[jira] [Resolved] (TUBEMQ-265) Unexpected broker disappearance in broker list after updating default broker metadata

["Jeff Zhou (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/TUBEMQ-265?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jeff Zhou resolved TUBEMQ-265.
------------------------------
    Resolution: Fixed

Tested and Verified OK by PR#180.

> Unexpected broker disappearance in broker list after updating default broker metadata
> -------------------------------------------------------------------------------------
>
>                 Key: TUBEMQ-265
>                 URL: https://issues.apache.org/jira/browse/TUBEMQ-265
>             Project: Apache TubeMQ
>          Issue Type: Bug
>          Components: Broker, Master
>            Reporter: Jeff Zhou
>            Assignee: Jeff Zhou
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 0.5.0
>
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> It's a bug on 0.5.0 after migration of [TUBEMQ-126|https://issues.apache.org/jira/projects/TUBEMQ/issues/TUBEMQ-126]: broker would disappear after updating its default metadata on unflushDataHold, which resulting an "out-of-sync" issue on metadata management.
> Reproduce steps:
>  # Bring a broker online;
>  # Use webapi to submit an update about type of "admin_update_broker_configure", setting a new unflushDataHold;
>  # Monitor log, it would successfully fire this event and proceed the update;
>  # Refresh the broker list on master, you will find it's disappeared;
>  # Retry to add the broker with the same BrokerID and IP Address, it would raise an error about duplicated configuration found, but the broker is still unseen in the broker list.
> Bug is relating to BDB and Master initialization and meta-replication routines.



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