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https://issues.apache.org/jira/browse/RATIS-980?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

runzhiwang updated RATIS-980:
-----------------------------
    Description: 
2020-06-18T00:46:43.5446126Z 2020-06-18 00:46:43,543 [Thread-12] INFO  
impl.FollowerState (FollowerState.java:run(117)) - 
s2@group-3E7C5CE5BBB6-FollowerState was interrupted: 
java.lang.InterruptedException: sleep interrupted
2020-06-18T00:46:43.6287348Z 2020-06-18 00:46:43,624 [nioEventLoopGroup-5-1] 
DEBUG impl.RaftServerImpl (RaftServerImpl.java:requestVote(841)) - 
s1@group-3E7C5CE5BBB6 replies to vote request: s0<-s1#0:OK-t1. Peer's state: 
s1@group-3E7C5CE5BBB6:t1, leader=null, voted=s0, 
raftlog=s1@group-3E7C5CE5BBB6-SegmentedRaftLog:OPENED:c-1,f-1,i0, conf=-1: 
[s0:0.0.0.0:33663, s1:0.0.0.0:42355, s2:0.0.0.0:43021], old=null
2020-06-18T00:46:43.6302903Z 2020-06-18 00:46:43,625 [nioEventLoopGroup-9-1] 
DEBUG impl.RaftServerImpl (RaftServerImpl.java:requestVote(841)) - 
s2@group-3E7C5CE5BBB6 replies to vote request: s0<-s2#0:OK-t1. Peer's state: 
s2@group-3E7C5CE5BBB6:t1, leader=null, voted=s0, 
raftlog=s2@group-3E7C5CE5BBB6-SegmentedRaftLog:OPENED:c-1,f-1,i0, conf=-1: 
[s0:0.0.0.0:33663, s1:0.0.0.0:42355, s2:0.0.0.0:43021], old=null
2020-06-18T00:46:43.6400885Z 2020-06-18 00:46:43,635 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  impl.LeaderElection 
(LeaderElection.java:logAndReturn(61)) - s0@group-3E7C5CE5BBB6-LeaderElection1: 
Election PASSED; received 1 response(s) [s0<-s1#0:OK-t1] and 0 exception(s); 
s0@group-3E7C5CE5BBB6:t1, leader=null, voted=s0, 
raftlog=s0@group-3E7C5CE5BBB6-SegmentedRaftLog:OPENED:c-1,f-1,i0, conf=-1: 
[s0:0.0.0.0:33663, s1:0.0.0.0:42355, s2:0.0.0.0:43021], old=null
2020-06-18T00:46:43.6401898Z 2020-06-18 00:46:43,636 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  impl.RoleInfo 
(RoleInfo.java:shutdownLeaderElection(134)) - s0: shutdown LeaderElection
2020-06-18T00:46:43.6402754Z 2020-06-18 00:46:43,636 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  impl.RaftServerImpl 
(RaftServerImpl.java:setRole(174)) - s0@group-3E7C5CE5BBB6: changes role from 
CANDIDATE to LEADER at term 1 for changeToLeader
{color:#DE350B}2020-06-18T00:46:43.6403983Z 2020-06-18 00:46:43,636 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  impl.RaftServerImpl 
(ServerState.java:setLeader(255)) - s0@group-3E7C5CE5BBB6: change Leader from 
null to s0 at term 1 for becomeLeader, leader elected after 618ms{color}
2020-06-18T00:46:43.6404833Z 2020-06-18 00:46:43,639 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
(ConfUtils.java:logGet(44)) - raft.server.staging.catchup.gap = 1000 (default)
2020-06-18T00:46:43.6416295Z 2020-06-18 00:46:43,639 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
(ConfUtils.java:logGet(44)) - raft.server.rpc.sleep.time = 25ms (default)
2020-06-18T00:46:43.6440194Z 2020-06-18 00:46:43,643 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  metrics.RatisMetrics 
(RatisMetrics.java:lambda$create$0(39)) - Creating Metrics Registry : 
ratis.log_appender.s0@group-3E7C5CE5BBB6
2020-06-18T00:46:43.6442875Z 2020-06-18 00:46:43,643 
[s0@group-3E7C5CE5BBB6-LeaderElection1] WARN  impl.MetricRegistriesImpl 
(MetricRegistriesImpl.java:lambda$create$1(61)) - First MetricRegistry has been 
created without registering reporters. You may need to call 
MetricRegistries.global().addReportRegistration(...) before.
2020-06-18T00:46:43.6500584Z 2020-06-18 00:46:43,646 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
(ConfUtils.java:logGet(44)) - raft.server.write.element-limit = 4096 (default)
2020-06-18T00:46:43.6509832Z 2020-06-18 00:46:43,650 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
(ConfUtils.java:logGet(44)) - raft.server.write.byte-limit = 64MB (=67108864) 
(default)
2020-06-18T00:46:43.6641705Z 2020-06-18 00:46:43,656 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
(ConfUtils.java:logGet(44)) - raft.server.watch.timeout = 10s (default)
2020-06-18T00:46:43.6648171Z 2020-06-18 00:46:43,658 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
(ConfUtils.java:logGet(44)) - raft.server.watch.timeout.denomination = 1s 
(default)
2020-06-18T00:46:43.6651041Z 2020-06-18 00:46:43,658 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
(ConfUtils.java:logGet(44)) - raft.server.watch.element-limit = 65536 (default)
2020-06-18T00:46:43.6697072Z 2020-06-18 00:46:43,669 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
(ConfUtils.java:logGet(44)) - raft.server.log.appender.snapshot.chunk.size.max 
= 16MB (=16777216) (default)
2020-06-18T00:46:43.6713970Z 2020-06-18 00:46:43,669 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
(ConfUtils.java:logGet(44)) - raft.server.log.appender.buffer.byte-limit = 4MB 
(=4194304) (default)
2020-06-18T00:46:43.6714691Z 2020-06-18 00:46:43,670 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
(ConfUtils.java:logGet(44)) - raft.server.log.appender.buffer.element-limit = 0 
(default)
2020-06-18T00:46:43.6761166Z 2020-06-18 00:46:43,674 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
(ConfUtils.java:logGet(44)) - raft.server.log.appender.snapshot.chunk.size.max 
= 16MB (=16777216) (default)
2020-06-18T00:46:43.6803817Z 2020-06-18 00:46:43,674 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
(ConfUtils.java:logGet(44)) - raft.server.log.appender.buffer.byte-limit = 4MB 
(=4194304) (default)
2020-06-18T00:46:43.6804409Z 2020-06-18 00:46:43,676 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
(ConfUtils.java:logGet(44)) - raft.server.log.appender.buffer.element-limit = 0 
(default)
2020-06-18T00:46:43.6805103Z 2020-06-18 00:46:43,678 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  impl.RoleInfo 
(RoleInfo.java:updateAndGet(143)) - s0: start LeaderState
2020-06-18T00:46:43.6910694Z 2020-06-18 00:46:43,690 
[s0@group-3E7C5CE5BBB6-LeaderElection1] DEBUG raftlog.RaftLog 
(SegmentedRaftLog.java:appendImpl(454)) - truncateIndex=-1, arrayIndex=0
2020-06-18T00:46:43.6944267Z 2020-06-18 00:46:43,693 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  segmented.SegmentedRaftLogWorker 
(SegmentedRaftLogWorker.java:startLogSegment(391)) - 
s0@group-3E7C5CE5BBB6-SegmentedRaftLogWorker: Starting segment from index:0
{color:#DE350B}2020-06-18T00:46:43.7132697Z 2020-06-18 00:46:43,712 [Thread-14] 
INFO  impl.FollowerState (FollowerState.java:run(108)) - 
s1@group-3E7C5CE5BBB6-FollowerState: change to CANDIDATE, lastRpcTime:175ms, 
{color}electionTimeout:169ms

  was:
2020-06-18T00:46:43.5446126Z 2020-06-18 00:46:43,543 [Thread-12] INFO  
impl.FollowerState (FollowerState.java:run(117)) - 
s2@group-3E7C5CE5BBB6-FollowerState was interrupted: 
java.lang.InterruptedException: sleep interrupted
2020-06-18T00:46:43.6287348Z 2020-06-18 00:46:43,624 [nioEventLoopGroup-5-1] 
DEBUG impl.RaftServerImpl (RaftServerImpl.java:requestVote(841)) - 
s1@group-3E7C5CE5BBB6 replies to vote request: s0<-s1#0:OK-t1. Peer's state: 
s1@group-3E7C5CE5BBB6:t1, leader=null, voted=s0, 
raftlog=s1@group-3E7C5CE5BBB6-SegmentedRaftLog:OPENED:c-1,f-1,i0, conf=-1: 
[s0:0.0.0.0:33663, s1:0.0.0.0:42355, s2:0.0.0.0:43021], old=null
2020-06-18T00:46:43.6302903Z 2020-06-18 00:46:43,625 [nioEventLoopGroup-9-1] 
DEBUG impl.RaftServerImpl (RaftServerImpl.java:requestVote(841)) - 
s2@group-3E7C5CE5BBB6 replies to vote request: s0<-s2#0:OK-t1. Peer's state: 
s2@group-3E7C5CE5BBB6:t1, leader=null, voted=s0, 
raftlog=s2@group-3E7C5CE5BBB6-SegmentedRaftLog:OPENED:c-1,f-1,i0, conf=-1: 
[s0:0.0.0.0:33663, s1:0.0.0.0:42355, s2:0.0.0.0:43021], old=null
2020-06-18T00:46:43.6400885Z 2020-06-18 00:46:43,635 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  impl.LeaderElection 
(LeaderElection.java:logAndReturn(61)) - s0@group-3E7C5CE5BBB6-LeaderElection1: 
Election PASSED; received 1 response(s) [s0<-s1#0:OK-t1] and 0 exception(s); 
s0@group-3E7C5CE5BBB6:t1, leader=null, voted=s0, 
raftlog=s0@group-3E7C5CE5BBB6-SegmentedRaftLog:OPENED:c-1,f-1,i0, conf=-1: 
[s0:0.0.0.0:33663, s1:0.0.0.0:42355, s2:0.0.0.0:43021], old=null
2020-06-18T00:46:43.6401898Z 2020-06-18 00:46:43,636 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  impl.RoleInfo 
(RoleInfo.java:shutdownLeaderElection(134)) - s0: shutdown LeaderElection
2020-06-18T00:46:43.6402754Z 2020-06-18 00:46:43,636 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  impl.RaftServerImpl 
(RaftServerImpl.java:setRole(174)) - s0@group-3E7C5CE5BBB6: changes role from 
CANDIDATE to LEADER at term 1 for changeToLeader
2020-06-18T00:46:43.6403983Z 2020-06-18 00:46:43,636 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  impl.RaftServerImpl 
(ServerState.java:setLeader(255)) - s0@group-3E7C5CE5BBB6: change Leader from 
null to s0 at term 1 for becomeLeader, leader elected after 618ms
2020-06-18T00:46:43.6404833Z 2020-06-18 00:46:43,639 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
(ConfUtils.java:logGet(44)) - raft.server.staging.catchup.gap = 1000 (default)
2020-06-18T00:46:43.6416295Z 2020-06-18 00:46:43,639 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
(ConfUtils.java:logGet(44)) - raft.server.rpc.sleep.time = 25ms (default)
2020-06-18T00:46:43.6440194Z 2020-06-18 00:46:43,643 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  metrics.RatisMetrics 
(RatisMetrics.java:lambda$create$0(39)) - Creating Metrics Registry : 
ratis.log_appender.s0@group-3E7C5CE5BBB6
2020-06-18T00:46:43.6442875Z 2020-06-18 00:46:43,643 
[s0@group-3E7C5CE5BBB6-LeaderElection1] WARN  impl.MetricRegistriesImpl 
(MetricRegistriesImpl.java:lambda$create$1(61)) - First MetricRegistry has been 
created without registering reporters. You may need to call 
MetricRegistries.global().addReportRegistration(...) before.
2020-06-18T00:46:43.6500584Z 2020-06-18 00:46:43,646 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
(ConfUtils.java:logGet(44)) - raft.server.write.element-limit = 4096 (default)
2020-06-18T00:46:43.6509832Z 2020-06-18 00:46:43,650 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
(ConfUtils.java:logGet(44)) - raft.server.write.byte-limit = 64MB (=67108864) 
(default)
2020-06-18T00:46:43.6641705Z 2020-06-18 00:46:43,656 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
(ConfUtils.java:logGet(44)) - raft.server.watch.timeout = 10s (default)
2020-06-18T00:46:43.6648171Z 2020-06-18 00:46:43,658 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
(ConfUtils.java:logGet(44)) - raft.server.watch.timeout.denomination = 1s 
(default)
2020-06-18T00:46:43.6651041Z 2020-06-18 00:46:43,658 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
(ConfUtils.java:logGet(44)) - raft.server.watch.element-limit = 65536 (default)
2020-06-18T00:46:43.6697072Z 2020-06-18 00:46:43,669 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
(ConfUtils.java:logGet(44)) - raft.server.log.appender.snapshot.chunk.size.max 
= 16MB (=16777216) (default)
2020-06-18T00:46:43.6713970Z 2020-06-18 00:46:43,669 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
(ConfUtils.java:logGet(44)) - raft.server.log.appender.buffer.byte-limit = 4MB 
(=4194304) (default)
2020-06-18T00:46:43.6714691Z 2020-06-18 00:46:43,670 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
(ConfUtils.java:logGet(44)) - raft.server.log.appender.buffer.element-limit = 0 
(default)
2020-06-18T00:46:43.6761166Z 2020-06-18 00:46:43,674 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
(ConfUtils.java:logGet(44)) - raft.server.log.appender.snapshot.chunk.size.max 
= 16MB (=16777216) (default)
2020-06-18T00:46:43.6803817Z 2020-06-18 00:46:43,674 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
(ConfUtils.java:logGet(44)) - raft.server.log.appender.buffer.byte-limit = 4MB 
(=4194304) (default)
2020-06-18T00:46:43.6804409Z 2020-06-18 00:46:43,676 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
(ConfUtils.java:logGet(44)) - raft.server.log.appender.buffer.element-limit = 0 
(default)
2020-06-18T00:46:43.6805103Z 2020-06-18 00:46:43,678 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  impl.RoleInfo 
(RoleInfo.java:updateAndGet(143)) - s0: start LeaderState
2020-06-18T00:46:43.6910694Z 2020-06-18 00:46:43,690 
[s0@group-3E7C5CE5BBB6-LeaderElection1] DEBUG raftlog.RaftLog 
(SegmentedRaftLog.java:appendImpl(454)) - truncateIndex=-1, arrayIndex=0
2020-06-18T00:46:43.6944267Z 2020-06-18 00:46:43,693 
[s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  segmented.SegmentedRaftLogWorker 
(SegmentedRaftLogWorker.java:startLogSegment(391)) - 
s0@group-3E7C5CE5BBB6-SegmentedRaftLogWorker: Starting segment from index:0
2020-06-18T00:46:43.7132697Z 2020-06-18 00:46:43,712 [Thread-14] INFO  
impl.FollowerState (FollowerState.java:run(108)) - 
s1@group-3E7C5CE5BBB6-FollowerState: change to CANDIDATE, lastRpcTime:175ms, 
electionTimeout:169ms


> Leader election happens too fast
> --------------------------------
>
>                 Key: RATIS-980
>                 URL: https://issues.apache.org/jira/browse/RATIS-980
>             Project: Ratis
>          Issue Type: Improvement
>            Reporter: runzhiwang
>            Assignee: runzhiwang
>            Priority: Major
>
> 2020-06-18T00:46:43.5446126Z 2020-06-18 00:46:43,543 [Thread-12] INFO  
> impl.FollowerState (FollowerState.java:run(117)) - 
> s2@group-3E7C5CE5BBB6-FollowerState was interrupted: 
> java.lang.InterruptedException: sleep interrupted
> 2020-06-18T00:46:43.6287348Z 2020-06-18 00:46:43,624 [nioEventLoopGroup-5-1] 
> DEBUG impl.RaftServerImpl (RaftServerImpl.java:requestVote(841)) - 
> s1@group-3E7C5CE5BBB6 replies to vote request: s0<-s1#0:OK-t1. Peer's state: 
> s1@group-3E7C5CE5BBB6:t1, leader=null, voted=s0, 
> raftlog=s1@group-3E7C5CE5BBB6-SegmentedRaftLog:OPENED:c-1,f-1,i0, conf=-1: 
> [s0:0.0.0.0:33663, s1:0.0.0.0:42355, s2:0.0.0.0:43021], old=null
> 2020-06-18T00:46:43.6302903Z 2020-06-18 00:46:43,625 [nioEventLoopGroup-9-1] 
> DEBUG impl.RaftServerImpl (RaftServerImpl.java:requestVote(841)) - 
> s2@group-3E7C5CE5BBB6 replies to vote request: s0<-s2#0:OK-t1. Peer's state: 
> s2@group-3E7C5CE5BBB6:t1, leader=null, voted=s0, 
> raftlog=s2@group-3E7C5CE5BBB6-SegmentedRaftLog:OPENED:c-1,f-1,i0, conf=-1: 
> [s0:0.0.0.0:33663, s1:0.0.0.0:42355, s2:0.0.0.0:43021], old=null
> 2020-06-18T00:46:43.6400885Z 2020-06-18 00:46:43,635 
> [s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  impl.LeaderElection 
> (LeaderElection.java:logAndReturn(61)) - 
> s0@group-3E7C5CE5BBB6-LeaderElection1: Election PASSED; received 1 
> response(s) [s0<-s1#0:OK-t1] and 0 exception(s); s0@group-3E7C5CE5BBB6:t1, 
> leader=null, voted=s0, 
> raftlog=s0@group-3E7C5CE5BBB6-SegmentedRaftLog:OPENED:c-1,f-1,i0, conf=-1: 
> [s0:0.0.0.0:33663, s1:0.0.0.0:42355, s2:0.0.0.0:43021], old=null
> 2020-06-18T00:46:43.6401898Z 2020-06-18 00:46:43,636 
> [s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  impl.RoleInfo 
> (RoleInfo.java:shutdownLeaderElection(134)) - s0: shutdown LeaderElection
> 2020-06-18T00:46:43.6402754Z 2020-06-18 00:46:43,636 
> [s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  impl.RaftServerImpl 
> (RaftServerImpl.java:setRole(174)) - s0@group-3E7C5CE5BBB6: changes role from 
> CANDIDATE to LEADER at term 1 for changeToLeader
> {color:#DE350B}2020-06-18T00:46:43.6403983Z 2020-06-18 00:46:43,636 
> [s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  impl.RaftServerImpl 
> (ServerState.java:setLeader(255)) - s0@group-3E7C5CE5BBB6: change Leader from 
> null to s0 at term 1 for becomeLeader, leader elected after 618ms{color}
> 2020-06-18T00:46:43.6404833Z 2020-06-18 00:46:43,639 
> [s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
> (ConfUtils.java:logGet(44)) - raft.server.staging.catchup.gap = 1000 (default)
> 2020-06-18T00:46:43.6416295Z 2020-06-18 00:46:43,639 
> [s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
> (ConfUtils.java:logGet(44)) - raft.server.rpc.sleep.time = 25ms (default)
> 2020-06-18T00:46:43.6440194Z 2020-06-18 00:46:43,643 
> [s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  metrics.RatisMetrics 
> (RatisMetrics.java:lambda$create$0(39)) - Creating Metrics Registry : 
> ratis.log_appender.s0@group-3E7C5CE5BBB6
> 2020-06-18T00:46:43.6442875Z 2020-06-18 00:46:43,643 
> [s0@group-3E7C5CE5BBB6-LeaderElection1] WARN  impl.MetricRegistriesImpl 
> (MetricRegistriesImpl.java:lambda$create$1(61)) - First MetricRegistry has 
> been created without registering reporters. You may need to call 
> MetricRegistries.global().addReportRegistration(...) before.
> 2020-06-18T00:46:43.6500584Z 2020-06-18 00:46:43,646 
> [s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
> (ConfUtils.java:logGet(44)) - raft.server.write.element-limit = 4096 (default)
> 2020-06-18T00:46:43.6509832Z 2020-06-18 00:46:43,650 
> [s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
> (ConfUtils.java:logGet(44)) - raft.server.write.byte-limit = 64MB (=67108864) 
> (default)
> 2020-06-18T00:46:43.6641705Z 2020-06-18 00:46:43,656 
> [s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
> (ConfUtils.java:logGet(44)) - raft.server.watch.timeout = 10s (default)
> 2020-06-18T00:46:43.6648171Z 2020-06-18 00:46:43,658 
> [s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
> (ConfUtils.java:logGet(44)) - raft.server.watch.timeout.denomination = 1s 
> (default)
> 2020-06-18T00:46:43.6651041Z 2020-06-18 00:46:43,658 
> [s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
> (ConfUtils.java:logGet(44)) - raft.server.watch.element-limit = 65536 
> (default)
> 2020-06-18T00:46:43.6697072Z 2020-06-18 00:46:43,669 
> [s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
> (ConfUtils.java:logGet(44)) - 
> raft.server.log.appender.snapshot.chunk.size.max = 16MB (=16777216) (default)
> 2020-06-18T00:46:43.6713970Z 2020-06-18 00:46:43,669 
> [s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
> (ConfUtils.java:logGet(44)) - raft.server.log.appender.buffer.byte-limit = 
> 4MB (=4194304) (default)
> 2020-06-18T00:46:43.6714691Z 2020-06-18 00:46:43,670 
> [s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
> (ConfUtils.java:logGet(44)) - raft.server.log.appender.buffer.element-limit = 
> 0 (default)
> 2020-06-18T00:46:43.6761166Z 2020-06-18 00:46:43,674 
> [s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
> (ConfUtils.java:logGet(44)) - 
> raft.server.log.appender.snapshot.chunk.size.max = 16MB (=16777216) (default)
> 2020-06-18T00:46:43.6803817Z 2020-06-18 00:46:43,674 
> [s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
> (ConfUtils.java:logGet(44)) - raft.server.log.appender.buffer.byte-limit = 
> 4MB (=4194304) (default)
> 2020-06-18T00:46:43.6804409Z 2020-06-18 00:46:43,676 
> [s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  server.RaftServerConfigKeys 
> (ConfUtils.java:logGet(44)) - raft.server.log.appender.buffer.element-limit = 
> 0 (default)
> 2020-06-18T00:46:43.6805103Z 2020-06-18 00:46:43,678 
> [s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  impl.RoleInfo 
> (RoleInfo.java:updateAndGet(143)) - s0: start LeaderState
> 2020-06-18T00:46:43.6910694Z 2020-06-18 00:46:43,690 
> [s0@group-3E7C5CE5BBB6-LeaderElection1] DEBUG raftlog.RaftLog 
> (SegmentedRaftLog.java:appendImpl(454)) - truncateIndex=-1, arrayIndex=0
> 2020-06-18T00:46:43.6944267Z 2020-06-18 00:46:43,693 
> [s0@group-3E7C5CE5BBB6-LeaderElection1] INFO  
> segmented.SegmentedRaftLogWorker 
> (SegmentedRaftLogWorker.java:startLogSegment(391)) - 
> s0@group-3E7C5CE5BBB6-SegmentedRaftLogWorker: Starting segment from index:0
> {color:#DE350B}2020-06-18T00:46:43.7132697Z 2020-06-18 00:46:43,712 
> [Thread-14] INFO  impl.FollowerState (FollowerState.java:run(108)) - 
> s1@group-3E7C5CE5BBB6-FollowerState: change to CANDIDATE, lastRpcTime:175ms, 
> {color}electionTimeout:169ms



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