[
https://issues.apache.org/jira/browse/RATIS-698?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16948904#comment-16948904
]
Lokesh Jain edited comment on RATIS-698 at 10/10/19 7:54 PM:
-------------------------------------------------------------
I think this is causing test failures in
TestRaftAsyncWithGrpc#testBasicAppendEntriesAsync and other tests. If the
initial minTimeout is 0 then the server can trigger a leader election much more
frequently because the heartbeat interval is still at minTimeoutMs/2?
{code:java}
2019-10-11 00:45:47,813 INFO impl.FollowerState (FollowerState.java:run(108))
- s0@group-C51B0F2AC202-FollowerState: change to CANDIDATE, lastRpcTime:21ms,
electionTimeout:17ms
2019-10-11 00:45:47,870 INFO impl.FollowerState (FollowerState.java:run(108))
- s0@group-C51B0F2AC202-FollowerState: change to CANDIDATE, lastRpcTime:35ms,
electionTimeout:31ms
2019-10-11 00:45:47,933 INFO impl.FollowerState (FollowerState.java:run(108))
- s0@group-C51B0F2AC202-FollowerState: change to CANDIDATE, lastRpcTime:51ms,
electionTimeout:51ms
2019-10-11 00:45:47,969 INFO impl.FollowerState (FollowerState.java:run(108))
- s0@group-C51B0F2AC202-FollowerState: change to CANDIDATE, lastRpcTime:22ms,
electionTimeout:21ms
{code}
was (Author: ljain):
I think this is causing test failures in
TestRaftAsyncWithGrpc#testBasicAppendEntriesAsync and other tests. If the
initial minTimeout is 0 then the server can trigger a leader election much more
frequently because the heartbeat interval is still at minTimeoutMs/2.
{code:java}
2019-10-11 00:45:47,813 INFO impl.FollowerState (FollowerState.java:run(108))
- s0@group-C51B0F2AC202-FollowerState: change to CANDIDATE, lastRpcTime:21ms,
electionTimeout:17ms
2019-10-11 00:45:47,870 INFO impl.FollowerState (FollowerState.java:run(108))
- s0@group-C51B0F2AC202-FollowerState: change to CANDIDATE, lastRpcTime:35ms,
electionTimeout:31ms
2019-10-11 00:45:47,933 INFO impl.FollowerState (FollowerState.java:run(108))
- s0@group-C51B0F2AC202-FollowerState: change to CANDIDATE, lastRpcTime:51ms,
electionTimeout:51ms
2019-10-11 00:45:47,969 INFO impl.FollowerState (FollowerState.java:run(108))
- s0@group-C51B0F2AC202-FollowerState: change to CANDIDATE, lastRpcTime:22ms,
electionTimeout:21ms
{code}
> RaftServerImpl should not enforce minTimeout before first leaderElection cycle
> ------------------------------------------------------------------------------
>
> Key: RATIS-698
> URL: https://issues.apache.org/jira/browse/RATIS-698
> Project: Ratis
> Issue Type: Improvement
> Components: server
> Affects Versions: 0.4.0
> Reporter: Siddharth Wagle
> Assignee: Siddharth Wagle
> Priority: Major
> Fix For: 0.5.0
>
> Attachments: RATIS-698.01.patch, RATIS-698.02.patch,
> RATIS-698.03.patch, RATIS-698.04.patch
>
>
> Followers always wait for (minTimeoutMillis + randomWait), before initiating
> leader election. This penalizes the first time the ratis ring is created or
> when server restarts by enforcing a wait for leader election term.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
