jnturton commented on code in PR #2929:
URL: https://github.com/apache/drill/pull/2929#discussion_r1800518344


##########
contrib/storage-splunk/src/main/java/org/apache/drill/exec/store/splunk/SplunkSchema.java:
##########
@@ -148,8 +183,24 @@ private void registerIndexes() {
     registerTable(SPL_TABLE_NAME, new DynamicDrillTable(plugin, 
plugin.getName(),
       new SplunkScanSpec(plugin.getName(), SPL_TABLE_NAME, plugin.getConfig(), 
queryUserName)));
 
+    Set<String> indexList = null;
     // Retrieve and add all other Splunk indexes
-    for (String indexName : connection.getIndexes().keySet()) {
+    // First check the cache to see if we have a list of indexes.
+    String nameKey = getNameForCache();
+    if (useCache) {
+      indexList = cache.getIfPresent(nameKey);
+    }

Review Comment:
   Okay, in that case, can I propose 
   
   - a Map of caches with one cache per plugin name + query user and one cache 
key per Splunk index or
   - a unified cache with one cache key per plugin name + query user + Splunk 
index name?



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