/PStore interfaces to persist data. Even though E/PStore stands 
> for Ephemeral and Persistent stores respectively, the current design for 
> EStore does not extend the interface/functionality of PStore at all, which 
> hints abstraction for EStore is redundant. This issue proposes a new unified 
> Store interface replacing the old E/PStore that exposes an additional method 
> that report persistence level as follows:
> {code:title=Store interface}
> interface Store<V> {
>   StoreMode getMode();
>   V get(String key);
>   ...
> }
> enum StoreMode {
>   EPHEMERAL,
>   PERSISTENT,
>   ...
> }
> {code}
> The new design brings in less redundancy, more centralized code, ease to 
> reason and maintain.



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