gianm commented on code in PR #19985:
URL: https://github.com/apache/druid/pull/19985#discussion_r3786887710


##########
server/src/main/java/org/apache/druid/segment/loading/SegmentLocalCacheManager.java:
##########
@@ -566,8 +577,13 @@ public AcquireSegmentAction acquireSegment(final 
DataSegment dataSegment, final
         throw DruidException.forPersona(DruidException.Persona.USER)
                             
.ofCategory(DruidException.Category.CAPACITY_EXCEEDED)
                             .build(
-                                "Unable to load segment[%s] on demand, ensure 
enough disk space has been allocated to load all segments involved in the 
query",
-                                dataSegment.getId()
+                                "Unable to load segment[%s] on demand, ensure 
enough disk space has been allocated "

Review Comment:
   This is not an appropriate USER persona message, the USER should not see a 
list of storage locations. Actually even the prior message wasn't great for a 
USER: they can't "ensure enough disk space has been allocated". IMO, we can 
keep the more detailed message, but retarget it to OPERATOR.



##########
server/src/main/java/org/apache/druid/segment/loading/StorageLocation.java:
##########
@@ -154,6 +154,7 @@ public StorageLocation(File path, long maxSizeBytes, 
@Nullable Double freeSpaceP
     } else {
       this.freeSpaceToKeep = 0;
     }
+    log.info("SegmentLocation[%s] configured with capacity[%,d] bytes.", path, 
maxSizeBytes);

Review Comment:
   `StorageLocation` (spelling). Please fix the other one (pre-existing prior 
to this PR) too.



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