[
https://issues.apache.org/jira/browse/HBASE-7932?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13652426#comment-13652426
]
stack commented on HBASE-7932:
------------------------------
I was going off the TODO comment here and the call on the end where it does
updateMetaWithFavoredNodesInfo
{code}
+ // TODO: processFavoredNodes might throw an exception, for e.g., if the
+ // meta could not be contacted/updated. We need to see how seriously to treat
+ // this problem as. Should we fail the current assignment. We should be able
+ // to recover from this problem eventually (if the meta couldn't be updated
+ // things should work normally and eventually get fixed up).
+ void processFavoredNodes(List<HRegionInfo> regions) throws IOException {
+ if (!shouldAssignRegionsWithFavoredNodes) return;
+ // The AM gets the favored nodes info for each region and updates the meta
+ // table with that info
+ Map<HRegionInfo, List<ServerName>> regionToFavoredNodes =
+ new HashMap<HRegionInfo, List<ServerName>>();
+ for (HRegionInfo region : regions) {
+ regionToFavoredNodes.put(region,
+ ((FavoredNodeLoadBalancer)this.balancer).getFavoredNodes(region));
+ }
+
FavoredNodeLoadBalancer.updateMetaWithFavoredNodesInfo(regionToFavoredNodes,
catalogTracker);
+ }
{code}
If not extra calls to meta, great.
> Do the necessary plumbing for the region locations in META table and send the
> info to the RegionServers
> -------------------------------------------------------------------------------------------------------
>
> Key: HBASE-7932
> URL: https://issues.apache.org/jira/browse/HBASE-7932
> Project: HBase
> Issue Type: Sub-task
> Reporter: Devaraj Das
> Assignee: Devaraj Das
> Priority: Critical
> Fix For: 0.95.1
>
> Attachments: 7932-1.patch, 7932-3.patch, 7932-8.1.patch,
> 7932-8.patch, 7932-simple-2.patch, 7932-simple-with-meta-pb.1.txt,
> 7932-simple-with-meta-pb.2.txt, 7932-wip-2.patch, 7932-wip-3.patch,
> 7932-wip-4.patch, 7932-wip.patch
>
>
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
