[GitHub] [ozone] kerneltime commented on a diff in pull request #3771: HDDS-7229. Introduce container location cache in ScmClient

[GitBox <gi...@apache.org>]

kerneltime commented on code in PR #3771:
URL: https://github.com/apache/ozone/pull/3771#discussion_r983178750


##########
hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/ScmClient.java:
##########
@@ -52,4 +107,40 @@ public void setUpdateServiceGrpcClient(
   public SCMUpdateServiceGrpcClient getUpdateServiceGrpcClient() {
     return updateServiceGrpcClient;
   }
+
+  public Pipeline getContainerLocation(long containerId, boolean forceRefresh)
+      throws IOException {
+    if (forceRefresh) {
+      containerLocationCache.invalidate(containerId);
+    }
+    try {
+      return containerLocationCache.get(containerId);
+    } catch (ExecutionException e) {
+      return handleCacheExecutionException(e);
+    }
+  }
+
+  public Map<Long, Pipeline> getContainerLocations(Iterable<Long> containerIds,

Review Comment:
   Is this for objects with multiple containers? Why have `getContainerLocation`?



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