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https://issues.apache.org/jira/browse/IGNITE-20310?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mirza Aliev updated IGNITE-20310:
---------------------------------
    Description: 
h3. *Motivation*

There are meta storage invokes in DistributionZoneManager start. Currently it 
does the meta storage invokes in 
DistributionZoneManager#createOrRestoreZoneState:
# DistributionZoneManager#initDataNodesAndTriggerKeysInMetaStorage to init the 
default zone.
# DistributionZoneManager#restoreTimers in case when a filter update was 
handled before DZM stop, but it didn't update data nodes.

Futures of these invokes are ignored. So after the start method is completed 
actually not all start actions are completed. It can lead to the following 
situation: 
* Initialisation of the default zone is hanged for some reason even after full 
restart of the cluster.
* That means that all data nodes related keys in metastorage haven't been 
initialised.
* For example, if user add some new node, and scale up timer is immedate, which 
leads to immediate data nodes recalculation, this recalculation won't happen, 
because data nodes key have not been initialised. 


  was:
There are meta storage invokes in DistributionZoneManager start. Currently it 
does the meta storage invokes in 
DistributionZoneManager#createOrRestoreZoneState:
# DistributionZoneManager#initDataNodesAndTriggerKeysInMetaStorage to init the 
default zone.
# DistributionZoneManager#restoreTimers. in case when a filter update was 
handled before DZM stop, but it didn't update data nodes.

Futures of these invokes are ignored. So after the start method is completed 
actually not all start actions are completed.



> Meta storage invokes are not completed  when DZM start is completed
> -------------------------------------------------------------------
>
>                 Key: IGNITE-20310
>                 URL: https://issues.apache.org/jira/browse/IGNITE-20310
>             Project: Ignite
>          Issue Type: Bug
>            Reporter: Sergey Uttsel
>            Priority: Major
>              Labels: ignite-3
>
> h3. *Motivation*
> There are meta storage invokes in DistributionZoneManager start. Currently it 
> does the meta storage invokes in 
> DistributionZoneManager#createOrRestoreZoneState:
> # DistributionZoneManager#initDataNodesAndTriggerKeysInMetaStorage to init 
> the default zone.
> # DistributionZoneManager#restoreTimers in case when a filter update was 
> handled before DZM stop, but it didn't update data nodes.
> Futures of these invokes are ignored. So after the start method is completed 
> actually not all start actions are completed. It can lead to the following 
> situation: 
> * Initialisation of the default zone is hanged for some reason even after 
> full restart of the cluster.
> * That means that all data nodes related keys in metastorage haven't been 
> initialised.
> * For example, if user add some new node, and scale up timer is immedate, 
> which leads to immediate data nodes recalculation, this recalculation won't 
> happen, because data nodes key have not been initialised. 



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