ivandika3 commented on code in PR #10598:
URL: https://github.com/apache/ozone/pull/10598#discussion_r3519951948
##########
hadoop-ozone/mini-cluster/src/main/java/org/apache/hadoop/ozone/MiniOzoneClusterImpl.java:
##########
@@ -527,6 +533,12 @@ public MiniOzoneCluster build() throws IOException {
cluster.startHddsDatanodes();
}
+ // Recreate the Ratis pipeline to prevent imbalanced node placement
across racks
+ // caused by asynchronous DN registration.
+ if (racks != null && startDataNodes) {
+ resetPipelinesForRackAwareness(cluster);
+ }
Review Comment:
Hm, I don't get this logic. Rack awareness should not leak logic to a
generic MiniOzoneCluster?
Edit: Ok I think I understand since some datanodes will send the heartbeat
earlier than the others and this can cause the pipeline placement to be
imbalanced. Does this affect the current tests?
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
