avijayanhwx commented on a change in pull request #1613:
URL: https://github.com/apache/ozone/pull/1613#discussion_r532782833
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File path: hadoop-ozone/interface-client/src/main/proto/OmClientProtocol.proto
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@@ -145,6 +146,7 @@ message OMRequest {
optional DBUpdatesRequest dbUpdatesRequest =
53;
optional FinalizeUpgradeRequest finalizeUpgradeRequest =
54;
optional FinalizeUpgradeProgressRequest finalizeUpgradeProgressRequest =
55;
+ optional PrepareRequest prepareRequest =
56;
Review comment:
+1 to @errose28's comment. We can keep it "prepare" as a generic
operation that can be used during upgrade, downgrade as well as creating
checkpoint for supporting "rollbacks" in the future.
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