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Posted to issues@ignite.apache.org by "Mikhail Lipkovich (JIRA)" <ji...@apache.org> on 2017/09/21 12:51:00 UTC
[jira] [Commented] (IGNITE-5357) Replicated cache reads load
balancing.
[ https://issues.apache.org/jira/browse/IGNITE-5357?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16174686#comment-16174686 ]
Mikhail Lipkovich commented on IGNITE-5357:
-------------------------------------------
Hi Alexei,
I'm working on this task but I faced with one question which I can't resolve. There is a {{canRemap}} flag which has an unclear meaning for me. Here is the relevant piece of code that I'm going to change according to the task in {{GridPartitionedSingleGetFuture#affinityNode}}:
{code}
if (!canRemap) {
for (ClusterNode node : affNodes) {
if (cctx.discovery().alive(node))
return node;
}
return null;
}
else
return affNodes.get(0);
{code}
It's commented that {{canRemap}} is a flag indicating that get should be done on a locked topology version but it's not clear for my how is it related to piece of code above. Should I somehow take care about this flag during implementation of requested functionality or I can just ignore it?
Thanks
> Replicated cache reads load balancing.
> --------------------------------------
>
> Key: IGNITE-5357
> URL: https://issues.apache.org/jira/browse/IGNITE-5357
> Project: Ignite
> Issue Type: Bug
> Components: cache
> Affects Versions: 1.6
> Reporter: Alexei Scherbakov
> Assignee: Mikhail Lipkovich
> Labels: newbie
> Fix For: 2.3
>
>
> Currently all read requests from client node to replicated cache will go through primary node for key.
> Need to select random affinity node in topology and send request here (only if readFromBackups=true)
> If where are server nodes collocated on same host with client, must select target node from them.
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