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From "Dmitriy Pavlov (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (IGNITE-7005) Ability to disable WAL (Recoverable case)
Date Tue, 26 Jun 2018 16:09:17 GMT

     [ https://issues.apache.org/jira/browse/IGNITE-7005?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Dmitriy Pavlov updated IGNITE-7005:
-----------------------------------
    Fix Version/s:     (was: 2.6)
                   2.7

> Ability to disable WAL (Recoverable case)
> -----------------------------------------
>
>                 Key: IGNITE-7005
>                 URL: https://issues.apache.org/jira/browse/IGNITE-7005
>             Project: Ignite
>          Issue Type: Task
>          Components: persistence
>            Reporter: Anton Vinogradov
>            Priority: Major
>             Fix For: 2.7
>
>
> In addition to non recoverable case(IGNITE-7003):
> On WAL disabling we should (on each node)
> - trigger exchange to guarantie consistent state
> - schedule new checkpoint. This checkpoint should be recorded to special place (temporary
checkpoint location), to prevent damage of latest one.
> All new checkpoints should update temporary checkpoint.
> On WAL enabling we should (on each node) after all nodes reported that checkpoints finished
> - merge temp checkpoint with stable (scheduled before WAL disabling)
> - clean WAL
> before enabling proxies 
> On any failure during loading (while WAL disabled or enabling) we should be able to reactivate
cluster with
> - data from original checkpoints & WAL for affected caches
> - latest state for non affected caches
> Failover:
> Any topology change should be covered(while WAL disabled or enabling)
> - Node(s) Left (inc. coordinator)
> - Node(s) Join



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