Xushaohong commented on code in PR #4128:
URL: https://github.com/apache/ozone/pull/4128#discussion_r1057669981
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hadoop-hdds/common/src/main/java/org/apache/hadoop/hdds/HddsUtils.java:
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@@ -776,4 +790,90 @@ public static
ContainerProtos.ContainerCommandResponseProto processForDebug(
return msg;
}
+
+ /**
+ * Use raft client to send admin request, transfer the leadership.
+ * If not isRandom, then use host to match the target leader.
+ * 1. Set priority and send setConfiguration request
+ * 2. Trigger transferLeadership API.
+ *
+ * @param server the Raft server
+ * @param groupId the Raft group Id
+ * @param host the string of the host, should be IP:PORT format
+ * @param isRandom whether to choose random follower as target leader
+ * @param curLeader the current Raft leader
+ * @throws IOException
+ */
+ public static void transferRatisLeadership(RaftServer server,
Review Comment:
We mainly use the Raft client to trigger two admin APIs, setConfiguration
and transferLeadership. Such the process is short-term and straightforward, so
we need not keep any state which needs to hold the class.
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