maoling created ZOOKEEPER-3232:
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Summary: make the log of notification about LE more readable
Key: ZOOKEEPER-3232
URL: https://issues.apache.org/jira/browse/ZOOKEEPER-3232
Project: ZooKeeper
Issue Type: Improvement
Components: leaderElection
Reporter: maoling
Assignee: maoling
the log of notification about LE is very important to help us to see the
process of LE:e.g.
{code:java}
2019-01-01 16:29:27,494 [myid:2] - INFO
[WorkerReceiver[myid=2]:FastLeaderElection@595] - Notification: 1 (message
format version), 3 (n.leader), 0x60b3dc215 (n.zxid), 0x3 (n.round), FOLLOWING
(n.state), 1 (n.sid), 0x7 (n.peerEpoch) LOOKING (my state){code}
the current log have some problems:
1:don't use the placeholder(other:+),don't in the style of k:v（antiman）
2.the properties in the logs are very messed(no group by,no order), not easy to
read.
3.the value about version is HEX which don't have the 0x prefix.
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