[
https://issues.apache.org/jira/browse/CASSANDRA-15097?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16885427#comment-16885427
]
Jay Zhuang edited comment on CASSANDRA-15097 at 7/15/19 5:29 PM:
-----------------------------------------------------------------
Thanks [~samt]. The patch is rebased and tests are passed in circleci:
| Branch | uTest (circleci) |
| [15097-3.0|https://github.com/instagram/cassandra/tree/15097-3.0] |
[pass|https://circleci.com/gh/Instagram/cassandra/tree/15097-3.0] |
| [15097-3.11|https://github.com/instagram/cassandra/tree/15097-3.11] |
[pass|https://circleci.com/gh/Instagram/cassandra/tree/15097-3.11] |
| [15097-trunk|https://github.com/instagram/cassandra/tree/15097-trunk] |
[pass|https://circleci.com/gh/Instagram/cassandra/tree/15097-trunk] |
was (Author: jay.zhuang):
Here is a patch to filter out updated states:
| Branch | uTest (circleci) |
| [15097-3.0|https://github.com/instagram/cassandra/tree/15097-3.0] |
[pass|https://circleci.com/gh/Instagram/cassandra/tree/15097-3.0] |
| [15097-3.11|https://github.com/instagram/cassandra/tree/15097-3.11] |
[pass|https://circleci.com/gh/Instagram/cassandra/tree/15097-3.11] |
| [15097-trunk|https://github.com/instagram/cassandra/tree/15097-trunk] |
[pass|https://circleci.com/gh/Instagram/cassandra/tree/15097-trunk] |
> Avoid updating unchanged gossip state
> -------------------------------------
>
> Key: CASSANDRA-15097
> URL: https://issues.apache.org/jira/browse/CASSANDRA-15097
> Project: Cassandra
> Issue Type: Bug
> Components: Cluster/Gossip
> Reporter: Jay Zhuang
> Assignee: Jay Zhuang
> Priority: Normal
>
> The node might get unchanged gossip states, the state might be just updated
> after sending a GOSSIP_SYN, then it will get the state that is already up to
> date. If the heartbeat in the GOSSIP_ACK message is updated, it will
> unnecessary re-apply the same state again, which could be costly like
> updating token change.
> It's very likely to happen for large cluster when a node startup, as the
> first gossip message will sync all endpoints tokens, it could take some time
> (in our case about 200 seconds), during that time, it keeps gossip with other
> node and get the full token states. Which causes lots of pending gossip tasks.
--
This message was sent by Atlassian JIRA
(v7.6.14#76016)
---------------------------------------------------------------------
To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org
For additional commands, e-mail: commits-h...@cassandra.apache.org
