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Posted to issues@ignite.apache.org by "Andrew Mashenkov (JIRA)" <ji...@apache.org> on 2019/02/04 10:20:00 UTC

[jira] [Updated] (IGNITE-9290) Make remove explicit locks async when node left.

     [ https://issues.apache.org/jira/browse/IGNITE-9290?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrew Mashenkov updated IGNITE-9290:
-------------------------------------
    Labels: deadlock  (was: deadlock iep-25)

> Make remove explicit locks async when node left.
> ------------------------------------------------
>
>                 Key: IGNITE-9290
>                 URL: https://issues.apache.org/jira/browse/IGNITE-9290
>             Project: Ignite
>          Issue Type: Bug
>          Components: cache
>            Reporter: Andrew Mashenkov
>            Assignee: Andrew Mashenkov
>            Priority: Critical
>              Labels: deadlock
>             Fix For: 2.8
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> GridCacheMvccManager.removeExplicitNodeLocks() run synchronously in discovery and exchange threads. This introduce unnecessary delays in discovery and exchange process.
> Also, this may cause a deadlock on node stop if user transaction holds an entry lock and awaits some Ignite manager response (e.g. cache store or DR or CQ), as manager stops right after last exchange has finished so managers can't detect node is stopping. 
>  
> [1] [http://apache-ignite-developers.2346864.n4.nabble.com/Synchronous-tx-entries-unlocking-in-discovery-exchange-threads-td33827.html] 



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