errose28 commented on code in PR #5621:
URL: https://github.com/apache/ozone/pull/5621#discussion_r1399808792


##########
hadoop-hdds/common/src/main/java/org/apache/hadoop/ozone/OzoneConfigKeys.java:
##########
@@ -188,6 +188,9 @@ public final class OzoneConfigKeys {
       "ozone.client.ec.grpc.write.timeout";
   public static final String OZONE_CLIENT_EC_GRPC_WRITE_TIMEOUT_DEFAULT = 
"30s";
 
+  public static final String OZONE_EC_GRPC_ZERO_COPY_ENABLED = 
"ozone.ec.grpc.zerocopy.enabled";
+  public static final boolean OZONE_EC_GRPC_ZERO_COPY_ENABLED_DEFAULT = false;

Review Comment:
   Why do we need a feature flag for this? This requires us maintaining and 
testing two different code paths.



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