[
https://issues.apache.org/jira/browse/ZOOKEEPER-230?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12650663#action_12650663
]
Mahadev konar commented on ZOOKEEPER-230:
-----------------------------------------
flavio,
- Currently, if a server is on leader election and doesn't receive a
notification for some amount of time t, then it sends a new set of
notifications if at least one server has delivered a message from the previous
set. With this patch, the amount of time a server waits for a notification
before sending a new set increases exponentially;
i dont unserstand the reason behind this. do we generate too many messages for
the leader election notification? I think the traffic generated should be
small. Also this does not seem to have a limit on exponential backoff. It will
increase to insanely large amounts in case of network partition right?
> Improvements to FLE
> -------------------
>
> Key: ZOOKEEPER-230
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-230
> Project: Zookeeper
> Issue Type: Improvement
> Components: leaderElection
> Affects Versions: 3.0.0
> Reporter: Flavio Paiva Junqueira
> Assignee: Flavio Paiva Junqueira
> Fix For: 3.1.0
>
> Attachments: ZOOKEEPER-230.patch
>
>
> I'm about to attach a patch that implements the following modifications:
> . Currently, if a server is on leader election and doesn't receive a
> notification for some amount of time t, then it sends a new set of
> notifications if at least one server has delivered a message from the
> previous set. With this patch, the amount of time a server waits for a
> notification before sending a new set increases exponentially;
> . I have separated connecting to servers and queuing new notification
> messages. Before they were all in the same message. The advantage is that now
> I can tell to an instance of QuorumCnxManager to try to connect to other
> servers without generating new notification messages;
> . I have changed the logging level of several messages on QuorumCnxManager.
> They were "warn", but they should really be either "info" or "debug". I've
> changed them to info.
>
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
