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https://issues.apache.org/jira/browse/IGNITE-10933?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16750123#comment-16750123
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Ignite TC Bot commented on IGNITE-10933:
----------------------------------------

{panel:title=--> Run :: All: No blockers 
found!|borderStyle=dashed|borderColor=#ccc|titleBGColor=#D6F7C1}{panel}
[TeamCity *--> Run :: All* 
Results|https://ci.ignite.apache.org/viewLog.html?buildId=2870883&buildTypeId=IgniteTests24Java8_RunAll]

> Node may hang on join to topology and not move forward
> ------------------------------------------------------
>
>                 Key: IGNITE-10933
>                 URL: https://issues.apache.org/jira/browse/IGNITE-10933
>             Project: Ignite
>          Issue Type: Bug
>            Reporter: Vladislav Pyatkov
>            Assignee: Alexei Scherbakov
>            Priority: Major
>          Time Spent: 0.5h
>  Remaining Estimate: 0h
>
> Several nodes join to topology simultaneously and hang on a long time.
> That can be on first start all cluster nodes or join nodes to completed 
> topology.
> In the logs of problem nodes can see messages:
> {noformat}
> 2019-01-11 18:37:39.296 [WARN ][Thread-56][o.a.i.s.d.tcp.TcpDiscoverySpi] 
> Node has not been connected to topology and will repeat join process. Check 
> remote nodes logs for possible error messages. Note that large topology may 
> require sig
> nificant time to start. Increase 'TcpDiscoverySpi.networkTimeout' 
> configuration property if getting this message on the starting nodes 
> [networkTimeout=5000]
>  2019-01-11 18:43:09.374 [WARN ][Thread-56][o.a.i.s.d.tcp.TcpDiscoverySpi] 
> Node has not been connected to topology and will repeat join process. Check 
> remote nodes logs for possible error messages. Note that large topology may 
> require sig
> nificant time to start. Increase 'TcpDiscoverySpi.networkTimeout' 
> configuration property if getting this message on the starting nodes 
> [networkTimeout=5000]
> ...
> {noformat}
> and so for a long time without others.
> UPDATE: such behavior is caused by transferring 
> TcpDiscoveryClientReconnectMessage stored in pending objects collection to 
> joining node causing socket connection invalidation to joining node and 
> marking it as failed.
> Reproduced by the following scenario:
> 1. Create topology in specific order: srv1 srv2 client srv3 srv4
> 2. Delay client reconnect.
> 3. Trigger topology change by restarting srv2 (will trigger reconnect to next 
> node), srv3, srv4
> 4. Resume reconnect to node with empty EnsuredMessageHistory (triggering 
> discovery message of type TcpDiscoveryClientReconnectMessage) and wait for 
> completion.
> 5. Add new node to topology.
> New node will fail with assertion or forever will stuck on join depending on 
> timings.
> Same scenario could be probably triggered by temporary connection loss to 
> joining node.
> [~v.pyatkov], thanks for help with the investigation.
>  
>  



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