adoroszlai commented on code in PR #3810:
URL: https://github.com/apache/ozone/pull/3810#discussion_r1027139834
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hadoop-ozone/dist/src/main/compose/ozonesecure/test.sh:
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@@ -27,7 +27,7 @@ export SECURITY_ENABLED=true
: ${OZONE_BUCKET_KEY_NAME:=key1}
-start_docker_env
+start_docker_env 5
Review Comment:
This causes intermittent, but frequent failure in the replication test.
https://github.com/apache/ozone/blob/85e7cd1867ec9000df798c74ab0f9cf153936a5d/hadoop-ozone/dist/src/main/compose/ozonesecure/test.sh#L57-L61
The test scales datanodes to 2, waits for container replica count = 2, then
scales to 3, and waits for replica count = 3.
With 3 initial datanodes, the test can assume all nodes have the container,
so scaling to 2 then 3 datanodes, the container count always matches
expectations, if replication works correctly.
Now with 5 initial datanodes, when the test scales datanodes to 2, the
container may have 0, 1 or 2 healthy replicas left, depending on where the
original 3 replicas were stored. And when datanodes are scaled to 3, the
container may have 1, 2 or 3 replicas.
Thus the test fails frequently, but not in 100% of runs.
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