yfxhust commented on a change in pull request #1247: ZOOKEEPER-3713:
ReadOnlyZooKeeperServer should not expose the uniniti…
URL: https://github.com/apache/zookeeper/pull/1247#discussion_r379328043
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File path:
zookeeper-server/src/main/java/org/apache/zookeeper/server/quorum/QuorumPeer.java
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@@ -1350,6 +1350,15 @@ public void run() {
ServerMetrics.getMetrics().LOOKING_COUNT.add(1);
if (Boolean.getBoolean("readonlymode.enabled")) {
+ if (!zkDb.isInitialized()) {
Review comment:
Thank you for comments.
Let's take Follower as example.
In my understanding, QuorumPeer would shutdown FollowerZooKeeperServer and
clear QuorumPeer's `follower` as null when there is issue during syncing with
leader. This is as same as what you described. But the corresponding QuorumPeer
is still alive and it will fall into ServerState.LOOKING. In the LOOKING state,
it will start a temporary ReadOnlyZooKeeperServer if `readonlymode.enabled` is
set. That's the point that this PR want to resolve.
If `readonlymode.enabled` is not set, I think it wont't move forward and
look for leader.
If I missed anything. please let me know.
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