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https://issues.apache.org/jira/browse/IGNITE-10496?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16710730#comment-16710730
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Peter Karich edited comment on IGNITE-10496 at 12/5/18 11:11 PM:
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I observed the following behaviour: when two nodes "put" objects with the same
frequency into a mostly empty queue then the "take" frequency on both nodes
should be similar. But what I observe is that one node is heavily preferred,
forcing several unnecessary hops to it. This should be more efficient.
was (Author: peathal):
I observed the following behaviour: when two nodes put with the same frequency
into a mostly empty queue the "take" frequency on both nodes should be similar.
But what I observe is that one node is heavily preferred, forcing several
unnecessary hops to it. This should be more efficient.
> Unfair queue polling for mostly empty queue
> -------------------------------------------
>
> Key: IGNITE-10496
> URL: https://issues.apache.org/jira/browse/IGNITE-10496
> Project: Ignite
> Issue Type: Bug
> Affects Versions: 2.6
> Reporter: Peter Karich
> Priority: Minor
>
> I created a simple consumer+producer scenario:
> [https://github.com/karussell/igniteexample/blob/master/src/main/java/test/IgniteTest.java]
>
> This leads to the bug that mostly one machine gets all items from the queue,
> IMO it should work like round robin nature and make it possible for the other
> machine to poll. If this is not a bug it should be a least written somewhere
> in the documentation.
>
> Also please note, if you increase the sleep in the example above the load is
> equal like in the original example code here:
>
> http://apache-ignite-users.70518.x6.nabble.com/Clearing-a-distributed-queue-hangs-after-taking-down-one-node-td7353.html
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