[infinispan-issues] [JBoss JIRA] (ISPN-2697) HotRodServer startup fails when its record cannot be inserted into topology cache

[Dan Berindei (JIRA)]

    [ https://issues.jboss.org/browse/ISPN-2697?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12750157#comment-12750157 ] 

Dan Berindei commented on ISPN-2697:
------------------------------------

@Radim, I don't know the STABLE code very well, but I think STABILITY messages are sent in response to STABLE_GOSSIP messages, with a fixed (well, random, but with a fixed upper limit) delay. So if the STABLE_GOSSIP rate stays constant, the STABILITY rate will stay constant as well.

I did overlook the STABLE.stability_delay setting, so we should probably require/advise that sync.replTimeout > 2 * STABLE.desired_avg_gossip + STABLE.stability_delay.
                
> HotRodServer startup fails when its record cannot be inserted into topology cache
> ---------------------------------------------------------------------------------
>
>                 Key: ISPN-2697
>                 URL: https://issues.jboss.org/browse/ISPN-2697
>             Project: Infinispan
>          Issue Type: Bug
>          Components: Remote protocols
>    Affects Versions: 5.2.0.Beta6
>            Reporter: Radim Vansa
>            Assignee: Galder Zamarreño
>            Priority: Critical
>             Fix For: 5.2.0.Final
>
>
> When the HotRodServer starts it inserts its record to __hotRodTopologyCache ({{HotRodServer.addSelfToTopologyView(...)}}).
> However, this put may very easily fail - as the command is broadcasted using NAKACK2 protocol, if the message gets lost and there's no following broadcasted message, the message will be not retransmitted and the put operation times out (Replication timeout), which fails the whole HotRodServer startup, all because of one lost UDP message.

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