[
https://issues.apache.org/jira/browse/YARN-3025?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14295374#comment-14295374
]
Sunil G commented on YARN-3025:
-------------------------------
bq.If we want to make sure the blacklisted nodes is recoverable after RM
crashing
Could we write to a memory store during every heartbeat only if a new blacklist
is published by AM. And a periodic sync from mem store to normal State Store to
avoid frequent writes.
> Provide API for retrieving blacklisted nodes
> --------------------------------------------
>
> Key: YARN-3025
> URL: https://issues.apache.org/jira/browse/YARN-3025
> Project: Hadoop YARN
> Issue Type: Improvement
> Reporter: Ted Yu
>
> We have the following method which updates blacklist:
> {code}
> public synchronized void updateBlacklist(List<String> blacklistAdditions,
> List<String> blacklistRemovals) {
> {code}
> Upon AM failover, there should be an API which returns the blacklisted nodes
> so that the new AM can make consistent decisions.
> The new API can be:
> {code}
> public synchronized List<String> getBlacklistedNodes()
> {code}
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
